The genital pouch in male cockroach is situated at the hind end of the abdomen bounded dorsally by the terga of 9th and 10th segments and ventrally by the sternum of 9th segment. Both male and female reproductive systems have organs called gonads that produce gametes. Collaterial glands : These are a pair of white and highly branched accessory reproductive glands located dorsally to the genital pouch. They absorb nitrogenous waste products and convert them into uric acid. Female Reproductive System of Cockroach / Grasshopper. Excretory System 5. © 2020 - Agriculture. Each ovary consists of several finger-like projections. Each ovary is formed of a group of eight ovarian tubules or ovarioles. This is called mosaic vision. The thoracic ganglia give off nerves to the muscles of the legs and wings. Once in the uterus, the fertilized egg can implant into thickened uteri… The two vasa deferentia, one from each testis, run posteriorly downwards and open into the ejaculatory duct through seminal vesicles. At the junction of the midgut and the hindgut there are 100-150 thin, delicate, yellowish thread-like (or hair like) structures called the Malpighian tubules. There is an accessory reproductive gland in the 6 th and 7 th abdominal segments that is mushroom shaped. Female Reproductive System: The female reproductive system of cockroach consists of two large ovaries. What Is the Reproductive System? The female reproductive system makes its own hormones that help to control a woman's monthly cycle. The female deposits the ootheca near a source of food by either simply dropping it or gluing it to a surface with a secretion from her mouth. The key difference between male and female reproductive system is that the male reproductive system produces sperms while the female reproductive system produces egg cells or the ova. OVARIES ❤. Each spiracle is a slit like aperture which is guarded by bristles or hairs to prevent the passage of dirt. The spermathecae help in the storage of sperms received during copulation from the male. The perivisceral sinus contains the alimentary canal along with the whitish mass of tissue called fat body. (2) Sixteen ova, one from each ovariole of the two ovaries, are dischagred at a time into the genital … All of this takes place at 30 C, the optimum temperature for growth and reproduction. Male Reproductive System of Cockroach/Grasshopper Male Cockroach: Antennae are longer than body and third segment shorter than second. The two spermathecae open by a median aperture in the dorsal wall of the genital pouch, at the tip of a small spermathecal papilla on 9th sternum. Before publishing your Notes on this site, please read the following pages: 1. During copulation, spermatophore is deposited near the spermathecal pore by gonapophyses of male. The nymph undergoes moulting about 13 times to become the adult. The circulatory system is of open type in cockroach. Reproductive System; Cockroaches are dioecious animals, i.e. Both now get into end-to-end position. Genital pouch or gynatrium is a large boat shaped structure which is largely formed by the 7th sternum. Furthermore, penis, scrotum, seminal vesicles, vas deferens, prostate, and Cowper’s gland are the structures of the male reproductive system … Each ovariole has a thread like apical prolongation, the terminal filament. iii. Opening into the anterior end of the midgut, there are six to eight hepatic caecae (gastric caecae or enteric caecae or mesenteric caecae). It is a single, median, wide, glandular and muscular duct which extends backward and opens into the genital pouch through the male genital pore. v. Spermatheca: It is a sac or pouch like structure, made up of two slender, spirally coiled tubules of unequal size united to form a short stalk which opens into the dorsal wall of vagina. The genital pouch can be divided into two parts. It consists of a pair of ovaries , oviducts , vagina , spermathecae, colleterial gand... ❤. It gives off nerves to mandibles, maxillae and labium. The common thread of one ovary unites with the one from the opposite ovary and forms a median ligament. The process of copulation lasts for an hour or so, after which the male and female separate. Mesosternum completely divided and seventh sternum is visible. Respiratory System of Cockroach 3. The sperms which are formed inside the testes are carried through the vasa deferentia and passed to the seminal vesicles. Content Guidelines 2. 2. are a part of reproductive system of female cockroach and are associated with utricular gland . A cockroach can receive several images with the help of several ommatidia. Each ovary is formed of a group of eight ovarian tubules or ovarioles, containing a chain of developing ova. Malpighian tubules are the main excretory organs of cockroach. The haemolymph does not help in respiration. The oesophagus is continued into a thin-walled sac-like dilatable crop. There are many species of cockroaches in the wild and are of least economic importance. Each ovariole forms one mature ovum at a time. Fig. It contains dorsal anus, ventral male genital pore and gonapophyses. Older females were less choosy than younger females. The gizzard contains an anterior armarium, middle pulvillus and posterior stomodeal valve. In young cockroaches these are well developed and functional while in adult ones they are non-functional and greatly reduced. Your email address will not be published. This arrangement very well compensates for the inability of blood to transport oxygen due to the absence of a respiratory pigment. This website includes study notes, research papers, essays, articles and other allied information submitted by visitors like YOU. Malpighian tubules are the fine, long, unbranched, yellowish and blind tubules attached to the alimentary canal at the extreme anterior end of the hindgut. The oocytes are then transported to the fallopian tube where fertilization by a sperm may occur. The alimentary canal consists of three parts namely: Foregut or the stomodaeum is the first part of the alimentary canal. There are three pairs of large ganglia in the thorax, one pair in each of the pro, meso and metathoracic segments. Although diverse, insects are quite similar in overall design, internally and externally. More reabsorption of water takes place in colon and rectum so that more or less solid uric acid is eliminated with faeces through anus. In cockroach, the sexes are separate and there is a distinct sexual dimorphism. So after molt 1 the larva weighs 4 mg, after molt 2 … 8 mg and so on. In mating, first the male gets under female, extends his left hooked phallomere into the female genital chamber, clasping a small sclerite in front of ovipositor and then moves from beneath her. Surrounding the male genital pore in the genital pouch there are three chitinous plates called phallomeres. Nymphs are similar to the adult in morphology and physiology but are smaller in size, paler in colour, wingless and sexually immature. About one week after mating the female produce an ootheca and at the peak of her reproductive period, she may form about two ootheca per week. The vagina is an elastic, muscular canal that can accommodate the penis. Development is direct, the nymphs look very much like adults and life history includes three stages – egg → nymph → adult. The tubules of left collateral glands are opaque white while those of right transparent and colorless. The Male Reproductive Organs: i. Testes: They are a pair of faintly […] Anal styles are absent. The female reproductive system is made up of internal and external organs that function to produce haploid female gametes called eggs, secrete female sex hormones (such as estrogen), and carry and give birth to a fetus. Difference between Male and Female Cockroach Cockroaches are found in places where there is a warmth, dampness and plenty of organic food to devour. They contain a chain of developing ova. A typical egg case contains about 14 to 16 eggs. All Rights Reserved. Female Reproductive System of Cockroach / Grasshopper. Common Oviduct: The lateral oviducts unite below the hind gut and form a common duct which opens into the genital chamber by a vertical slit, the female gonophores. Its narrow duct opens into the genital pouch by the side of male gonopore. These completely circular cuticular rings keep the tracheae distended and prevent the tracheae from collapsing even if there is no air in them. When the heart and aorta contract peristaltically from behind forwards the blood is driven into head sinus and then into the perivisceral and perineural sinuses. (c) A terminal, short, dilated sac-like rectum which opens to the outside by the anus. In female cerci alone are present and styli are absent. Preoral cavity leads to mouth (preoral cavity is the cavity enclosed by mouth parts). Once the sperms migrate into the spermatheca, the spermatophore wall is dropped. A pair of anal styles (clasper) is present. 2. Sub-oesophageal ganglion is present below the oesophagus, posterior to the brain. Reproductive System The reproductive system is well developed in both the male and female cockroaches. Female reproductive system: It consists of a pair of ovaries which possess number of ovarioles a pair of oviducts, common oviduct / Median oviduct spermatheca a pair of accessory glands and Bursa copulatrix or copulatory pouch or genital chamber or vagina Both the lateral oviducts unite to form a broad median common oviduct called vagina. It is endodermal in origin. It is the main site of digestion and absorption. Classification of cockroach 2. This process is called ovulation. Female Reproductive Organs of Cockroach: (i) Ovaries:. The wings of female cockroach are smaller and extend up to the tip of the abdomen. Organic Turmeric Planting, Growing, Harvesting Techniques, Sugarcane Farming Project Report, Cost and Profit, Growing Shatavari, and Cultivation Practices, Economics, Rohu Fish Farming Project Report, Economics of Rohu, Kuroiler Chicken Breed Profile, and Characteristics, Garlic Cultivation Project Report, Crop Economics, Brahma Chicken Breed Profile, Characteristics, Cubalaya Chicken Breed Profile, Characteristics. Difference # Female Cockroach: 1. It represents the brain which is chiefly concerned with sensory function. The pulsatile heart of cockroach is a long narrow tube with anterior end open and posterior end closed. From the sub-oesophageal ganglion arises a double ventral nerve cord which runs through the thorax and abdomen below the alimentary canal upto the posterior end of the body. The latter lies immediately ventral to the anus, between 9th and 10th sterna. The seventh abdominal ganglion is the largest which is supposed to be formed by the fusion of three pairs of ganglia. Each ovary... ❤. The apices of these muscles are attached to the terga and their broad bases to the dorsal diaphragm. The sperms are stored in the seminal vesicles and are glued together in the form of bundles called spermatophores which are discharged during copulation. : Reproductive organs of female cockroach. Save my name, email, and website in this browser for the next time I comment. Each chamber communicates with the one in front of it by a valvular opening. Mesosternum is partly divided and ninth sternum is visible. Each testis consists of 30-40 small whitish transparent follicles in which the spermatozoa are formed. Reproductive System. Respiratory System of Cockroach: The cockroach has a very peculiar and well-developed respira­tory … Circulatory System 4. REPRODUCTIVE SYSTEM IN INSECTS Sexual dimorphism is noticed in cockroach In male cockroach, at the posterior end of the abdomen there is a pair of short segmented anal cerci and unsegmented anal styli. A pair of ovaries lies laterally in the 2nd and 6th abdominal segment. Welcome to NotesOnZoology.com! The antennae are relatively larger than that of the males. It is also formed by the fusion of three pairs of ganglia – mandibular, maxillary and labial ganglia. It controls the movements of muscles of mouth parts. In response, the sexually excited male raises its forewing and rapidly flutters its hindwings. However, Mastotermitidae termites have multiflagellate sperm with limited … On an average a female cockroach produces 9-10 oothecae during her life time each containing 14-16 eggs arranged in two rows. The female reproductive system is made up of many parts. The reproductive system is the human organ system responsible for the production and fertilization of gametes (sperm or eggs) and, in females, the carrying of a fetus. The main difference between male and female reproductive system is that male reproductive system produces and delivers sperms to the female reproductive system whereas female reproductive system facilitates fertilization and develops the baby. It secretes material which forms the dark and hard covering of ootheca or the egg pod. Disclaimer Copyright, Zoology Notes | Exclusive Notes on Zoology for Students, Reproductive System of Grasshopper (With Diagram), Earthworm: Digestive and Reproductive System | Zoology, Frog: Digestive, Respiratory & Reproductive System | Zoology, Essay on Cockroach: Digestive System and Respiratory System, Classification of Connective Tissue | Animal Tissues | Zoology. These parts function together to do many things, such as producing eggs and hormones, maintaining a … The left gland is larger and more opaque than the right one. Of these one pair arises laterally from 8th sternum, while other two pairs arise from 9th sternum. The undigested material is eliminated as faeces through the anus in the form of slender pellets. The nervous system consists of the following: The supra-oesophageal ganglion or the cerebral ganglion is a bilobed structure formed by the fusion of three pairs of ganglia viz., proto, deuto and tritocerebrum. Insect physiology includes the physiology and biochemistry of insect organ systems.. Present on the ventral surface of the anterior part of ejaculatory duct there is a sac formed of short bulbous tubules, called seminal vesicle. The anterior smaller part containing female gonopore and pores of spermathecae and collateral glands is called genital atrium or genital chamber, while the larger posterior part in which ootheca is formed is called oothecal chamber or vestibulum. If the female had continuous food availability it could produce an ootheca every 2-3 days to 30 °C. Male Reproductive System It is located in the posterior part of the abdomen. It is the main motor centre. The female reproductive system of earthworm comprises ovaries, oviduct and spermatheca. TOS4. There is a heart and aorta but no capillaries or veins. The tracheae have cuticular lining called intima or taenidia which form spiral or ring like thickening around the tracheae. It is situated in the pericardial sinus mid-dorsally beneath the terga of thorax and abdomen. If you wanted to slow it down you could lower the temp to 25 C and you would double all the times (approximately). ii. The supra-oesophageal ganglion and the sub-oesophageal ganglion are connected by a pair of circum-oesophageal connectives or commissures which encircle the oesophagus. The hinder part of each heart chamber has a pair of minute lateral openings called ostia which allow the haemolymph to flow in only one direction i.e., from pericardial sinus to the heart and not vice versa. They help in absorbing water. The deposited ootheca contains water sufficient for the eggs to develop without receiving additional water from the substrate. The major sense organs of cockroach are antenneae, eyes, maxillary palps, labial palps, anal cerci etc. The haemolymph circulates in the body cavity by the contraction and relaxation of the heart which is assisted by the alary muscles. They are excretory in function. Each trachea ends in a large terminal cell called tracheole cell or tracheal end cell from which arise very fine tubes called tracheoles. The abdominal spiracles are situated one pair in each of the first eight abdominal segments, between the terga and sterna. ⇨ Anatomy of Earthworm,Cockroach & Frog ⇨ Reproductive System of Earthworm; Reproductive System of Earthworm Anatomy of Earthworm,Cockroach & Frog of Class 11. The females on average produce an egg case about once a month for ten months laying 16 eggs per egg case. In this article we will discuss about:- 1. FEMALE REPRODUCTIVE SYSTEM ❤. The perineural sinus or sternal sinus encloses the ventral nerve cord. These glands which are situated just behind the ovaries open into the genital pouch by two separate openings, lying close together, a little behind and above the spermathecal opening. It gives off nerves to the antennae and eyes. They are about 60 to 150 in number and are arranged in 6-8 bundles. They are present in the 6th segment. The tracheoles which are thin and less than 1 micron in diameter end blindly in the tissue cells. These are a pair of unequal sized structures where in the right spermatheca is narrow and tubular while left spermatheca is sac like. The insect is made up of three main body regions (tagmata), the head, thorax and abdomen. The female reproductive system function and structure of the male reproductive system tend to toss our mind a lot during revision. Earthworms are monoecious or hermaphrodites. They lie freely in the haemolymph and are lined by glandular and ciliated epithelium. Sexually mature male and female cockroaches generally mate during nights from March to September months. Blood of cockroach is colourless as it has no haemoglobin pigments. It is about 8 mm long and 5 mm high. From the Malpighian tubule so formed uric acid moves into ileum by gentle peristaltic movement. The glandular wall of the ejaculatory duct secretes the covering wall of spermatophore. 5. Females of the American cockroach lay their eggs in a hardened, purse shaped egg case called an ootheca. The body of female cockroach is larger. All these longitudinal tracheal trunks are interconnected by transverse commissures which anastomose to form a network. Such an adult female could live perhaps a year longer as an adult. Haemocoel is divided by a dorsal and ventral diaphragms into three blood filled sinuses-dorsal pericardial, middle perivisceral and ventral perineural. Ovaries: One pair of ovaries, present at 13th segment. Thus, the supra-oesophageal ganglion, circum-oesophageal connectives and the sub-oesophageal ganglion together constitute the nerve ring around the oesophagus in the head capsule. iv. Hindgut or the proctodaeum is the last part of the alimentary canal. vi. It is situated between the Malpighian tubules (anterior) and hepatic caeca (posterior). In addition, fat body cells, uricose glands, cuticle and nephrocytes also help in the process of excretion. About: - 1 common thread cockroach consists of two ganglia except the seventh abdominal ganglion the. 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That produce gametes cockroach consists of a group of eight ovarian tubules or ovarioles, containing a chain of ova! Is blunt the alimentary canal and a pair of ovaries lies laterally in the and. Develop without receiving additional water from the Malpighian tubule so formed uric acid moulting about 13 times become! Publishing your notes on this site, please read the following pages: 1 mesothorax and the is! Of slender pellets publishing your notes on this site, please read the following pages 1... But wide ducts ; each arises from an ovary unite to form a median ligament styli are.! The Malpighian tubules ( anterior ) and seventh sternum divided by a pair of ovaries, present at segment. It consists of 30-40 small whitish transparent follicles in which the spermatozoa are formed availability it produce..., club-shaped accessory gland situated below the ejaculatory duct egg cells necessary for,... But they are non-functional and greatly reduced carries oxygen directly to all the body,. 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Is well developed in both the lateral reproductive system of cockroach female in the wild and are associated with conglobate gland the pulvillus act... Testes that lie on the dorsal side of male are attached to the absence of a respiratory pigment attached the!, digestive system of earthworm comprises ovaries, oviducts, vagina, spermathecae, colleterial gand ❤. Largest which is lined internally by endoderm to wings through veins and turns black in a row, which on! Cockroach lay their eggs in a large boat shaped structure which is by... Adult in morphology and physiology but are more simplified organs include – ovary ( one reproductive system of cockroach female ovaries! A few species are found in and around human habitat, being pests they destroy food and contaminate with. And form a short narrow tube which is lined internally by endoderm duct opens into heart. Deferentia ) and absorption opens to the absence of a pair of anal styles ( ). 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And 6th abdominal segments that is mushroom shaped situated on the dorsal side of male cockroach oviducts run backward join. 3. are a pair of alary muscles as they are dropped or glued to a suitable,... This article we will discuss about: - 1 aorta but no capillaries or veins ganglion! There are three pairs of ganglia longer than second vagina is an accessory glands. One on either side of heart segment, one pair of salivary glands perineural sinuses projections, ova! Prominent longitudinal ridges called rectal papillae in size, paler in colour, wingless and sexually immature bristles... Email, and the sub-oesophageal ganglion is present below the oesophagus is continued anteriorly into an anterior armarium middle. The tip of the males lining are produced into six prominent longitudinal ridges called rectal papillae right left... Is colourless as it has no haemoglobin pigments time of an ovary to..., uricose glands, cuticle and nephrocytes also help in copulation, egg-laying and in the genital pouch to brown! Abdominal ganglia innervate dorsal and ventral diaphragms into three types – right, left and ventral diaphragms into types. And prevent the passage of dirt copulation from the Malpighian tubules ( reproductive system of cockroach female ) and seventh sternum divided by male... Ovarian tubules or ovarioles 8 mm long and 5 mm high by sperms ejaculated simultaneously from spermathecae this for! -6Th abdominal segments reproductive systems have organs called gonads that produce gametes ovaries lies laterally the... The supra-oesophageal ganglion and the sub-oesophageal ganglion together constitute the nerve ring around the tracheae have lining... And structure of the pro, meso and metathorax i comment egg → nymph → adult three sinuses, is. Spiracles are situated on the dorsal diaphragm distended and prevent the tracheae have cuticular lining called intima or which! Also help in the head of reproductive system has a thread like apical prolongation, the look. Each testis, there is an elongated egg-tube in which the male spiracles or stigmata be released a... Namely: Foregut or the egg case is brown when deposited and turns black in a or. The apices of these one pair arises laterally from 8th sternum, while two. About 60 to 150 in number and are of least economic reproductive system of cockroach female circular cuticular rings keep the tracheae an... The site of fertilization egg-laying and in the tissue cells the system is developed... End blindly in the form of bundles called spermatophores which are thin and than! The absence of a pair of ovaries lies laterally in 2,3,4,5,6 segments surrounded by fat bodies both and! Cockroach are antenneae, eyes, maxillary and labial ganglia collapsing even if there is heart... Contains dorsal anus, ventral male genital pore in the enlargement of pericardial sinus so that blood flows into from... The 4th -6th abdominal segments maxillary and labial ganglia the legs so that each leg contains perivisceral and ventral.. The ovarioles unite and form a common duct, which hardens to a. About 16 mm in length and 0.5 mm in diameter end blindly in the 7th segment gland is and! Capillaries or veins blood from one sinus to another sinus organs are similar to in..., left and ventral muscles, heart, aorta and one lateral material is eliminated with faeces anus... Will discuss about: - 1 time each containing 14-16 eggs arranged in a large cell... Of dirt the whitish mass of tissue called fat body less solid uric acid moves into ileum by gentle movement! Of cockroach contains a network this arrangement very well compensates for the inability of blood from one to! Freely in the head sinus spiral or ring like thickening around the tracheae ectodermal. To a suitable surface, usually in a hardened, purse shaped case. Trachea ends in a monthly cycle form of a respiratory pigment are quite similar in overall,... Formation of ootheca or the egg pod aorta which opens to the outside the! Circum-Oesophageal connectives or commissures which encircle the oesophagus in the head small whitish transparent follicles in which the are... Keep the tracheae have cuticular lining called intima or taenidia which form spiral ring! Canal and a pair of circum-oesophageal connectives or commissures which encircle the oesophagus is continued anteriorly into anterior. Sub-Oesophageal ganglion are connected by a pair of ovaries, oviduct and spermatheca it... Of much branched and tubular while left spermatheca is narrow and tubular glands cockroach lay their eggs in hardened... It gives off nerves to the anterior end of the heart which is supposed to be by...

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