Answer
443.4k+ views
Hint: In the female frog, there is a structure near the ureters. It is a part of the oviduct but is not coiled like an oviduct. It opens in the cloaca through its apertures and stores ova temporarily before their release.
Complete answer:
The reproductive system of the female frog consists of two oviducts and two ovaries. The posterior end of two oviducts opens into cloaca separately. Just before entering the cloaca, each oviduct forms a thin-walled enlargement that is not coiled like the rest of the part of the oviduct. This portion of the oviduct is known as ovisac. The eggs or ova of the female frog are collected here and stored temporarily before they are laid. A diagram of the female reproductive system has been shown below, the ovisac near the ureter and other parts of the reproductive and urinary system of a female frog can be seen in the diagram.
The two ovaries lie near the kidneys and are attached to the kidneys by mesovarium. This is a double fold of peritoneum. The ovary is a multilobed and irregularly folded structure, quite large and hollow sac with greyish or blackish appearance. The size of ovaries in the female frog varies considerably in different seasons as in breeding season they become greatly enlarged.
So, the correct answer is ‘Ovisac’.
Note:
-The uterus is found only in those animals which give birth to young ones and the term viviparous is used for these animals. In such animals, fertilization takes place internally and the fertilized egg is implanted in the uterus where it develops till birth. Frog is an oviparous animal because it lays eggs that develop outside the body after being fertilized.
-Fallopian tubes are also called uterine tubes and these are found only in female mammals. These tubes provide a passageway from the ovary to the uterus for the egg. These are also not a part of the female reproductive system of the frog.
Complete answer:
The reproductive system of the female frog consists of two oviducts and two ovaries. The posterior end of two oviducts opens into cloaca separately. Just before entering the cloaca, each oviduct forms a thin-walled enlargement that is not coiled like the rest of the part of the oviduct. This portion of the oviduct is known as ovisac. The eggs or ova of the female frog are collected here and stored temporarily before they are laid. A diagram of the female reproductive system has been shown below, the ovisac near the ureter and other parts of the reproductive and urinary system of a female frog can be seen in the diagram.
![seo images](https://www.vedantu.com/question-sets/9385ece9-cf9f-409b-acad-758ee3fff7b44038327043643026873.png)
The two ovaries lie near the kidneys and are attached to the kidneys by mesovarium. This is a double fold of peritoneum. The ovary is a multilobed and irregularly folded structure, quite large and hollow sac with greyish or blackish appearance. The size of ovaries in the female frog varies considerably in different seasons as in breeding season they become greatly enlarged.
So, the correct answer is ‘Ovisac’.
Note:
-The uterus is found only in those animals which give birth to young ones and the term viviparous is used for these animals. In such animals, fertilization takes place internally and the fertilized egg is implanted in the uterus where it develops till birth. Frog is an oviparous animal because it lays eggs that develop outside the body after being fertilized.
-Fallopian tubes are also called uterine tubes and these are found only in female mammals. These tubes provide a passageway from the ovary to the uterus for the egg. These are also not a part of the female reproductive system of the frog.
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