Assertion (A): | Testes in males and ovaries in females are the primary sex organs. |
Reason (R): | The primary sex organs are those that are located within the pelvic cavity and the secondary sex organs are the external genitalia. |
1. | Both (A) and (R) are True and (R) correctly explains (A). |
2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
1. | Ovaries are the primary female sex organs that produce the female gamete and several gonadotropins. |
2. | The ovaries are located one on each side of the lower abdomen |
3. | Each ovary is about 2 to 4 cm in length and is connected to the pelvic wall and uterus by ligaments. |
4. | Each ovary is covered by a thin epithelium which encloses the ovarian stroma. The stroma is divided into two zones – a peripheral cortex and an inner medulla. |
1. | These are female accessory ducts. |
2. | Each fallopian tube is about 10-12 cm long and extends from the periphery of each ovary to the uterus. |
3. | The part closer to the ovary is the funnel-shaped infundibulum, which possesses finger-like projections called fimbriae. |
4. | The oviducts are lined by brush bordered epithelium. |
Statement I: | The part of the oviducts (fallopian tubes) closer to the ovary is the funnel-shaped infundibulum. |
Statement II: | The last part of the oviduct, isthmus, has a narrow lumen and it joins the uterus. |
1. | Statement I is correct; Statement II is incorrect |
2. | Statement I is correct; Statement II is correct |
3. | Statement I is incorrect; Statement II is incorrect |
4. | Statement I is incorrect; Statement II is correct |
The birth canal is formed by:
1. Vagina alone
2. Vagina and the cervix
3. Vagina, cervix and uterus
4. Vagina, cervix, uterus and oviducts
1. | Shape of non-pregnant uterus | Inverted pear like |
2. | Perimetrium of uterus | Outermost thick, tough and inelastic ligament |
3. | Myometrium of uterus | Middle thick layer of smooth muscle |
4. | Endometrium of uterus | Inner glandular layer |
Column I | Column II | ||
A. | Birth canal | P. | oviducts (fallopian tubes), uterus and vagina |
B. | Female accessory ducts | Q. | cervical canal and vagina |
C. | Myometrium | R. | undergoes cyclical changes during menstrual cycle |
D. | Endometrium | S. | exhibits strong contraction during delivery of the baby |
A | B | C | D | |
1. | P | Q | R | S |
2. | P | Q | S | R |
3. | Q | P | R | S |
4. | Q | P | S | R |
1. | This ensures dumping of extra genetic material |
2. | This ensures nutrition for the early embryo |
3. | This ensures easy passage of the released oocyte in the oviduct |
4. | This ensures equal holoblastic cleavage after fertilisation |
1. | Primordial follicle | 2. | Primary follicle |
3. | Secondary follicle | 4. | Tertiary follicle |
1. | primary follicles with primary oocytes arrested at Meiosis I |
2. | primary follicles with primary oocytes arrested at Meiosis II |
3. | secondary follicles with secondary oocytes arrested at Meiosis I |
4. | secondary follicles with secondary oocytes arrested at Meiosis II |