The Female Reproductive System

p represents the Oogonia. Oogonia are the primordial germ cells that undergo mitotic divisions to increase in number.
q represents the Primary Oocyte. Oogonia differentiate into primary oocytes, which then enter meiosis I.
r represents the Secondary Oocyte. After meiosis I, the primary oocyte divides into a secondary oocyte and a first polar body.
s represents the Ovum. The secondary oocyte undergoes meiosis II to form an ovum (egg cell) and a second polar body.

The correct answer is (B) p - Oogonia, q - Primary Oocyte, r - Secondary Oocyte, s - Ovum.

1. Fallopian Tube Structure: - Infundibulum: Funnel-shaped opening near ovary with fimbriae - Ampulla: Widest, longest section where fertilization typically occurs - Isthmus: Narrow section connecting to uterus

2. Normal Ovum Pathway: (1) Released from ovary → (2) Captured by infundibulum → (3) Travels through ampulla → (4) Passes isthmus → (5) Enters uterine cavity

3. Blockage at Ampulla Effect: A blockage in the ampullary region would prevent the ovum's movement from the infundibulum (where it enters the tube) toward the isthmus. The ampulla is located between the infundibulum and isthmus.

Thus, the correct answer is (B) Infundibulum to Isthmus, as this represents the normal direction of ovum movement that would be obstructed by an ampullary blockage.

The clitoris is a sensitive, erectile structure in the female genitalia. It is located at the junction of the labia minora and above the urethral opening.

• The clitoris is a highly sensitive organ, and its main function is sexual arousal.
• It is made up of erectile tissue similar to the male penis and contains many nerve endings, making it the most sensitive part of the female reproductive system.

Other options:

• Vagina: The vagina is the muscular canal that connects the uterus to the external genitalia; it is not the finger-like structure described in the question.
• Hymen: The hymen is a thin membrane that partially covers the vaginal opening, not a finger-like structure.
• Mons pubis: The mons pubis is the fatty tissue located above the pubic bone and is not related to the finger-like structure described.

The correct answer is (D) : Clitoris.