Question

Which of the following structure is not a part of the male reproductive system ?

• A. Infundibulum
• B. Rete testis
• C. Epididymis
• D. Vasa efferentia

Hint:

• The edge of the infundibulum possesses finger-like projections called fimbriae, which function to collect the secondary oocyte from the ovary during ovulation.

• Memory aid for the male sperm pathway: Seminiferous tubules \(\rightarrow\) Rete testis \(\rightarrow\) Vasa efferentia \(\rightarrow\) Epididymis \(\rightarrow\) Vas deferens (mnemonic: Some Rete Vessels Enter Vas).

Answer 1

The Correct Option is A

Concept:

• Male Reproductive System: Comprises primary sex organs (a pair of testes), accessory ducts, accessory glands, and external genitalia.

• Male Accessory Ducts: These ducts store and transport sperm from the testes to the outside through the urethra. The pathway includes: itemize

• Rete testis

• Vasa efferentia

• Epididymis

• Vas deferens

Female Reproductive System Accessory Ducts: Include the fallopian tubes (oviducts), uterus, and vagina. itemize

Step 1: Analyze the male accessory ducts and their pathways
Sperm produced in the seminiferous tubules of the testes travel through a specific network of ducts.

• The tubules open into the

rete testis.

• From the rete testis, sperm leave the testis through the

vasa efferentia.

• The vasa efferentia open into the

epididymis, which is located along the posterior surface of each testis and is responsible for sperm maturation and temporary storage.
Therefore, options (B), (C), and (D) represent essential components of the male reproductive tract.

Step 2: Analyze the female reproductive tract structures
The fallopian tube (oviduct) in females is divided into three main anatomical regions:

• Infundibulum: The funnel-shaped portion closest to the ovary.

• Ampulla: The wider, middle portion where fertilization typically occurs.

• Isthmus: The narrow, final portion that connects directly to the uterus.

Step 3: Identify the non-male structure
Because the infundibulum is a specialized section of the female fallopian tube, it does not exist in the male anatomy. This corresponds to option (A).