Question

Vasa efferentia are the ductules leading from

• A. rete testis to vas deferens
• B. Testicular lobules to rete testis
• C. epididymis to urethra
• D. vas deferens to epididymis

Answer 1

The correct option is A

rete testis to vas deferens

The correct option is A.

Explanation of correct option:

1. The rete testis connects the seminiferous tubules to a surviving section of the primordial mesonephric kidney duct termed the Wolffian duct, which develops into the vas deferens and transports sperm from the testis to the urethra under the influence of testosterone.
2. The vasa efferentia connects the rete testis to the epididymis and then to the vas deferens.
3. The sperm produced in the seminiferous tubules are transported through accessory ducts.

Explanation of incorrect options:

Option B:

1. Seminiferous tubules in testicular lobules open into rete testis.
2. The rete testis separates from the vasa efferentia.

Option C:

1. This tube holds the sperm before transporting them out of the scrotal sac.
2. Between the epididymis and the urethra is the vas deferens, which link them.

Option D:

1. The epididymis is the tube that transports sperm from the testicles to the uterus.
2. Vas deferens is a Latin phrase that means "there is a difference."
3. The sperm is kept in this tube, which then transports the sperm out of the scrotal sac.
4. Between the epididymis and the urethra is the vas deferens, which link them.

Final answer: Vasa efferentia are the ductules leading from rete testis to vas deferens.