★ Must-know
The three parts are:
During passage through the epididymis, sperm mature, become motile and physiologically active, and are then temporarily stored in the tail before entering the vas deferens.
Further detail
Head → body → tail: maturation, passage, storage
1. Regarding the structure and function of the epididymis, which statements are correct?
2. Which statements accurately describe ejaculatory duct formation and termination?
3. Regarding the male urethra, which statements are correct?
What is the epididymis?
A highly convoluted tube about 6 metres long resting on and beside the testis.
How many parts does the epididymis have?
Three parts: head, body, and tail.
What happens to sperm during passage through the epididymis?
They mature, become motile and physiologically active, then are stored in the tail.
Where are sperm temporarily stored before entering the vas deferens?
In the tail of the epididymis.
How does the head of the epididymis receive sperm?
From the rete testis through the vasa efferentia.
What is the function of the body of the epididymis?
It allows sperm to pass onward.
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