Question at position 2 What is the primary function of the bulbourethral glands (Cowper's glands) in the male reproductive system?Activation of spermProduction of seminal fluidSecretion of lubricating mucusSperm maturationSperm storage单项选择题
A
Activation of sperm
B
Production of seminal fluid
C
Secretion of lubricating mucus
D
Sperm maturation
E
Sperm storage

Question

Question at position 2 What is the primary function of the bulbourethral glands (Cowper's glands) in the male reproductive system?Activation of spermProduction of seminal fluidSecretion of lubricating mucusSperm maturationSperm storage单项选择题

A

Activation of sperm

B

Production of seminal fluid

C

Secretion of lubricating mucus

D

Sperm maturation

E

Sperm storage

BlackTom AI · Accepted Answer

Here is a step-by-step analysis of each option for the question about the bulbourethral (Cowper's) glands.

Option 1: Activation of sperm. This is not the primary role of Cowper's glands. Activation of sperm more closely relates to factors in semen and the female reproductive tract, or to enzymes and capacitation processes that occur later in the reproductive pathway. The Cowper's glands do not directly activate sperm.

Option 2: Production of seminal fluid. While the seminal fluid is produced by multiple glands (including the seminal vesicles and prostate), the Cowper's glands contribute a tiny portion to the seminal fluid: their main secretion is not responsible for the bulk of seminal fluid. Therefore, this option overstates their role.

Option 3: Secretion of lubricating mucus. This is the classic and widely accepted function of the Cowper's glands. They secrete a clear viscous mucus prior to ejaculation, known as pre-ejaculate, which lubricates the urethra and can neutralize residual acidity to protect sperm during ejaculation. This aligns with anatomical and physiological descriptions of Cowper's glands.

Option 4: Sperm maturation. Sperm maturation occurs primarily in the epididymis, not in the bulbourethral glands. The glands do not modify sperm; their secretion serves a lubrication and cleansing function prior to ejaculation.

Option 5: Sperm storage. Sperm storage is a function associated with the epididymis and, to some extent, with the testes’ production of spermatozoa in the seminiferous tubules. The bulbourethral glands do not store sperm.

In summary, among the options given, the statement that best matches the known function of the bulbourethral glands is the secretion of lubricating mucus, which provides lubrication and helps neutralize residual acidity in the urethra prior to ejaculation.

Question at position 2 What is the primary function of the bulbourethral glands (Cowper's glands) in the male reproductive system?Activation of spermProduction of seminal fluidSecretion of lubricating mucusSperm maturationSperm storage单项选择题

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