Which of the Following Is the Most Direct Result of Depolarising

question 9

Multiple Choice

Which of the following is the most direct result of depolarising the presynaptic membrane of an axon terminal?

• A) Voltage-gated calcium channels in the membrane open.
• B) Synaptic vesicles fuse with the membrane.
• C) Ligand-gated channels open, allowing neurotransmitters to enter the synaptic cleft.
• D) An EPSP or IPSP is generated in the postsynaptic cell.

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Definitions:

Bulbourethral Glands

Small glands located near the base of the penis, involved in secreting a fluid that lubricates and neutralizes acidity during sexual arousal.

Seminal Vesicles

are paired glands located near the male bladder that produce a significant portion of the fluid constituting semen.

Prostate Gland

A gland in males surrounding the neck of the bladder and urethra, involved in the production of seminal fluid.

Semen

A fluid that is emitted from the male reproductive tract and contains sperm.