Which of the following is not true of the vascular layer of the eye?
A) provides a route for blood vessels and lymphatics that supply tissues of the eye
B) regulates the amount of light entering the eye
C) secretes and reabsorbs the aqueous humor
D) controls the shape of the lens
E) contains photoreceptors
Answer: E
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Which portion of the temporal bone houses the structures of the internal ear?
A) squamous B) petrous C) styloid D) zygomatic E) mastoid
Aldosterone is a steroid hormone that is produced only in ____________
Fill in the blank with the correct word.
What is the role of interferon in defense against disease?
A) protects cells that have not yet been infected by viruses B) protects cells that have not yet been infected by bacteria C) activates the complement mechanism D) activates the inflammatory process
Describe synaptic fatigue
A) Synaptic fatigue occurs in an axon terminal when neurotransmitters are released into the synaptic cleft faster than they can be reabsorbed or recycled. B) Synaptic fatigue occurs when not enough ATP is present to cause the release of neurotransmitters out of the axon terminal. C) Synaptic fatigue occurs during oxygen deficiency and the synapse fails to bind neurotransmitters. D) Synaptic fatigue occurs during starvation and not enough neurotransmitters are synthesized for normal synaptic function. E) Synaptic fatigue occurs when the axon terminal can no longer receive action potentials from the axon hillock due to overstimulation.