Which of the following statements about acetylcholine is correct?
A. Acetylcholine binds to nicotinic and muscarinic receptors.
B. Acetylcholine binds to adrenergic receptors.
C. Acetylcholine synthesis is catalyzed by acetylcholinesterase
D. Acetylcholine is the neurotransmitter released by most sympathetic postganglionic neurons.
E. Acetylcholine is generally transported back into presynaptic nerve terminals without being enzymatically degraded.
A
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In type 2 diabetes, insulin levels are frequently normal, yet the target cells are less sensitive to the effects of insulin. This suggests that the target cells
A) may have a defect in their signal transduction pathway. B) are impermeable to insulin. C) have adequate internal supplies of glucose. D) cannot convert insulin to an active form. E) None of these answers are correct.
Define secondary immune response
What will be an ideal response?
Define metastasis
What will be an ideal response?
Cushing's disease results from:
A) hyposecretion of insulin. B) hyposecretion of epinephrine. C) hypersecretion of aldosterone. D) hypersecretion of cortisol.