The following are steps involved in transmission at the cholinergic synapse:
1. Chemically regulated ion channels on the postsynaptic membrane are activated.
2. Calcium ions enter the axon terminal.
3. An action potential depolarizes the axon terminal at the presynaptic membrane.
4. Acetylcholine is released from storage vesicles by exocytosis.
5. Acetylcholine binds to receptors on the postsynaptic membrane.
The correct sequence for these events is
A) 2, 4, 1, 3, 5
B) 4, 2, 1, 5, 3
C) 1, 2, 3, 4, 5
D) 3, 2, 4, 5, 1
E) 2, 5, 4, 1, 3
D) 3, 2, 4, 5, 1
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This structure, present in the cow eye but not in the human eye, is a special iridescent reflecting surface that helps animals to see in low light conditions
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A) complement binding site
B) antigen binding site
C) antigenic determinant sites
D) macrophage binding site
E) antibodies
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A. Endomysium B. Epimysium C. Perimysium D. Fascia