Which neurotransmitter is released at the post-ganglionic synapse of parasympathetic nerves?
a. acetylcholine
b. epinephrine
c. dopamine
d. mu
.A
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This is the strong, fibrous connective tissue covering the bone.
A. Epiphyses B. Periosteum C. Diaphysis D. Endosteum
Which of the following is NOT true of the anatomy of the sacrum?
A. The median sacral crest consists of the fused spinous processes of the sacral vertebrae. B. The inferior end of the sacrum articulates with the coccyx. C. Nothing passes through the sacral foramina; they are membrane-covered openings. D. The sacral canal is a continuation of the vertebral canal. E. All of these are true of the anatomy of the sacrum.
A graded potential in a membrane results in an electric current along an adjacent area of membrane and this current diminishes with distance from the site of the initial potential change
Indicate whether the statement is true or false.
The movement of molecules against their concentration gradient is called
A. facilitated diffusion. B. active transport. C. diffusion. D. endocytosis. E. osmosis.