Why does botox diminish frown lines?
A. It blocks acetylcholine receptors.
B. It blocks sodium channels in motor neurons.
C. It blocks the release of acetylcholine from motor neurons.
D. It blocks the release of calcium from the sarcoplasmic reticulum.
E. It blocks the binding site for myosin heads.
C. It blocks the release of acetylcholine from motor neurons.
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At the bifurcation of the aorta in the pelvic region, the ________ artery arises to supply the sacrum and coccyx.
A. median sacral B. lumbar C. femoral D. posterior intercostal E. subclavian
Preparing the body for the "fight-or-flight" response is the role of the ________.
A) sympathetic nervous system B) cerebrum C) parasympathetic nervous system D) somatic nervous system
Thin filaments are mostly made of the protein
What will be an ideal response?
Groups of related nerve cell bodies located outside of the central nervous system are called _____.
A. tracts B. plexus C. nerves D. ganglia