The action potential is conducted into a skeletal muscle fiber by
A) motor end plates.
B) neuromuscular junctions.
C) transverse tubules.
D) triads.
E) sarcoplasmic reticulum.
C
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The medial and lateral condyles of the femur fit into what part of the patella?
a) Articular facets b) Base of the patella c) Tibiofemoral crest d) Apex of the patella e) None of these choices are correct.
Which layer of the vessel wall facilitates vasoconstriction and vasodilation?
A. The tunica externa B. The tunica adventitia C. The tunica interna D. The tunica media E. The tunica sclerosa
Explain how a chemical odorant is transduced into a neural signal
What will be an ideal response?
Down syndrome (trisomy-21) results from ________.
A. an autosomal recessive allele B. a sex-linked mutation C. a mutagen D. nondisjunction E. a teratogen