How are signals most commonly transmitted across a synapse?
A. From soma to dendrite
B. From axon terminal to dendrite
C. From axon to axon
D. From dendrite to axon
Answer: B
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The intrinsic hand muscles move the ________.
Fill in the blank(s) with the appropriate word(s).
An inverted bell-shaped curve represents the distribution of phenotypes of a
multifactorial trait in a population. Indicate whether the statement is true or false
Depolarization of an axon is a positive feedback mechanism because ________.
A. as more sodium channels open, the membrane potential decreases B. as more sodium diffuses into the axon, the more voltage-gated sodium channels open C. as more potassium channels open, the membrane potential decreases D. as more sodium diffuses into the axon, the more voltage-gated potassium channels open
The ligamentum arteriosum is the remnant of the fetal
A) foramen ovalis. B) ductus venosus. C) ductus arteriosus. D) umbilical arteries. E) umbilical vein.