Propagation of an action potential to the axon terminal triggers the opening of what kind of voltage-gated channels?

a. calcium
b. sodium
c. potassium
d. acetylcholine
e. dopamine


a

Anatomy & Physiology

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If an individual was lacking a key amino acid and so couldn't make and release substance P, what would happen?

A. There would be a surge in activity in neurons that synthesize opiate neurotransmitters. B. There would be increasing sensation of pain generated by the brain, with or without any damage to structures in the periphery. C. They would experience a lack of sensation in some pain pathways. D. There would be an increase in activity in neurons that detect painful stimuli in internal organs. E. Synaptic activity in afferent neurons associated with pain receptors can be inhibited by axon-axon synapses with neurons from descending pathways.

Anatomy & Physiology

Which of the following joints is located between the spinal vertebrae?

A) pivot B) symphysis C) gomphosis D) hinge E) synchondrosis

Anatomy & Physiology

Opening a potassium channel during the resting potential would cause potassium ions to move along their concentration gradient but against the electrical gradient

Indicate whether the statement is true or false

Anatomy & Physiology

Name the elements of the hearts conducting system in order beginning with the pacemaker

What will be an ideal response?

Anatomy & Physiology