click below
click below
Normal Size Small Size show me how
Brazil Shepherd
Physiology Weeks 7-13
| Question | Answer |
|---|---|
| In a myelinated neuron, the impulse can travel under the myelin between nodes of Ranvier. | True |
| What mechanism quickly terminates the action of a neurotransmitter once it binds to its postsynaptic receptor? | Neurotransmitter molecules are transported back into synaptic knobs. |
| Which of the following statements about amino acid neurotransmitters is incorrect? | They are all inhibitory neurotransmitters. |
| The somatic motor system includes all the _____ motor pathways _____ the CNS. | Voluntary; outside |
| Which of the following is not an example of sympathetic stimulation | Dilation of skeletal muscle blood vessels |
| The last step in the nonsteroid hormone mechanism of action is: | cAMP is formed. |
| Which are the two baroreceptors that are located near the heart? | aortic baroreceptors and carotid baroreceptors |
| Which of the following is a powerful poison that acts directly on any cell and quickly kills it? | lymphotoxin |
| When carbon dioxide dissolves in water, some of the carbon dioxide molecules associate with water to form | carbonic acid. |
| Which of the following is not one of the openings that must be blocked when food moves from the pharynx into the esophagus? Oropharynx | Oropharynx |