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Thamar Pagunsan
Physiology Weeks 7-13
The fastest nerve fibers in the body can conduct an impulse that is how much faster than the slowest fibers in the body? | Almost 300 times faster |
Acetylcholine is in the same class of neurotransmitters as: serotonin, histamine, dopamine, none of the above | none of the above |
If the dorsal root ganglia of the spinal nerve were destroyed, a person would lose _____ related to that pathway. | sensory perception |
The vomiting reflex is mediated by the: | medulla. |
A mixed nerve is one that: | carries both sensory and motor fibers. |
Impulses from the _____ play a part in arousing or alerting the cerebrum. | thalamus |
Norepinephrine is liberated at: | most sympathetic postganglionic nerve endings. |
The cerebellum performs all of the following functions except: coordinates control of muscle action, helps control posture, controls cardiac function, controls skeletal muscles to maintain balance. | controls cardiac function. |
When you are looking at a large green field, which cones would be sending the green wavelength to the brain? | M |
The immediate effect of a steroid hormone on a cell is the: | transcription of RNA. |
The sensors that provide feedback information to the medullary rhythmicity area are the | central chemoreceptors and peripheral chemoreceptors. |
Which of the following would have the greatest accelerating effect on the dissociation of oxygen from hemoglobin? | Decreased PO2 and increased PCO2 |
Which blood vessel carries absorbed food from the GI tract to the liver? | Portal vein |
The hormone that stimulates the gallbladder to release bile is: | cholecystokinin. |