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Weeks 8-13
Physiology Weeks 8-13
| Question | Answer |
|---|---|
| When a pulse reaches a synapse: | Chemical transmitters are released |
| Which is true of a neuron with a resting potential? | The sodium pump has moved Na+ to the outside of the plasma membrane |
| A term commonly used as a synonym for action potential is: | Nerve impulse |
| Norepinephrine is liberated at: | Most sympathetic postganglionic nerve endings |
| Audition is a function of the ________ lobe | Temporal |
| When a small amount of one hormone allows a second hormone to have it's full effect, the phenomenon is called: | Permissivness |
| The clear and potassium-rich fluid that fills the labyrinth is: | Endolymph |
| What is the functional significance of large areas of cardiac muscle being electronically coupled to form a single functional syncytium? | Because they form a syncytium, muscle cells cannot summate contraction to produce tetanus, and thus do not fatigue |
| Recognition of antigens by antibodies occurs when an: | Antigens epitopes fit into and bind to an antigen molecules antigen-binding site. |
| Memory cells: | Become plasma cells when exposed to an antigen |
| Which blood vessel carries absorbed food from the GI tract to the liver? | Hepatic portal veins |