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SCI221 wk 7-13

QuestionAnswer
When an impulse reaches a synapse: chemical transmitters are released.
Stimulus-gated channels open in response to: sensory stimuli.
What would the result be if the phrenic nerve received an impulse from the cervical plexus? The diaphragm would stop contracting.
Impulses from the _____ play a part in arousing or alerting the cerebrum. thalamus
Which of the following is a function of glucagon? Tends to decrease blood glucose concentrations
When a small amount of one hormone allows a second hormone to have its full effect, the phenomenon is called: permissiveness
Which of the following is(are) involved in determining a person’s total blood volume? All of the above
In the extrinsic pathway of stage 1 of the clotting mechanism, chemicals released from damaged tissues trigger the cascade of events that ultimately result in the formation of prothrombin activator.
The term used to describe the collection of mechanisms that influence the circulation of blood is: hemodynamics
The vagus is said to act as a “brake” on the heart. This situation is called vagal inhibition.
Created by: dlor1998
 

 



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