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Daddy Varlai

Physiology Week 7-13

QuestionAnswer
An extension of the great toe, with or without fanning of the other toes, in response to stimulation of the outer margin of the sole of the foot is known as what? Babinski sign
What is a patellar reflex? An extension of the leg in response to tapping of the patellar ligament.
If the center of a reflex arc is in the brain, the response it mediates is called a ____ reflex. Cranial reflex.
The action that results from a nerve impulse passing over a reflex arc is called a ____. Reflex
Each skin surface area supplied by sensory fibers of a given spinal nerve is called___. Dermatome.
The ____ is found deep within the neck. Cervical plexus
What is the function of the Vestibulospinal? Coordination of posture/balance.
What is the function of the Spinotectal? Touch related to visual reflexes.
Distinguish between Ascending tracts and descending tracts. Ascending tracts conduct sensory impulses up the cord to the brain. Descending tracts conduct motor impulses down the cord from the brain.
Name the three important inward extensions of the dura mater. Falx cerebri, Falx cerebelli, and Tentorium cerebelli.
In neurons, membrane potentials can fluctuate above or below the RMP in response to certain stimuli. True or False? True.
What is the membrane potential maintained by a nonconducting neuron’s plasma membrane called? Resting membrane potential (RMP).
When a neuron is not conducting electrical signals, it is said to be____. Resting
A membrane that exhibits a membrane potential is said to be What? Polarizes
Neurons are remarkable among cells because they initiate and con-duct electrical signals called _____. Nerve impulses
The brainstem, like the spinal cord, performs sensory, motor, and reflex functions. True or False? True.
Created by: daddiev1976
 

 



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