Multiple sclerosis (MS) is a disease in which the myelin sheaths are destroyed in the brain and spinal cord. With what process does this interfere and what would be the consequences?
What will be an ideal response?
Myelin sheaths allow the action potential to propagate more quickly along the length of an axon during saltatory conduction. Demyelination results in slower propagation and even permanent cessation of nerve impulse transmission.
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Spinal shock is a permanent loss of some of the spinal cord's functions.
Answer the following statement true (T) or false (F)
While driving to school to take an anatomy test, a college student gets in a car accident and breaks her collar bone on the steering wheel. Which of the following muscles is the most likely damaged in this injury?
A) subclavius B) subscapularis C) infraspinatus D) teres minor E) deltoid
This figure shows the stomach. Which number indicates the fundus?
A. 8 B. 1 C. 2 D. 4 E. 7
Pain fibers from the apex (tip) of the tongue travel in the ____________ nerve.
A. lingual B. hypoglossal C. chorda tympani D. glossopharyngeal E. inferior alveolar