Category: Uncategorized

EXTRA CREDIT (2 points) List one similarity and one difference between the items listed below. Categorizations (e.g. “both are bones”) and locations (e.g. “found in the brain”) are not acceptable as answers. Your answer must address something specific to the items you are comparing. Vague answers (e.g. “contains cells”) will receive less or no credit. posterior horn of spinal cord & posterior root of spinal cord

EXTRA CREDIT (2 points) List one similarity and one difference between the items listed below. Categorizations (e.g. “both are bones”) and locations (e.g. “found in the brain”) are not acceptable as answers. Your answer must address something specific to the items you are comparing. Vague answers (e.g. “contains cells”) will receive less or no credit. posterior horn of spinal cord & posterior root of spinal cord

A contractor fell off a rooftop, fracturing their second thoracic vertebra and badly dislocating several bones in their right ankle. The diagram shows a superior view of his spinal cord with the damaged portion shaded. Indicate whether each statement would apply to this patient by answering T (true) or F (false). The patient will be able to flex their arm at the elbow on both sides. [armmove]  The patient will be able to extend their right knee on command.[legmove]  The patient will have a knee jerk reflex on the right.[reflex]  The patient will be able to feel a light touch to the sole of their right foot.[legtouch]  The patient will feel the pain of their injured right ankle.[legcold] 

A contractor fell off a rooftop, fracturing their second thoracic vertebra and badly dislocating several bones in their right ankle. The diagram shows a superior view of his spinal cord with the damaged portion shaded. Indicate whether each statement would apply to this patient by answering T (true) or F (false). The patient will be able to flex their arm at the elbow on both sides. [armmove]  The patient will be able to extend their right knee on command.[legmove]  The patient will have a knee jerk reflex on the right.[reflex]  The patient will be able to feel a light touch to the sole of their right foot.[legtouch]  The patient will feel the pain of their injured right ankle.[legcold] 

Compare the values below. Which is greater, or are the two values equal? A. Activity of muscle spindles in the quadriceps when hip is flexed and knee extended.B. Activity of muscle spindles in the quadriceps when hip is extended and knee is flexed.

Compared to type I (slow oxidative) skeletal muscle fibers, how are type II b (fast-glycolytic) skeletal-muscle fibers different?  

Compare the values below. Which is greater, or are the two values equal? A. Activity of muscle spindles in the quadriceps when hip is flexed and knee extended.B. Activity of muscle spindles in the quadriceps when hip is extended and knee is flexed.

If there were no sodium leak channels in the plasma membrane of a neuron (but all other ion channels remained unchanged), then the resting membrane potential of a neuron would be… 

Which functional class of neurons lies entirely within the central nervous system?  

When a neurotransmitter causes the opening of chemically gated potassium channels on the postsynaptic neuron, the postsynaptic potential that results is an…