BIO252 weeks 3 and 4-Test with Complete Solutions
A disease that damages the cells of the anterior gray horn will Correct Ans-Cause paralysis
or weakness in skeletal muscles
Which spinal cord plexus supplies the abdominal wall? Correct Ans-
While playing rugby, Sonny is tackled hard. As he tries to get up, he finds that he has difficulty
flexing and adducting his left thigh and extending his left leg. Which nerve innervating the
lower limb may be damaged? Correct Ans-Femoral Nerve
Which of the following conveys sensory information to the brain and spinal cord? Correct
Ans-The afferent division of the peripheral nervous system
An unlearned and involuntary but predictable motor response to a stimulus that is rapid and
does not involve any processing by the brain: Correct Ans-Spinal Reflex
, BIO252 weeks 3 and 4-Test with Complete Solutions
A reflex that causes reciprocal activation of the antagonist muscle is the Correct Ans-
crossed-extensor
What do neurons in the precentral gyrus do? Correct Ans-They allow conscious control of
skilled voluntary muscle movements
What are the ascending tracts and what do they do? Correct Ans-White matter that
transmits sensory information to the brain
Which of the following is not considered a region of the spinal cord? Correct Ans-Pelvic
The spinal cord is housed within which structure? Correct Ans-The vertebral canal
A disease that damages the cells of the anterior gray horn will Correct Ans-Cause paralysis
or weakness in skeletal muscles
Which spinal cord plexus supplies the abdominal wall? Correct Ans-
While playing rugby, Sonny is tackled hard. As he tries to get up, he finds that he has difficulty
flexing and adducting his left thigh and extending his left leg. Which nerve innervating the
lower limb may be damaged? Correct Ans-Femoral Nerve
Which of the following conveys sensory information to the brain and spinal cord? Correct
Ans-The afferent division of the peripheral nervous system
An unlearned and involuntary but predictable motor response to a stimulus that is rapid and
does not involve any processing by the brain: Correct Ans-Spinal Reflex
, BIO252 weeks 3 and 4-Test with Complete Solutions
A reflex that causes reciprocal activation of the antagonist muscle is the Correct Ans-
crossed-extensor
What do neurons in the precentral gyrus do? Correct Ans-They allow conscious control of
skilled voluntary muscle movements
What are the ascending tracts and what do they do? Correct Ans-White matter that
transmits sensory information to the brain
Which of the following is not considered a region of the spinal cord? Correct Ans-Pelvic
The spinal cord is housed within which structure? Correct Ans-The vertebral canal
