Sheet of nerve cells that forms a rounded ridge on the surface of the cerebral cortex:
A) fissure
B) ventricle
C) cerebral aqueduct
D) gyrus
E) sulcus
Ans: D) gyrus
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The major mixing movement in the small intestine is accomplished by
A. ring contractions. B. churning. C. segmentation. D. peristalsis.
The multiple thin, branched structures on a neuron whose main function is to receive incoming signals are the
A) somata. B) cell bodies. C) dendrites. D) axons. E) None of the answers are correct.
Which of the following statements regarding central cord syndrome is correct?
A) The patient typically presents with greater loss of function in the upper extremities than in the lower extremities. B) Central cord syndrome is almost always associated with a vertebral fracture and has an overall poor prognosis. C) Patients with cervical spondylosis or stenosis are at a lower risk for central cord syndrome following an injury. D) Central cord syndrome typically causes complete paralysis of the lower extremities and decreased proprioception.
The region of the sarcomere containing the thick and thin filaments is the
A) Z line. B) M line. C) H band. D) A band. E) I band.