A colonoscopy is a common diagnostic tool to check for colorectal cancer. Sometimes an investigation of the distal segment of the colon is all that is needed. What is the name of this distal segment of the colon?
A. cecum
B. mesocolon
C. sigmoid
D. ileum
Ans: C. sigmoid
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Intrinsic and extrinsic movements of the tongue are controlled by the ________ cranial nerves
A) vagus B) hypoglossal C) facial D) accessory E) trochlear
If neuron X causes hyperpolarization of neuron Z but neuron Y causes depolarization of neuron Z, what change would you expect in neuron Z if it is stimulated by both X and Y simultaneously?
a. a significant increase in membrane potential b. a significant decrease in membrane potential c. temporal summation leading to an impulse on Z d. simultaneous influx and efflux of cations or simultaneous influx of cations and efflux of anions e. an increase in the resting membrane potential
During cerebrovascular accidents, glutamate released by damage neurons binds to ____ receptors of neighboring, healthy neurons, thus, initiating apoptosis
a. acetylcholine b. calcium c. epinephrine d. NMDA e. serotonin
The _____________ nerve innervates both the adductor longus and gracilis muscles.
Fill in the blank(s) with the appropriate word(s).