Opening either a chemically-gated Na+ channel or a chemically-gated K+ channel during the resting potential would cause
a. an impulse to be propagated
b. a graded potential
c. an action potential
d. the membrane's potential to becomes more negative
e. threshold voltage will be reached
B
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Which is an accurate description of the cortical association areas?
A. They are all found in the parietal lobe of the cerebral cortex. B. They integrate multiple types of sensory information and are responsible for complex processing of sensory information. C. They are found deep in the cerebrum, surrounding the thalamus. D. They are the cortical locations where primary sensory information first arrives from specific ascending pathways. E. Their main input is sensory information arriving along neurons that project directly from the thalamus.
The ________ nuclei within the gray matter of the spinal cord send nerve impulses to skeletal muscles.
A. autonomic motor B. somatic motor C. somatic sensory D. visceral sensory
Thigh muscles that attach to the medial side of the pelvis ________ the thigh at the hip joint.
A. adduct B. flex C. abduct D. abduct and rotate E. extend
An electroencephalogram (EEG) is a recording of an action potential from a single active neuron.
Answer the following statement true (T) or false (F)