An actively contracting muscle will cause local temperature to rise and will produce acidic molecules. Warmth and lower pH cause the oxygen-hemoglobin saturation curve to shift ________ reflecting that hemoglobin releases ________ oxygen.
A. right; more
B. left; more
C. left; less
D. right; less
Answer: A
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The corticospinal system
a. consists of fibers originating in the primary motor cortex and terminating on motor neurons b. involves the motor regions of the cortex, cerebellum, basal nuclei, and thalamus c. is primarily concerned with regulation of body posture d. has characteristics a and b e. has characteristics b and c
Prolactin is secreted from the ________ gland, and its levels ________ during pregnancy.
A. corpus luteum; increase tenfold B. anterior pituitary; increase tenfold C. hypothalamus; double D. mammary; double
The lining of the nose consists of _______ membrane
Fill in the blank(s) with correct word
Binding of the neurotransmitter to its receptor causes the membrane to __________.
A. Either depolarize or hyperpolarize B. Depolarize C. Hyperpolarize