During muscular contractions associated with inhalation, what would happen if intrapleural pressure were to be less than intrapulmonary pressure?
A. Lung volume would remain unchanged
B. Thoracic volume decrease with lung collapse
C. Thoracic volume increase with lung inflation
D. Thoracic volume increase with lung collapse
Answer: C
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Which statement regarding autonomic innervation of the heart is correct?
A) The release of norepinephrine (NE) and epinephrine (E) by the adrenal medulla decreases the force and degree of contraction. B) Norepinephrine released by sympathetic neurons increases the heart rate. C) Acetylcholine released by parasympathetic neurons results in increased heart rate. D) Parasympathetic release of norepinephrine at synapses in the myocardium result in an increase in stroke volume. E) Acetylcholine released by sympathetic neurons result in an increase in the force of cardiac contractions.
In general, nerves from the posterior division of the brachial plexus tend to innervate muscles that extend the parts of the upper limb.
Answer the following statement true (T) or false (F)
The combination of fibers and ground substance in supporting connective tissues is known as
A) collagen. B) cartilage. C) chondroitin. D) matrix. E) scaffold.
Which structure is responsible for the creation of long-term declarative memories?
A. Amygdala B. Hypothalamus C. Hippocampus D. Cingulate gyrus E. Thalamus