Which of the following factors would cause an increase in heart rate?
A. increased parasympathetic stimulation
B. stimulation of baroreceptors in the aorta
C. increased epinephrine release from the adrenal medulla
D. increased production of atrial natriuretic factor
E. vagal stimulation
C
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Regarding the tonicity and osmolarity of solutions, which of the following statements is not true?
A. Hypoosmotic solutions are always hypotonic. B. Isotonic solutions are always isoosmotic. C. The term "tonicity" refers to the effect that a solution has on the degree of stretch or shrinking of the cell membrane. D. Hypertonic solutions are always hyperosmotic. E. The term "osmolarity" refers to the osmotic properties of a solution, regardless of its tonicity.
Muscarinic receptors are found on the effector cells innervated by the sympathetic division
Indicate whether the statement is true or false
Otosclerosis affects the
A. cochlea. B. tympanic membrane. C. auditory ossicles. D. auditory nerve.
When you wear a backpack, your center of gravity shifts in which direction?
A. up B. back C. forward D. up and back