The two lateral ventricles in the cerebral hemispheres are separated by the ________
A) septum pellucidum B) corpus callosum
C) mammillary body D) fornix
Answer: A
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Which of the following types of muscle tissue contract when excited by their own autorhythmic muscle fibers?
a) cardiac muscle b) slow twitch oxidative skeletal muscle c) multi-unit smooth muscle d) fast twitch glycolytic skeletal muscle e) All of these choices are correct.
Which of the following statements regarding the hepatic portal system is false?
A) Its major vessels are the superior mesenteric, inferior mesenteric, and splenic veins. B) It consists of a vein connecting two capillary beds together. C) It carries nutrients, toxins, and microorganisms to the liver for processing. D) It branches off of the inferior vena cava.
Which of the following statements regarding hearing is TRUE?
A. Low-pitched tones selectively cause vibration of the basilar membrane at a point closer to the oval window than high-pitched tones do. B. Sound is amplified as it is conducted from the oval window to the tympanic membrane. C. The pitch of sounds is conveyed by the amplitude of the vibration of the oval window. D. The loudness of a sound is conveyed by the frequency of action potentials generated in the cochlear nerve.
Consider a cell with a total internal solute concentration of 0.9%. Placing the cell in which bath solution would result in creation of the greatest osmotic pressure in the cell?
A. 0.5% NaCl B. 0.9% NaCl C. 1.2% NaCl