The parasympathetic division of the autonomic nervous system ________.
A. utilizes acetylcholine as a postganglionic neurotransmitter
B. includes the adrenal medulla
C. has a relatively short preganglionic neuron
D. utilizes norepinephrine as a postganglionic neurotransmitter
Answer: A
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Compare the oxygen content in the two circulatory circuits
A) The pulmonary circuit carries deoxygenated blood from the right ventricle to the lungs and returns oxygenated blood to the left atrium. The systemic circuit carries oxygenated blood to the organs and tissues of the body and returns deoxygenated blood to the right atrium. B) The pulmonary circuit carries deoxygenated blood from the left ventricle to the lungs and returns oxygenated blood to the right atrium. The systemic circuit carries oxygenated blood to the organs and tissues of the body and returns deoxygenated blood to the left atrium. C) The pulmonary circuit carries oxygenated blood from the right ventricle to the lungs and returns deoxygenated blood to the left atrium. The systemic circuit carries deoxygenated blood to the organs and tissues of the body and returns oxygenated blood to the right atrium. D) The pulmonary circuit carries oxygenated blood from the left ventricle to the lungs and returns deoxygenated blood to the right atrium. The systemic circuit carries deoxygenated blood to the organs and tissues of the body and returns oxygenated blood to the left atrium. E) The pulmonary circuit carries deoxygenated blood from the right ventricle to the lungs and returns deoxygenated blood to the left atrium. The systemic circuit carries oxygenated blood to the organs and tissues of the body and returns oxygenated blood to the right atrium.
____________________ refers to the body's ability to resist or eliminate potentially harmful foreign materials or abnormal cells
Fill in the blank(s) with correct word
In which of the following is simple squamous epithelium found?
A. In the parietal and visceral layers of the glomerular capsule B. In the parietal layer of the glomerular capsule and the thin segment of the nephron loop C. In the parietal layer of the glomerular capsule and the proximal convoluted tubule D. In the proximal and distal convoluted tubules E. In the renal pelvis and ureter
A centrifuged sample of blood shows 53% plasma, 1% buffy coat, and 46% erythrocytes. What percent of the blood is the hematocrit?
A) 53% B) 47% C) 46% D) 1%