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Question
Creatinine has a renal clearance of 140 mL/min. Why is this?
A. It is absorbed by the nephron loop.
B. It is secreted by the glomerulus.
C. It is absorbed by the renal tubules.
D. It is secreted by the renal tubules.
E. It is produced in the pulmonary tissue.
Answer
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Related questions
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The sympathetic chain of ganglia is found at the __________ levels of the spinal cord.
A. cervical and thoracic
B. thoracic and lumbar
C. thoracic, lumbar and sacral
D. sacral, lumbar and coccygeal
E. cervical, thoracic, lumbar, sacral, and coccygeal
Q:
Sympathetic nerve fibers are not associated with situations involving __________.
A. anger
B. digestion
C. exercise
D. stress
E. arousal
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Which of the following statements is true regarding parasympathetic tone?
A. It holds the resting heart rate below its intrinsic rate.
B. It accelerates the resting heart rate above its intrinsic rate.
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B. Oculomotor - III
C. Facial - VII
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Exhausted from studying all night, you briefly close your eyes and your mind starts to wander. Which brain waves would be most predominant in an EEG?
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B. Beta
C. Delta
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Which of the following structures does not contain CSF?
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B. Lateral ventricle
C. Central canal
D. Subarachnoid space
Q:
The pyramidal cells of the precentral gyrus are called __________ neurons.
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B. third-order
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Which of the following is correct regarding the occipital lobe?
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B. It is the principal visual center of the brain.
C. It is the primary site for receiving and interpreting signals from the general senses.
D. It is concerned with voluntary motor functions.
E. It is likely to play a role in understanding spoken language.
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Planning, motivation, and social judgment are functions of the brain associated with which part of the cerebrum?
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B. Parietal lobe
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B. Tegmentum in the midbrain
C. Cerebellum
D. Reticular formation
E. Diencephalon
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The __________ function(s) in visual attention, such as to look and follow the flight of a butterfly.
A. inferior colliculi
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C. tegmentum
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Which of the following is not a function of CSF?
A. To regulate the chemical environment of the nervous tissue
B. To rinse metabolic wastes from the nervous tissue
C. To provide oxygen and nutrients to the nervous tissue
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Q:
From superficial to deep, the meninges occur in which order?
A. Dura mater, pia mater, arachnoid
B. Dura mater, arachnoid, pia mater
C. Pia mater, dura mater, arachnoid
D. Pia mater, arachnoid, dura mater
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Q:
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A. High altitude
B. Air pollution other than by carbon monoxide
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B. A diet predominantly based on red meat
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A normal hematocrit is __________ of the total blood volume.
A. less than 1%
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D. 42% to 45%
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Lymphocytes secrete antibodies, coordinate action of other immune cells, and serve in immune memory.
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A person develops anti-A antibodies only after he is exposed to antigen A, and anti-B antibodies only after he is exposed to antigen B.
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C. action of phospholipase A2
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A. arachidonic acid
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Q:
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A. adrenal glands; intestines
B. liver; kidneys
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D. liver; spleen
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Q:
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B. The antagonistic effect
C. Up-regulation
D. Enzyme amplification
E. Down-regulation
Q:
Which of the following is the last step in the sequence of events happening when cyclic AMP acts as a second messenger?
A. G protein activates adenylate cyclase
B. cAMP activates protein kinases
C. Adenylate cyclase produces cAMP
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Q:
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Q:
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