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Question
Why is the contraction strength of smooth muscle relatively independent of its resting length?
A. It gets nearly all of its Ca2+ from the extracellular fluid.
B. It does not have intercalated discs.
C. It does not have sarcomeres.
D. It is regulated by a length-tension relationship.
E. It is involuntary muscle.
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
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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?
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B. It accelerates the resting heart rate above its intrinsic rate.
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B. Oculomotor - III
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B. Beta
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B. Lateral ventricle
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D. Subarachnoid space
Q:
The pyramidal cells of the precentral gyrus are called __________ neurons.
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Q:
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.
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A. To regulate the chemical environment of the nervous tissue
B. To rinse metabolic wastes from the nervous tissue
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Q:
From superficial to deep, the meninges occur in which order?
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B. Dura mater, arachnoid, pia mater
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Q:
Which of the following structures appears as a large bulge just rostral to the medulla?
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A normal hematocrit is __________ of the total blood volume.
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Q:
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Q:
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