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Question
In a workout your muscle cells produce lactic acid, yet you maintain a constant blood pH because _________.
A. metabolic acids are neutralized in muscle cells before released into the blood
B. metabolic bases are produced at the same rate by muscle cells to neutralize the acids
C. the respiratory system removes excess H+ from the blood before the pH is lowered
D. the body contains chemicals called buffers that resist changes in pH
E. endothelial cells secrete excess H+ to prevent a decrease in pH
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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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. Oculomotor - III
C. Facial - VII
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B. Beta
C. Delta
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The pyramidal cells of the precentral gyrus are called __________ neurons.
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C. first-order
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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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B. To rinse metabolic wastes from the nervous tissue
C. To provide oxygen and nutrients to the nervous tissue
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A. Dura mater, pia mater, arachnoid
B. Dura mater, arachnoid, pia mater
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A. Negative feedback inhibition
B. The antagonistic effect
C. Up-regulation
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Q:
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A. G protein activates adenylate cyclase
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