The pre-Botzinger complex:
A. is a part of the dorsal respiratory group
B. is thought to establish the basic rhythm of respiration
C. is a collection of neurons in the pons
D. is a part of the pontine respiratory group
E. is responsible for forcible exhalation reflexes
Ans: B. is thought to establish the basic rhythm of respiration
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Diacylglycerol is produced from
A) phosphatidylinositol bisphosphate. B) a G protein. C) cyclic AMP. D) protein kinase A. E) phospholipase C.
Which of the following makes breathing more difficult?
a. Increased pulmonary compliance b. Increased airway resistance c. Decreased elastic recoil d. both a and c e. both b and c
The development of hypoxia can limit the effectiveness of respiratory compensation for metabolic
A. acidosis. B. alkalosis.
Which structure links the right and left sides of the gray matter in the spinal cord?
A. The ventral horn B. The gray commissure C. The posterior ramus D. The posterior horn E. The central canal