A falling blood pH and a rising partial pressure of carbon dioxide due to pneumonia or emphysema indicates ________
A) metabolic acidosis
B) respiratory alkalosis
C) metabolic alkalosis
D) respiratory acidosis
D
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The contraction phase of the cardiac cycle is termed ________.
Fill in the blank(s) with the appropriate word(s).
The extracellular matrix of connective tissue consists of
a) enzymes and membranous organelles. b) plasma membranes and ground substance. c) keratinized cells and protein fibers. d) calcified crystals of minerals and enzymes. e) protein fibers and ground substance.
Ice crystals forming within tissues are detrimental due to the
A) Piercing of cell membranes. B) Generation of hyperosmotic stress. C) Loss of membrane fluidity. D) All of the above
Explain the kiss-and-run model of synaptic vesicle exocytosis, and how it differs from the classic model.
What will be an ideal response?