Functionally, smooth muscle
A. is well adapted to anaerobic metabolism.
B. exhibits autorhythmic contractions.
C. contracts in response to slow increases in length.
D. is unable to maintain tone.
E. rapidly develops an oxygen debt.
B
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Which statement is NOT true regarding cardiac muscle?
A) Cardiac muscle cells must obey the all-or-none law of contraction. B) Calcium-induced calcium release is the process by which extracellular Ca2+ triggers the release of stored Ca2+ from the sarcoplasmic reticulum. C) Intercalated disks contain both desmosomes for firm attachment and gap junctions to allow communication. D) Cardiac muscle cells rely on a sarcoplasmic reticulum for storage of Ca2+ ions. E) The oxygen demand of cardiac muscle cells is high because they have many mitochondria.
A broad sheet of dense connective tissue that attaches the coverings of adjacent muscles is called a(n) ________.
Fill in the blank(s) with the appropriate word(s).
What is a disadvantage of using oral forms of flea prevention? a. These products work for a specified period of time
b. The flea needs to take a blood meal to get the medication. c. They provide quick knockdown effects. d. These products must be diluted before use.
Which of the following is not true of the hormone insulin?
A. It inhibits protein synthesis and fat storage. B. It lowers the blood sugar level. C. It causes facilitated diffusion of glucose across the plasma membranes of its target cells. D. It causes the synthesis of glycogen from glucose in the liver and skeletal muscles. E. All of these are true of the hormone insulin.