Cardiac muscle cells are like skeletal muscle cells in that they both
A. have striations.
B. depolarize as a result of sodium and calcium influxes.
C. possess intercalated disks.
D. lack sarcomeres.
E. are multinucleated.
A
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Transverse tubules
A. store sodium ions for the action potential at the cell surface. B. store calcium ions. C. connect actin and myosin. D. transmit muscle impulses into the cell interior.
Which of the following is required before a bath?
a. removing mats c. basic combing b. basic brushing d. all of the above
Younger asks Zoey, "Do you want to buy one of my fishing rods?" This is
a. a valid offer. b. not a valid offer because the terms are not definite. c. not a valid offer because Younger did not state an intent. d. not a valid offer because Zoey did not respond.
The cell that dominates the deep cortical region of a lymph node is the ________ cell
A) B B) T helper C) plasma D) cytotoxic T E) NK