Only neurons and muscle cells establish resting membrane potentials
Indicate whether the statement is true or false
F
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During excitation-contraction coupling,
a. the action potential travels down the transverse tubules. b. Ca2+ is released from the sarcoplasmic reticulum. c. Ca2+ is taken up by the sarcoplasmic reticulum. d. both (a) and (b) above are correct. e. all of these answers.
The palatoglossus (glossopalatine) has muscle spindles. If they are triggered to respond, what will happen to the tongue and soft palate?
What will be an ideal response?
Observe the photo below. Identify the labeled cell components
What will be an ideal response?
Which way would O2 and CO2 diffuse during internal respiration?
a) Both O2 and CO2 would diffuse into the systemic capillaries. b) O2 would diffuse into the systemic capillaries, and CO2 would diffuse into the cells. c) O2 would diffuse into the pulmonary capillaries and CO2 would diffuse into the alveoli. d) O2 would diffuse into the cells, and CO2 would diffuse into the systemic capillaries.