The Ca2+ required for skeletal muscle contraction ________.
A. enters the cell due to the opening of voltage regulated Ca2+ channels from the T tubules
B. is released from the sarcoplasmic reticulum
C. is actively transported into the cell
D. is released from mitochondria
Answer: B
You might also like to view...
Which of the following is NOT true of diffusion in the human body?
A) Net movement of molecules occurs until the osmolarity is equal. B) Diffusion occurs faster at higher temperatures. C) Diffusion is rapid over short distances and slower over longer distances. D) Smaller molecules take longer to diffuse than larger ones.
Define diabetes
What will be an ideal response?
Muscles of the vertebral column that insert on the skull include the word ________ in their names
A) cervicis B) capitis C) thoracis D) lumborum
Renal clearance is defined as:
A) the amount of filtrate that is reabsorbed during one day. B) the rate at which the kidneys remove a substance from the blood. C) the percent of blood plasma that passes through the filtration membrane. D) the amount of filtrate formed by both kidneys in one minute.