What are the inward extensions of the sarcolemma into the muscle cell called? What function do these extensions serve?
What will be an ideal response?
Inward extensions of the sarcolemma are known as transverse tubules (T-tubules). During excitation-contraction coupling, the action potential is carried down the T-tubules into the depths of the muscle fiber to stimulate the release of calcium ions from the terminal cisternae.
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A patient is heterozygous for sickle-cell anemia. Explain why the patient would have few or no symptoms of sickle-cell anemia
What will be an ideal response
Which two processes function in the repair of injured tissue?
A. Edema and clotting B. Necrosis and replacement C. Regeneration and replacement D. Edema and regeneration E. Necrosis and atrophy
A mucous membrane is a two-layered membrane with a potential space between the layers.
Answer the following statement true (T) or false (F)
The quantity of air that will flow into and out of the lungs depends solely on the radius of the respiratory airways
Indicate whether the statement is true or false