What are the parts of the skeletal muscle triad and what are their functions?
What will be an ideal response?
The sarcoplasmic reticulum is a reservoir for calcium ions in the cell's normal resting state. The T tubule is a fold in the cell membrane between the sarcoplasmic reticuli. When an impulse is activated by a motor neuron, the voltage-regulated change causes SR foot proteins to open Ca2+ channels. The calcium ions are flushed out where they interact with the troponin complex to initiate a contraction. Once the axon stops firing, the membrane polarity is quickly restored and the calcium ions are pulled off the troponin and attracted back into the sarcoplasmic reticulum
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Sharon is a 32-year-old horse trainer. While training a young horse, she was thrown off of the horse and suffered a mild head injury. The nurse inquires about the use of a helmet. Sharon replies, "This is the first time I have ever had a head injury from a horse. I don't think I need a helmet"; Based on your understanding of the skull, how should the nurse respond to the patient?
What will be an ideal response?
How is respiration different from cellular respiration
Which of the following leukocytes has cytoplasmic granules?
A) neutrophils only B) basophils only C) eosinophils only D) both basophils and eosinophils E) basophils, eosinophils, and neutrophils
Peroxisomes can play a role in the detoxification of alcohol
a. true b. false