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

Anatomy & Physiology

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How is respiration different from cellular respiration

Anatomy & Physiology

Peroxisomes can play a role in the detoxification of alcohol

a. true b. false

Anatomy & Physiology

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?

Anatomy & Physiology

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

Anatomy & Physiology