How do calcium ions effect the changes leading to muscle contraction?

Fill in the blank(s) with the appropriate word(s).


Calcium ions are constantly transported out of the sarcoplasm and into the sarcoplasmic reticulum to be released when electrical changes occur in the membranes of the T tubules. The duration of the contraction depends upon the duration of the electrical events.

Anatomy & Physiology

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What will be an ideal response?

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Which muscle is part of the urogenital diaphragm and constricts the urethra to voluntarily inhibit urination?

A. External urethral sphincter B. Bulbospongiosus C. Superficial transverse perineal muscle D. Ischiocavernosus E. Pubococcygeus

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The axon hillock makes up the ________ segment of a neuron

Fill in the blank with correct word.

Anatomy & Physiology