The substance in muscle fiber cytoplasm that directly powers muscle contraction is ___________.
A) ATP.
B) glucose.
C) fatty acids.
D) phosphocreatine.
A) ATP.
Anatomy & Physiology
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Which of the following is not one of the three main factors influencing stroke volume?
A. Afterload B. Chronotropic agents C. Inotropic agents D. Venous return
Anatomy & Physiology
Which of the following types of fatigue is caused by the release of more acetylcholine than can be produced to replace it?
A) muscular B) psychological C) synaptic D) physiological
Anatomy & Physiology
In general, the contraction of skeletal muscle lasts longer than contraction of smooth muscle
Indicate whether the statement is true or false
Anatomy & Physiology
This extension of one of the meninges covering the spinal cord attaches it to the coccyx
A) conus medullaris B) denticulate ligament C) dura mater D) filum terminale
Anatomy & Physiology