When a skeletal muscle cell contracts and the muscle shortens,

A) myosin heads generate a single power stroke.
B) the actin molecule swivels during the power stroke.
C) some myosin heads are forming crossbridges as others are releasing them.
D) the actin ATPase allows the actin molecule to swivel.
E) the position of an actin molecule relative to a myosin molecule does not change.


C) some myosin heads are forming crossbridges as others are releasing them.

Anatomy & Physiology

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Answer the following statement true (T) or false (F)

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Beginning with the outermost layer, the three meningeal layers of the central nervous system are the:

A. dura mater, pia mater, arachnoid. B. arachnoid, pia mater, dura mater. C. dura mater, arachnoid, pia mater. D. pia mater, dura mater, arachnoid.

Anatomy & Physiology

One of the functions of the lymphatic system is to transport fat

Indicate whether this statement is true or false.

Anatomy & Physiology

Use word parts to construct the following medical terms. aden/o cyst/o glomerul/o hemat/o leuk/o nephro/o olig/o pyel/o ureter/o urethr/o ur/o -ectasis -ectomy -emia -itis -lith -oma -osis -pathy -sclerosis -scopy -uria procedure to visually examine the inside of the urinary bladder

What will be an ideal response?

Anatomy & Physiology