Thick filaments within the myofibril are composed of
A) actin.
B) myosin.
C) titin.
D) sarconin.
Ans: B) myosin.
Anatomy & Physiology
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When adenyl cyclase is activated,
A) ATP is consumed. B) cAMP is formed. C) cAMP is broken down. D) ATP is produced. E) ATP is consumed and cAMP is formed.
Anatomy & Physiology
Decreased liver protein synthesis would cause the amount of ________ and ________ in the blood to be decreased.
A. RBCs; WBCs B. albumin; fibrinogen C. thromboplastin; RBCs D. platelets; albumin
Anatomy & Physiology
Spermatozoa may remain viable in the female reproductive tract for as long as
A. 24 hours. B. 48 hours. C. 72 hours. D. 96 hours. E. 144 hours.
Anatomy & Physiology
A depression in a bone, shaped like a narrow groove, is called a ________.
A. tubercle B. fissure C. sulcus D. sanal E. fossa
Anatomy & Physiology