Which of the following is not one of the three major components of animal cells
a. plasma membrane
b. nucleus
c. ECF
d. cytoplasm
Ans: c. ECF
Anatomy & Physiology
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In the slow block to polyspermy, sperm penetration releases an inflow of __________, which in turn stimulates the cortical reaction.
A. Cl- B. K+ C. Na+ D. Ca2+ E. Mg2+
Anatomy & Physiology
Only in males do the cells of Leydig secrete LH
Indicate whether the statement is true or false
Anatomy & Physiology
When the epiphyseal plate is replaced by bone,
A) puberty begins. B) interstitial bone growth begins. C) appositional bone growth begins. D) long bones have reached their adult length. E) the bone becomes more brittle.
Anatomy & Physiology
When a nurse draws blood, it is not uncommon for the needle to penetrate which muscle near the cubital region?
A. Semimembranosus B. Supinator C. Pronator quadratus D. Pronator teres E. Buccinator
Anatomy & Physiology