Heart rate is increased by the release of epinephrine by the adrenal medulla into the bloodstream. This is an example of
A. endocrine control
B. exocrine control
C. paracrine control
D. direct neural control
E. positive feedback
A
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In a mother who has recently delivered a child, afterpains occur when
A. dopamine triggers uterine contractions. B. oxytocin triggers uterine contractions. C. estrogen triggers prostaglandin release. D. progesterone inhibits prostaglandin release.
Choose the statement that is false or incorrect.
A) In chemical reactions, breaking old bonds requires energy and forming new bonds releases energy. B) Exergonic reactions release more energy than they absorb. C) Endergonic reactions absorb more energy than they release. D) A key feature of the body’s metabolism is the almost exclusive use of exergonic reactions by the body.
Which of the following fills in space created when bones move and the joint cavity changes shape?
A) fat pad B) meniscus C) bursa D) gomphosis E) retinaculum
The first 1 to 2 minutes of moderate to heavy exercise relies on ________ for ATP production.
A. aerobic respiration of fatty acids B. anaerobic respiration of amino acids C. aerobic respiration of glucose D. anaerobic respiration of glucose