Which of the following is defined as the absorption of oxygen and the release of carbon dioxide by cells?
A) hypoxia
B) external respiration
C) anoxia
D) pulmonary ventilation
E) internal respiration
E) internal respiration
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Milk let-down ________.
A. is inhibited by oxytocin B. relies only on autonomic nerves C. is stimulated by epinephrine D. may occur in response to auditory cues
The marginal branch and posterior interventricular branch are branches of the
A) right coronary artery. B) left coronary artery. C) circumflex artery. D) coronary sinus. E) aorta.
Bursae are saclike structures that are commonly found between bone and
a) skin. b) muscle. c) ligaments. d) tendons. e) all the other answer selections.
A cord-blood transplant involves obtaining the stem cells to transplant into the diseased patient from
a) the spermatic cord of a donor's testes. b) the spinal cord of the patient. c) the umbilical cord of a donor shortly after birth. d) the irradiated bone marrow of the patient. e) the spinal cord of an aborted fetus.