The complex of a transverse tubule and two adjacent terminal cisternae is known as a(n)
A) free head.
B) zone of overlap.
C) M line.
D) triad.
E) sarcomere.
Answer: D
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Which of the following does not occur during vomiting?
a. the diaphragm contracts. b. the abdominal muscles contract. c. the stomach contracts. d. respiration is inhibited. e. the glottis is closed.
Peptide hormones include which of the following?
A) follicle-stimulating hormone B) calcitonin C) follicle-stimulating hormone and estrogen D) estrogen E) follicle-stimulating hormone and calcitonin
Why is the rate of CO2 exchange roughly equivalent to that of O2 despite its less steep pressure gradient?
A. CO2 diffuses much more rapidly out of the cells. B. CO2 binds to O2 and moves across the respiratory membrane simultaneously. C. CO2 is more soluble in water than is O2. D. CO2 is actively transported into the alveoli.
Identify the facial bones
A) occipital bone, frontal bone, sphenoid, ethmoid, and the paired parietal and temporal bones B) frontal bone, occipital bone, and the paired parietal and temporal bones C) the paired nasal, lacrimal, palatine, zygomatic, maxillae, and inferior nasal conchae, and the unpaired vomer and mandible D) the paired nasal, lacrimal, zygomatic, and the unpaired vomer E) sphenoid, ethmoid, vomer, mandible, and the maxillae