Which of the following is not true regarding the axial skeleton?
A) has 80 bones
B) includes the skull
C) includes the pelvic and pectoral girdles
D) includes auditory ossicles
E) includes the thoracic cage
C
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Which of the following is (are) unique to the suprarenal medullae?
A) Some cells of the suprarenal medulla secrete norepinephrine. B) The systemic effects of the suprarenal medulla are long lasting. C) The suprarenal medulla is a modified sympathetic ganglion. D) Some cells of the suprarenal medulla secrete epinephrine. E) All of the answers are correct.
A flashlight placed just below the eyebrow in a darkened room illuminates the
A) sphenoid sinus. B) frontal sinus. C) maxillary sinus. D) ethmoid sinus.
The free edges of the atrioventricular valves are attached to fibers called ____________________.
chordae tendineae liberated fibers pectinate muscles papillary muscles trabecula carnae
Match the following concerning concentration differences across the plasma membrane.A. Concentration of K+B. Concentration of Na+ and Cl?C. Negatively charged proteinsD. Sodium-potassium pumpE. Plasma membrane is more permeable to this ion because of leak ion channelsHigher concentration outside cell
Fill in the blank(s) with the appropriate word(s).