7. The ascending tract of the spinal cord that is the primaryconveyor of sensory information after burning a hand is
​a. fasciculus gracilis
​b. corticobulbar tract
​c. lateral spinothalamic tract
​d. pyramidal tract
​e. posterior spinocerebellar tract
8. Venous blood from the heart wall enters the right atriumthrough the
​a. inferior vena cava
​b. superior vena cava
​c. pulmonary vein
​d. coronary sinus
​e. pulmonary artery
9. The region of the retina with the highest proportion ofcones and almost no rods is the
​a. optic disc
​b. macula lutea
​c. fovea centralis
​d. amacrine cell layer
​e. pigment epithelium
10. Blood return to the heart is powered by
​a. massaging action of skeletal muscle in the general area ofveins
​b. negative pressure in the thoracic cavity
​c. heart pumping
​d. a and b
​e. all of the above
​
11. The middle layer of the adrenal cortex that synthesizesglucocorticoids is the
​a. zona fasciculata
​b. zona reticularis
​c. zona glomerulosa
​d. zona corticosa
​e. zona medullaris
12. The inferior rectus muscle of the eye
​a. moves eyes laterally and is innervated by cranial nerve VI(abducens)
​b. moves eyes medially and is innervated by cranial nerve III(oculomotor)
​c. depresses eye and is innervated by cranial nerve III(oculomotor)
​d. elevates eye and is innervated by cranial nerve III(oculomotor)
​e. rotates eye and is innervated by cranial nerve VI(abducens)
13. In all cases
​a. arteries carry blood away from the heart; veins carryblood towards the heart
​b. veins carry blood away from the heart; arteries carryblood towards the heart
​c. arteries carry oxygenated blood; veins carry deoxygenatedblood
​d. arteries carry deoxygenated blood; veins carry oxygenatedblood
​e. no such generalization can be made for all cases
14. The valve between the right ventricle and the pulmonarytrunk is the
​a. pulmonary semilunar valve
​b. bicuspid valve
​c. left atrioventricular valve
​d. mitral valve
​e. aortic semilunar valve
