15. When blood glucose levels are elevated, insulin is
secreted by (be as specific as possible)
a. pancreatic acini
b. pancreatic islets
c. alpha cells
d. beta cells
e. delta cells
16. Proprioceptive information for posture, balance and
skilled movement is conducted via the
a. posterior funiculus and medial lemniscal tract
b. anterolateral tract
c. spinocerebellar tract
d. pyramidal pathway
e. indirect pathway
17. Valves are found in
a. heart
b. veins
c. arteries
d. a and b
e. all of the above
18. The parietal pericardium
a. is continuous with the parietal pleura
b. is composed of a fibrous and a serous layer
c. forms a protective sac for the heart
d. secretes serous fluids
e. is also known as the epicardium
19. The two largest veins of the body are the
a. opthalmic and internal jugular veins
b. inferior and superior vena cavae
c. external jugular and occipital veins
d. brachiocephalic and subclavian veins
e. internal and external jugular veins
20. The thin strand of pia mater that anchors the distal
spinal cord in the vertebral column is the
a. denticulate ligament
b. posterior rootlet
c. filum terminale
d. conus meduallaris
e. pons
21. The major relay for sensory pathways is the
a. pons
b. thalamus
c. medulla oblongata
d. brainstem
e. cerebrum