Cerebrospinal fluid enters that subarachnoid space via the:
a. median aperture
b. central canal
c. the choroid plexus
d. arachnoid granulations
Answer: a. median aperture
You might also like to view...
Which of the following is a spasmodic contraction of the diaphragm followed by spasmodic closure of the rima glottidis, which produces a sharp sound on inhalation?
a) sneezing b) coughing c) laughing d) hiccupping e) Valsalva maneuver
A skull with five gracile features and one robust feature is most likely a _______
A. male B. female
Which of the following statements concerning veins is FALSE?
A. There is less smooth muscle and elastic tissue in veins as compared to arteries. B. Veins contain so much of the body's blood that they are considered blood reservoirs. C. Weak venous valves may result in varicose veins. D. Skeletal muscle movement and breathing movements help in returning venous blood to the heart. E. The tunica interna is the thickest tunic in veins.