What are the major functions of the intervertebral discs?
A) to hold together the vertebra and support the body
B) to remove curvatures of the spine and provide springiness to the spinal column
C) to absorb shock and provide flexibility to the spine
D) to prevent hyperextension and allow rotation of the spine
C
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DNA in the nucleus has the genetic instructions to make dynein
Indicate whether the statement is true or false
What are the two factors that are regulated to maintain fluid balance in the body?
a. salt concentration and blood pressure b. body temperature and blood pressure c. ECF pH and ICF pressure d. ICF volume and ICF osmolarity e. ECF volume and ECF osmolarity
Gastric mixing involves which of the following?
a. partially open pyloric sphincter b. closed pyloric sphincter c. propulsion of chyme through duodenum d. strong antral peristaltic contractions e. two of these
Which statement is NOT correct?
A. high oxygenated blood returns from the lungs to the heart through the pulmonary veins B. high oxygenated blood leaves the heart and goes to the body through the aorta C. low oxygenated blood returns from the body to the heart through the vena cavae D. low oxygenated blood leaves the lungs and goes to the heart through the pulmonary arteries