When small blood vessels are damaged, loss of blood is prevented by
a. platelet aggregation
b. vasoconstriction of these vessels
c. formation of a platelet plug
d. all of the above
e. only a and c
D
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Which of the following would decrease diffusion of a gas across the alveolar/pulmonary capillary membrane?
a. an increase in thickness of the membrane b. an increase in surface area of the membrane c. an increase in the partial pressure gradient d. two of these answers. e. all of these answers.
After childbirth, a woman begins experiencing tremendous pain in her groin, making it difficult for her to walk. An X-ray shows a fracture extending from her symphysis pubis to the inferior ramus of the pubis. As a result of the fracture, which group of muscles might be impaired?
A. Hip flexors B. Thigh abductors C. Thigh adductors D. Lateral rotators E. Hip extensors
Ventricular pressure increases the fastest during ventricular filling
Indicate whether the statement is true or false
Like veins, lymphatic vessels rely on skeletal muscle and respiratory pumps to help propel fluid through them
Indicate whether this statement is true or false.