Which disorder is caused by dysfunctional valves in the veins that allow the backflow and pooling of blood, resulting in enlarged veins?
A. Thrombophlebitis
B. Varicose veins
C. Aneurysm
D. Coronary artery disease
Answer: B
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During motor activity, alpha-gamma coactivation provides important information regarding muscle length to the higher motor control centers.
Answer the following statement true (T) or false (F)
The mechanical act of breathing is called __________
Fill in the blank(s) with correct word
The optic nerve is formed from fibers of ________.
A. rods and cones B. amacrine cells C. ganglion cells D. bipolar cells
Blood pressure is the
A. product of the stroke volume times heart rate. B. number of layers of blood in laminar flow models. C. measure of force blood exerts against blood vessel walls. D. viscosity of the blood and resistance to blood flow. E. measure of the volume of the blood.