Which of the choices below explains why the arterioles are known as resistance vessels?
A) The contraction and relaxation of the smooth muscle in their walls can change their diameter.
B) They contain a large quantity of elastic tissue.
C) They distribute blood to various parts of the body.
D) Their prime function is the exchange of nutrients and wastes between the blood and tissue cells.
A
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Connective tissue sacs lined with synovial membrane that act as cushions in places where friction develops are called ________
A) menisci B) ligaments C) tendons D) bursae
Which of the following is true in reference to what may pass through the placental barriers?
A) hormones, blood cells, and nutrients B) nutrients and respiratory gases only C) respiratory gases, hormones, nutrients, and blood cells D) nutrients, respiratory gases, wastes, and alcohol
The most anterior chamber of the heart is the right ventricle.
Answer the following statement true (T) or false (F)
The type of muscle found in the walls of blood vessels is ________ muscle.
A. skeletal B. cardiac C. striated D. voluntary E. smooth