Which of the following statements about blood vessel structure and function is FALSE?
A. Veins are more compliant than arteries.
B. The aorta and other large arteries serve as a pressure reservoir for the circulatory system.
C. Arterioles are small vessels whose resistance to blood flow can be varied.
D. Arterioles, capillaries, and veins all have valves that allow only one-way flow of blood.
E. If your blood pressure is 100/70, your mean arterial blood pressure is ~80 mm Hg.
D
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Indicate whether the statement is true or false
Which factors are believed to be responsible for acne?
A. Viruses, including Herpes virus B. Overproduction of sebum by sebaceous glands C. Hormone levels D. Overproduction of sweat by eccrine glands E. Bacteria, including Propionibacterium acnes F. Abnormal production of cells G. Sugary and fried food
As an electrical impulse travels down the electrical conduction system, it transiently slows at the:
A. AV node. B. bundle of His. C. sinoatrial node. D. interatrial septum.
Damage to branches of the ________ nerve can interfere with normal speech.
A. glossopharyngeal B. trigeminal C. abducens D. vagus E. facial