Which of the following is not one of the body's three lines of defense against pathogens?
A. Physical barriers such as skin and mucous membranes
B. Nonspecific actions of cells, proteins, and inflammation
C. Specific immunity by B and T cells
D. Drainage of excess interstitial fluid into lymphatic capillaries
D. Drainage of excess interstitial fluid into lymphatic capillaries
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What is chest pain due to an inadequate blood supply to heart muscle tissue called?
A. Cardiac tamponade B. Atheroma C. Myocardial infarction D. Angina pectoris E. Ventricular fibrillation
Which of the following is NOT part of the brainstem?
A. Thalamus B. Pons C. Medulla oblongata D. Midbrain
Ashton was in a car accident and experienced severe blood loss. All of the following are potential outcomes of blood loss except ________
A) Increased blood pressure B) Vasoconstriction C) Renal failure D) Decrease in blood volume
What is a function of catecholamines?
a) to increase alertness and prepare the body for physical activity b) to decrease alertness and induce sleep c) to slow the heart rate, decrease blood pressure and raise metabolic rate