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A&P Chapter 19

2nd half a 19

QuestionAnswer
Volume of blood through a vessel, an organ, or the entire circulation in a given period? Blood Flow
Force per unit area exerted on the wall of a blood vessel by the blood? Blood Pressure
Oppostition to flow? Resistance
Pressure exerted during ventricular contraction? Systolic pressure
Lowest level of arterial pressure? Diastolic Pressure
Difference between systolic and diastolic pressure? Pulse Pressure
Pressure that propels the blood to the tissues? Mean Arterial Pressure
distolic pressure+1/3 pulse pressure MAP
Pressure changes created during breathing move blood toward the heart by squeezing abdominal veins as thoracic veins expand? Respiratory pump
Contraction of skeletal muscles milk blood toward the heart and valves prevent backflow? Muscular Pump
Receptor that detects blood pressure? Baroreceptors
Receptor that detects chemicals? Chemoreceptors
A cluster of sympathetic neurons in the medulla that oversee changes in blood vessel diameter? Vasomotor Center
Which of the receptors are located in the carotid sinuses, aortic arch, and walls of the large arteries of the neck and thorax? Baroreceptors
Receptors located in the carotid sinus, aortic arch, and large arteries of the neck? Chemoreceptors
Hormone that causes intense vasoconstriction in the cases of extremely low BP? Antidiuretic Hormone
Hormone that causes blood volume and blood pressure to decline, causes generalized vasodilation? Atrial Natriuretic Peptide
Hormones that cause generalized vasoconstriction and increased cardiac output? Epinephrine and Norepinephrine
Generated by kidney release of renin, causes vasoconstriction? Angiotensin II
Pulse and blood pressure, along with respiratory rate and body temp? Vital Signs
Pressure wave caursed by the expansion and recoil of arteries? Pulse
Temporary low BP and sizziness when suddenly rising from sitting or reclining position? Orthostatic Hypotension
Hint of poor nutrition and warning sign for Addison's disease or hypothyroidism? Chronic Hypotension
Important sign of circulatory shock? Acute Hypotension
Acute hemorrhage Hypovolemic Shock
Loss of vasomotor tone as from anaphylaxis, neural malfunction, or poison Vascular Shock
Loss of Cardiac Output due to Heart Failure? Cardiogenic Shock
Local automatic adjustment of blood flow to match tissue needs? Autoregulation
Created by: stw2h
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