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A & P 3rd q exam

QuestionAnswer
What is the function of Erythrocytes? carry oxygen to all cells of the body
What is the function of Leukocytes? defends body against invaders
What is the function of Plasma? takes nutrients, proteins, and hormones through the body
What is the function of Platelets? responsible for clotting
What is the pH of blood? 7.35 - 7.45
What is a hemocytoblast? stem cells that give rise to all the formed elements
What is the function of Calcitonin? reduces calcium levels in blood
What is the function of Cortisol? manage stress and regulates metabolism
What is the function of Epinephrine? regulates "fight or flight" increases heart rate, blood pressure, and O2 intake
What is the function of Glucagon? Raises blood glucose levels
What is the function of Insulin? lowers blood glucose levels
What is the function of Melatonin? responsible for circadian rhythms
What is the function of oxytocin? stimulates uterine contractions and release of breast milk
What is the function of Prolactin? stimulates production of breast milk
How do endocrine glands work? secretes directly through the blood stream
How do exocrine glands work? secretes through ducts
What is positive feedback? Encourages change. Causes more and more of the hormone to be released
What is negative feedback? maintains homeostasis by increasing or decreasing a stimulus to maintain equilibrium
What is the name of the heart muscle? myocardium
What are the layers of the pericardium? Fibrous, parietal, visceral
What is the function of Fibrous pericardium? protects and anchors heart
What is the structure of arteries? Thick walls, highly flexible
What is the structure of veins? thin walls, venules empty into veins
What affects the heart rate? Stress, hormones, physical factors
What is the pericardium? A sac that surrounds the heart
What is the function of Parietal pericardium? lines interior surface
What is the function of Visceral pericardium? reduces friction
What is the amount of plasma in the blood? 55%
What is the amount of RBC in blood? 45%
What is the amount of the buffy coat in blood? less than 1%
What does the buffy coat consist of? White blood cells and platelets
Common name of erythrocytes? Red blood cells
Common name of White blood cells? Leukocytes
What is the color of plasma? straw-colored
What does plasma consist of? dissolved nutrients, gases, hormones, wastes, proteins, and salts
Common name of Thrombocytes? Platelets
What percent of Plasma is water? 90%
What is the foramen ovale? a hole in between the atriums of the heart
Created by: julie.russell
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