30.1 Respiratory and Circulatory Functions
... • The circulatory system transports blood and other materials. – brings supplies to cells – carries away wastes – separates oxygen-poor and oxygen-rich blood Oxygen-rich blood ...
... • The circulatory system transports blood and other materials. – brings supplies to cells – carries away wastes – separates oxygen-poor and oxygen-rich blood Oxygen-rich blood ...
Chapter 19
... ▫A single round-trip from the heart, through the peripheral tissues, and back to the heart usually takes less than a minute, putting much mechanical stress on RBC’s ▫When a RBC is finished with it’s 120 day life span, it either ruptures or it gets engulfed by a phagocyte. ▫New RBC’s enter the blood ...
... ▫A single round-trip from the heart, through the peripheral tissues, and back to the heart usually takes less than a minute, putting much mechanical stress on RBC’s ▫When a RBC is finished with it’s 120 day life span, it either ruptures or it gets engulfed by a phagocyte. ▫New RBC’s enter the blood ...
1 Transport systems
... Transport in animals The bigger organisms become the more specialised areas of the body become. • Eg some areas will specialise for gas exchange. Gases must then be moved around to all cells and tissues where they are required, and waste gases removed • Food is absorbed in the gut then carried to a ...
... Transport in animals The bigger organisms become the more specialised areas of the body become. • Eg some areas will specialise for gas exchange. Gases must then be moved around to all cells and tissues where they are required, and waste gases removed • Food is absorbed in the gut then carried to a ...
AH chp 12 pp
... • Giving Rh-positive blood to a person with Rh-negative blood can be fatal • Considered a foreign particle to the Rh person’s blood and tries to combat it by forming antibodies • Rh factor also important in ...
... • Giving Rh-positive blood to a person with Rh-negative blood can be fatal • Considered a foreign particle to the Rh person’s blood and tries to combat it by forming antibodies • Rh factor also important in ...
Excretion – Chapter 50
... • Kidneys maintain relatively constant levels of blood volume, pressure, and osmolarity • These homeostatic functions of kidneys are coordinated primarily by hormones • Antidiuretic hormone (ADH) is released by the pituitary gland when the solute concentration of the blood rises – Makes the epitheli ...
... • Kidneys maintain relatively constant levels of blood volume, pressure, and osmolarity • These homeostatic functions of kidneys are coordinated primarily by hormones • Antidiuretic hormone (ADH) is released by the pituitary gland when the solute concentration of the blood rises – Makes the epitheli ...
Biology 12 - Wilson`s Web Page
... 3. The primary stimulus for breathing is the amount of _______________ in the blood. 4. Oxygen moves from the alveoli to the capillaries by means of _________________ 5. Most carbon dioxide is carried in the plasma as the ________________ ion. 6. Hemoglobin readily takes up oxygen in the lungs, wher ...
... 3. The primary stimulus for breathing is the amount of _______________ in the blood. 4. Oxygen moves from the alveoli to the capillaries by means of _________________ 5. Most carbon dioxide is carried in the plasma as the ________________ ion. 6. Hemoglobin readily takes up oxygen in the lungs, wher ...
Blood Vessels
... arteries and then capillaries. • Eventually, it transfers its oxygen to body cells and returns back to the heart through the veins. ...
... arteries and then capillaries. • Eventually, it transfers its oxygen to body cells and returns back to the heart through the veins. ...
CARDIOVASCULAR SYSTEM: Vessels and Circulation (Chapter 21
... prone to rupture, casued by chronic high BP or arteriosclerosis - arteriosclerosis: variety of pathological conditions causing changes in walls that decrease elasticity (“thickenings”): -focal calcification: smooth muscle degenerates, replaced by calcium salts -artherosclerosis: lipid deposits -stro ...
... prone to rupture, casued by chronic high BP or arteriosclerosis - arteriosclerosis: variety of pathological conditions causing changes in walls that decrease elasticity (“thickenings”): -focal calcification: smooth muscle degenerates, replaced by calcium salts -artherosclerosis: lipid deposits -stro ...
Mock Exam III Answers 1. False. Our diet has to be a combination of
... involuntary muscles that carry out peristalsis with smooth muscles that push food to the stomach all the way to the cardiac sphincter. 9. False. Most absorption occurs in the small intestine, as well as most digestion. 10. False. Parietal cells in the stomach DO release HCl; however, it helps the st ...
... involuntary muscles that carry out peristalsis with smooth muscles that push food to the stomach all the way to the cardiac sphincter. 9. False. Most absorption occurs in the small intestine, as well as most digestion. 10. False. Parietal cells in the stomach DO release HCl; however, it helps the st ...
1st 6 Weeks District Test Review
... To exchange carbon dioxide and oxygen in the blood To supply air for the individual to breath ...
... To exchange carbon dioxide and oxygen in the blood To supply air for the individual to breath ...
My Crazy Circulatory System
... Your capillaries are your smallest blood vessels. Only one blood cell can fit in the opening at a time. Your veins are the second largest blood vessel. They are the blue lines in diagrams and drawings. It also carries the blood back to your heart. ...
... Your capillaries are your smallest blood vessels. Only one blood cell can fit in the opening at a time. Your veins are the second largest blood vessel. They are the blue lines in diagrams and drawings. It also carries the blood back to your heart. ...
Unit 3 Revision Notes - St. Mary`s Independent School
... 3. When blood flows past cells with very little oxygen in them, the oxyhaemoglobin breaks down. ...
... 3. When blood flows past cells with very little oxygen in them, the oxyhaemoglobin breaks down. ...
File
... • Rate of flow is precisely the right amount to provide for proper function Velocity of Blood Flow • Changes as it travels through the systemic circulation • Is inversely related to the total cross-sectional area • Is fastest in the aorta, slowest in the capillaries, increases again in veins • Slow ...
... • Rate of flow is precisely the right amount to provide for proper function Velocity of Blood Flow • Changes as it travels through the systemic circulation • Is inversely related to the total cross-sectional area • Is fastest in the aorta, slowest in the capillaries, increases again in veins • Slow ...
Types of Circulatory System Open Circulatory System
... veins and move blood back to heart Contain O2- poor blood (CO2) ...
... veins and move blood back to heart Contain O2- poor blood (CO2) ...
Document
... is nothing but the sound produced by the closure of the heart when the blood is pushed through its chamber. 4. A ...
... is nothing but the sound produced by the closure of the heart when the blood is pushed through its chamber. 4. A ...
Acid-Base Equilibria and pH Regulation of Blood Plasma
... Metabolic acidosis is the decrease in blood pH that results when excessive amounts of acidic substances are released into the blood. This can happen through prolonged physical exertion, by diabetes, or restricted food intake. The normal body response to this condition is increases breathing to reduc ...
... Metabolic acidosis is the decrease in blood pH that results when excessive amounts of acidic substances are released into the blood. This can happen through prolonged physical exertion, by diabetes, or restricted food intake. The normal body response to this condition is increases breathing to reduc ...
Respiration - Mr. Brigham Science
... How is breathing controlled in humans? • Brain senses pH concentration of blood (Carbon dioxide is acidic) – If carbon dioxide is high (blood becomes acidic) – increases breathing rate (to get rid of the acidic carbon dioxide and bring the blood back to neutral) – If carbon dioxide is low (blood is ...
... How is breathing controlled in humans? • Brain senses pH concentration of blood (Carbon dioxide is acidic) – If carbon dioxide is high (blood becomes acidic) – increases breathing rate (to get rid of the acidic carbon dioxide and bring the blood back to neutral) – If carbon dioxide is low (blood is ...
Human Body Notes Website
... change the focus for seeing objects up close or far away. 8.79 Retina: Contains the photoreceptors (rods and cones) 8.80 Rods: Black and White (night vision) ...
... change the focus for seeing objects up close or far away. 8.79 Retina: Contains the photoreceptors (rods and cones) 8.80 Rods: Black and White (night vision) ...
The Circulatory System
... lowest pressure, which occur in the arteries during cardiac relaxation. ...
... lowest pressure, which occur in the arteries during cardiac relaxation. ...
Homeostasis
Homeostasis or homoeostasis (homeo- + -stasis) is the property of a system in which variables are regulated so that internal conditions remain stable and relatively constant. Examples of homeostasis include the regulation of temperature and the balance between acidity and alkalinity (pH). It is a process that maintains the stability of the human body's internal environment in response to changes in external conditions.The concept was described by French physiologist Claude Bernard in 1865 and the word was coined by Walter Bradford Cannon in 1926. Although the term was originally used to refer to processes within living organisms, it is frequently applied to automatic control systems such as thermostats. Homeostasis requires a sensor to detect changes in the condition to be regulated, an effector mechanism that can vary that condition, and a negative feedback connection between the two.