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Test #2

Chapter 6, 9, 10

QuestionAnswer
Closed system by which blood is circulated to all parts of the body. Cardiovascular System
Major structures of the Circulatory System. The Heart, Blood, and Blood Vessels.
4 chambers, hollow, muscular organ, 2 sides (right and left chambers), the right and left chambers are separated by the septum, and valves between chambers prevent back flow. Heart Structures
Outer thin layer of the heart. Epicardium
Middle muscle layer of the heart. Myocardium
Inner thin layer of the heart. Endocardium
The upper chambers on each side of the heart are called: Atria
The lower chambers on each side of the heart are called: Ventricles
The upper chambers of the heart are: Receiving Chambers
The lower chambers of the heart are: Delivering Chambers
Receives deoxygenated blood from the body via superior and inferior vena cava. Right Atrium
Receives blood from the right atrium and pumps in into the lungs. Right Ventricle
Receives oxygenated blood from the lungs. Left Atrium
Receives blood from the left atrium and pumps it to the body via aorta. Left Ventricle
Inferior and superior vena cava bring blood from the body to the right atrium. Vena Cava
Take blood from the right ventricle to the lungs. Pulmonary Arteries
Carries blood away from the heart to the body. Aorta
Bring oxygenated blood from the lungs back to the heart. Pulmonary Veins
Controls flow of blood from right atrium to right ventricle. Tricuspid Valve
Controls flow of blood from the right ventricle to pulmonary arteries. Pulmonic Valve
Controls flow of blood from the left atrium into the left ventricle. Mitral Valve (Biscupid Valve)
Controls flow of blood from the left ventricle into the aorta. Aortic Valve
Contracts at the same time, pushing into the ventricles, then they relax. Right and Left Atria
The right ventricle contraction pushes blood into the pulmonary artery towards the lungs, the left ventricle contraction pushes blood into the aorta for delivery into the entire body, then they relax. Right and Left Ventricles
Contracting Phase Systole
Relaxing Phase Diastole
After the atria and ventricles have contracted once, they all briefly relaxed, and then starts again. Cardiac Cycle
Average blood pressure. 120/80
Measures the force (pressure) placed by the blood on the walls of blood vessels. Blood Pressure
The pressure in the arteries while the ventricles are contracting. Systolic Pressure
The pressure in the arteries while the ventricles are relaxing. Diastolic Pressure
The rhythmic contraction and relaxation of the arterial blood vessels in response to the contraction and relaxation of the heart. Pulse
All blood will circulate throughout the entire body every 2 minutes. Heart Rate and Cardiac Output
Number of heart beats/minute. Heart Rate
72 beats/minute. Normal Heart Rate
Volume of blood pumped in 1 minute. Cardiac Output
5 liters of blood/for a person weighing 145lbs. Average Cardiac Output
Two Divisions: Pulmonary Circulation and Systemic Circulation Cardiovascular System
Carries deoxygenated blood from the heart to the lungs so carbon dioxide can be released; blood picks up oxygen in the lungs and returns it to the heart. Pulmonary Circulation
Carries oxygenated blood along with nutrients to all cells of the body; removes waste products from the cells and delivers them to excretory organs; returns deoxygenated blood to the heart. Systemic Circulation
Arteries, arterioles, capillaries, venules, and veins. Blood Vessels
Carry blood away from the heart; thicker walls; have a pulse that can be felt. Arteries
Carry blood towards the heart; thinner walls; have valves to prevent blood from back flowing. Veins
Carry oxygenated blood from the heart to the body. Systemic Arteries
Carry deoxygenated blood from the heart to the lungs. Pulmonary Arteries
Carry deoxygenated blood from the body to the heart. Systemic Veins
Carry oxygenated blood from the lungs to the heart. Pulmonary Veins
Smallest of all the blood vessels; microscopic, one-cell thick blood vessels; connect arterioles and venules. Capillaries
The thin walls of the capillaries let the carbon dioxide move out of the blood to be exhaled; let oxygen from air breathed in move into the blood; the oxygenated blood flows through the capillaries then the venules then the veins to the heart. Capillaries of Pulmonary Circulation
Arterial blood with oxygen and nutrients travels into the capillaries; thin walls of capillaries let the oxygen and nutrients move out of the blood into the surrounding tissue; carbon dioxide and waste are picked up and carried away in the venous blood. Capillaries of the System Circulation
An open system by which tissue fluid is returned to the blood stream. Lymphatic System
Returns tissue fluid to the bloodstream, protects the body, process lymphocytes, and delivers fats to the blood stream. Lymphatic Functions
Lymph fluid, lymphatic vessels, ducts, and nodes. Lymphatic Structures
Capillaries, vessels and nodes, right lymphatic duct, thoracic duct, and large veins. Lymph Flow
Created by: msxembellished