Please enable JavaScript.
Coggle requires JavaScript to display documents.
Gavin Arias Per.1 Cardiovascular System - Coggle Diagram
Gavin Arias Per.1 Cardiovascular System
Anatomy of the Heart
Pulmonary Artery-delivers oxygen-poor blood through the heart into the lungs
Pulmonary Vein-delivers oxygen-rich blood from the lungs to the heart
Superior/Inferior Vena Cava-delivers oxygen-poor blood to the heart
Right Ventricle-pumps oxygen-poor blood through the heart to the lungs
Aorta-delivers oxygen-rich blood from the heart to the body
Left Ventricle-pumps oxygen-rich blood through the heart to the body
Triscupid Valve-Prevents blood from moving from the right ventricle into the right atrium during ventricular contraction
Right Atrium-pumps oxygen-poor blood through the heart
Pulmonary Valve-Prevents blood from moving from the pulmonary trunk into the right ventricle during ventricular relaxation
Left Atrium-pumps oxygen-rich blood through the heart
Mitral (biscupid) Valve-Prevents blood from moving from theleft ventricle into the left atrium during ventricular contraction
Aortic Valve-Prevents blood from moving from the
aorta into the left ventricle during ventricular relaxation
Blood Flow Through the Heart and Body
Blood travels through the aorta and flows through the rest of the body with oxygen-rich blood
This blood travels through the biscupid valve, into the left ventricle, and through the aortic semilunar valve
The blood is now oxygen-rich and is transported away via the pulmonary vein and into the left atrium
It then goes through the pulmonary semilunar valve, through the pulmonary artery, and into the lungs
This blood moves into the right atrium, through the triscupid valve, and into the right ventricle
Oxygen-poor blood moves into the Inferior-Superior Vena Cava to the heart
Cardiac Cycle and the ECG
Cardiac Cycle-Consists of the following events: First the atria contract, while ventricles relax; then the ventricles contract while the atria relax; then the entire heart relaxes for a brief moment
ECG-a recording of the electrical changes that occur
during a cardiac cycle
Major Functions of the Cardiovascular System
Supplies oxygen and
nutrients to tissues and removing wastes from them
Structural and Functional Differences Between Blood Vessel Types
Veins-transport blood toward the heart
Capillaries-are vessels that run between arteries and veins
Arteries-transport blood away from the heart
Venule-connects a capillary to a vein
Arteriole-Connects an artery to a capillary; helps control
blood flow into a capillary by vasoconstricting or
vasodilating
Disorders of the Cardiac System
Cerebrovascular Accident- Blood flow to a portion of the brain is interrupted
Endocarditis and Myocarditis- Inflammation of the heart
Peripheral Artery Disease- Arteries narrow and reduce blood flow to extremities
Congenital Heart Disease- Issue with heart structure and/or function present from birth
Myocardial Infarction- Blood flow to part of the heart is blocked
Vital Signs
BP-the measurement of the intensity of blood flow through the body
Pulse-the measurement of the intensity of the beating of the heart
Major Components and Structures of Blood
Red Blood Cells-in control of respiratory gas transport
Platelets-in control of stopping bleeding
White Blood Cells-in control of fighting infection
Plasma-the liquid matrix of blood
ABO, Rh Blood Types
A-has A antigens on RBC membranes and anti-B
antibodies in the plasma
B-has B antigens on RBC membranes and anti-A
antibodies in the plasma
AB-has both A and B antigens on RBC membranes, but
neither type of antibodies in the plasma; universal recipient
O-has neither antigen on RBC membranes, but both
types of antibodies in the plasma; universal donor
Rh-has neither +/- Rh antigens unless present in the body or obtained when in contact with a + carrier
Layers of the Heart
Myocardium-the middle layer; consists of cardiac muscle, and
is the thickest layer of the heart wall; pumps blood out of heart
chambers
Endocardium-the inner layer; made up of connective tissue and
epithelium; continuous with the endothelium of major vessels
joining the heart; contains the Purkinje fibers (part of the
cardiac conduction system)
Epicardium-the outermost layer; a
serous membrane made up of connective tissue and
epithelium; decreases friction in the heart
Major Blood Vessels
Pulmonary Artery-delivers oxygen-poor blood through the heart into the lungs
Pulmonary Vein-delivers oxygen-rich blood from the lungs to the heart
Superior/Inferior Vena Cava-delivers oxygen-poor blood to the heart
Aorta-delivers oxygen-rich blood from the heart to the body