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Cardiovascular System Alexis Zatarain Per.3 - Coggle Diagram
Cardiovascular System Alexis Zatarain Per.3
Major Components & Functions
Transport
Delivering O2 and nutrients to body cells
Regulation
Maintaining body temperature by absorbing and distributing heat
Protection
Preventing blood loss
Preventing infection
Plasma
Over 100 dissolved solutes
Nutrients, gases, hormones, wastes, proteins, inorganic ions
Erythrocytes (red blood cells)
Leukocytes (white blood cells)
Platelets
ABO, Rh blood type
s
AB: no antibodies , can receive A, B,, AB, O, universal recipient
B: Anti-a, can receive B,O
A: anti-b, can receive A,O
O: anti-a, anti-b, universal donor
Major Functions of Cardiovascular Syst
Heart pumps through body
Arteries carry blood from heart to body
veins return blood to heart
transport immune cels
platelets initiate clotting to prevent blood loss
regulates body acid balance
carries metabolic waste
Layers of Heart
Pericardium: double-walled sac that surrounds heart; made up of two layers
serous pericardium
Parietal layer lines internal surface of fibrous pericardium
Visceral layer (epicardium) on external surface of heart
Epicardium: visceral layer of serous pericardium
Myocardium: circular or spiral bundles of contractile cardiac muscle cells
Endocardium: innermost layer; is continuous with endothelial lining of blood
vessels
Anatomy of Heart
Heart – Pumps blood through the body
Right Atrium – Receives low-oxygen blood
Right Ventricle – Pumps blood to lungs
Left Atrium – Receives oxygen blood
Left Ventricle – Pumps blood to body
Valves – Prevent backflow of blood
Tricuspid Valve
Mitral Valve
Aorta – Carries blood to body
Pulmonary Arteries – Carry blood to lungs
Pulmonary Veins – Carry blood to heart
Diff of Vessels
Arteries
S: think elastic walls, small inner space
F:carry blood from heart
Veins
S: thinner walls, larger inner space, have evalves
F: carry blood back to heart
Capillaries
S: very thin, one cell think wall
F: exchange oxygen, nutrients, wastes
Cardiac Cycle & ECG
one heartbeat
Diastole:heart relaxes and fills with blood
Systole: heart contracts and pumps out blood
heart electrical activity
P wave: atria contract
QRS complex: ventricles contract
T wave: ventricles relax
Major Blood Vessels
Arteries
Aorta Carries blood from the heart to the body
Pulmonary Arteries Carry blood from the heart to the lungs
Coronary Arteries blood to the heart muscle
Carotid Arteries – Carry blood to the brain
Veins
Vens Csvs: carry blood from body to heart
pulmonary veins: blood from lungs to heart
Vital SIgns
Blood pressure
force of blood against artery walls
Systolic: pressure when heart contracts
Diastolic: pressure when heart relaxes
Pulse
heart rate
felt in arteries
how fast and steady heart is beating
Disorders
High Blood Pressure: blood pressure too high straining heart and vessels
Heart Attack : blocked blood flow to the heart muscle
stroke : blocked or burst blood vessel in brain
Arrhythmia :Irregular heartbea
deO2 blood enters through superior inferior vena cava into right atrium through tricuspid valve to right ventricle through pulmonary semilunar valve to pulmonary trunk to pulmonary arteries to lungs where it pics up O2 then through pulmonary veins to left atrium through bicuspid/mitral valve to left ventricle through aortic semilunar valve to aorta to body where eit releases O2
Blood Flow