Anatomy / Physiology Flashcards
Blood vessel that carries blood back to the heart
Vein
Valve between the left ventricle and aorta
Aortic valve
Muscular middle layer of the heart
Myocardium
Double-layered membrane on the outside of the heart
Pericardium
Blood cells required for the clotting process
Thrombocyte (Platelets)
Blood vessel that carries blood away from the heart
Artery
Muscular wall that separates the heart into a right and left side
Septum
Complex protein on red blood cells
Hemoglobin
Lower chamber of the heart
Ventricle
Smooth layer of cells lining the inside of the heart
Endocardium
Valve between the right ventricle and pulmonary artery
Pulmonary valve
Upper chamber of the heart
Atrium
Blood cells that carries oxygen and carbon dioxide
Erythrocyte (Red Blood Cell)
Brief period of rest in the heart
Diastole
Fluid portion of blood
Plasma
Blood vessel that connects arterioles with venules
Capillary
Valve between the left atrium and left ventricle
Mitral Valve / Bicuspid
Blood cells that helps fight infection
Luekocyte (White Blood Cell)
Period of ventricular contraction in the heart
Systole
Tissue that flows through the circulatory system
Blood
What is the purpose of valves?
To prevent backflow
Arteries usually carry…
Oxygenated Blood
What artery carries deoxygenated blood?
The Pulmonary Artery
Veins usually carry…
Deoxygenated Blood
What vein carries oxygenated blood?
The Pulmonary Veins
The SA Node stands for…
Sinoatrial Node
The heart is a
Muscular organ that pumps blood through the body
Blood contains
CO², O², Nutrients, Hormones
Functions of blood
*Deliver O² & Nutrients to cells
*Remove waste products (CO²)
*Regulates body temperate
*Transports hormones & immune cells
*Protects against infection
Size of the heart
Roughly a clenched fist
Weight of the heart
10oz.
Location of the Heart
Superior to the Diaphragm,
Posterior to the Sternum,
Anterior to the Spinal Cord,
Medial to the Lungs
The Pericardium is
a thin, fluid-filled sac that surrounds the heart; connected to major blood vessels (Aorta, Vena Cava)
The Epicardium is
the Innermost layer of the Pericardium
The Myocardium is
A thick, cardiac muscle
The Endocardium is
The innermost layer –> Smooth Lining
The Right Atrium recieves
Deoxygenated Blood from the Veins
(Superior Vena Cava, Coronary Veins)
The Right Ventricle recieves
Deoxygenated Blood from the Right Atrium and pumps it to the Lungs (Via. Pulmonary Artery)
The Left Atrium recieves
Oxygenated blood from the Pulmonary Veins (Lungs) and pumps the blood to the Left Ventricle
The Left Ventricle recieves
Oxygenated Blood from the Left Atrium and pumps Blood into the Aorta.
The Strongest Chamber is
The Left Ventricle
