Heart

Right Atrium

Receives deoxygenated blood from the body

Para Sympathetic

Rest and Digest Think wet, and slow rest and digest, Hr, Bp, R, down and GI, arousal,tears,urine and defecation up

Smooth Muscle

A tissue specialized for contraction, composed of smooth muscle fibers (cells), located in the walls of hollow internal organs, and innervated by the autonomic motor neurons. *controls blood flow to a region of the body. *dialate in areas of body that need more blood.

Bicuspid

A valve in the heart that guards the opening between the left atrium and the left ventricle that prevents the blood in the ventricle from returning to the atrium.

Mitral Valve

A valve in the heart that guards the opening between the left atrium and the left ventricle; prevents the blood in the ventricle from returning to the atrium. Alternative name is bicuspid valve.

Tricuspid

A valve that is situated at the opening of the right atrium of the heart into the right ventricle and that resembles the mitral valve in structure but consists of three triangular membranous flaps.

Sympathetic Fight or Flight

icnrease heart rate, heart contractilit

Left Ventricle

the chamber of the heart that receives arterial blood from the left atrium and pumps it into the aorta

Right Ventricle

the chamber of the heart that receives venous blood from the right atrium and pumps it into the pulmonary artery

Blood Supply

=> Metabolic demands=> Tissue gets enough O2/Nutrient (waste removal) hepatic portal vein supplies blood as does hepatic artery (oxygenates liver); blood leaves via hepatic vein → vena cava

Pulmonary Artery

Carries deoxygentated blood from the heart to the lungs

Function of the Coronary Arteries

Carry oxygenated blood from the heart to the he heart muscle

Function of the Coronary Veins

Carry oxygenated blood from the heart to the he heart muscle

Left Atrium

Chamber that receives oxygenated blood from the pulmonary veins and pumps it into systemic circulation.

Pulmonary Vein

Deliver oxygen rich blood from the lungs to the left atrium

Lungs

In pulmonary circulation, blood flows through the heart and

Oxgenated Blood

LT atrium > bicuspid (mitral) valve >LT ventricle >aortic semilunar valve > aorta goes out the body > arteries > arterioles Systemic system

Vena Cava

One of two large vessels (superior and inferior) that return deoxygenated blood to the right atrium of the heart.

Arterole

Smallest kind of artery, all together are major factor in determining MAP itself; arteriolar resistance help determine MAP *dialate to supply blood to organs that need it.

Aorta

The large arterial trunk that carries blood from the heart to be distributed by branch arteries through the body.

Aortic Valve

The semilunar valve separating the aorta from the left ventricle that prevents blood from flowing back into the left ventricle.

Deoxygenated

blood carrying little or oxygen

Oxygenated

blood carrying oxygen

Adequate Perfusion

delivering sufficient blood to maintain the health of all body cells

Deoxygenated Blood

enters the heart through the superior vena cava and interior vena cava to the right atrium to tricuspid valve to right ventricle to pulmonic valve to pulmonary artery to lungs

AV Valve

pair of heart valves which prevent return of blood to the atrium

Pulmonary Valve

valve positioned between the right ventricle and the pulmonary artery