wall that that divides the heart into left and right sides
the inferior tip of the heart
control the flow of blood through the heart. Tricuspid valve, pulmonary valve, mitral valve, and aortic valve
between the right atrium and right ventricle. It has three triangular cusps.
Between the right ventricle and and the pulmonary trunk
between the left atrium and left ventricle. It has two cusps adn is also known as the biscuspid valve.
between the left ventricle and the aorta.
ropelike connective tissues attached to the tricuspid and mitral valve leaflets.
the muscular layer of the heart.
innermost layer for cells that lines the atria, ventricles, and heart valves
outermost layer. A membrane that surrounds the hear as the pericardial sac and secretes pericardial fluid.
contains the lungs and the mediastinum
and irregularly shaped central area between the lungs
aorta, superior vena cava, inferior vena cava, pulmonary arteries and veins
close relationship between the heart and the thoracic cavity
refers to the blood vessels associated with a particular organ
a smooth inner layer that promotes the flow of blood
the large blood vessels that branch into smaller arteries
when the smooth muscle contracts constricting the lumen of the artery
when the smooth muscle relaxes, increasing the size of the lumen
the smallest blood vessels in the body
carry blood back to the heart from the body
the largest artery in the body
travels from the heart in a superior direction
branch off directly from the ascending aorta to the heart muscle
an inverted u-shaped segment
bring oxygenated blood to the neck, face, head and brain
bring oxygenated blood to the shoulders
in the area of the armpit. divides into the brachial artery
brings blood to the upper arm, then into the radial and ulnar arteries
brings blood to the lower arm
brings blood to the lower arm
travels inferiorly through the thoracic cavity. Brings blood to the esophagus, muscles between the ribs, diaphragm, upper spinal chord, and back
brings blood to the organs in the abdominopelvic cavity - stomach, liver, gallbladder, pancreas, spleen, small intestine, large intestine, adrenal glands, kidneys, ovaries testes, and the lower spinal cord.
bring blood to the hip and groin
brings blood to the upper leg
near the knee joint
brings blood to the front and back of the lower leg
brings blood to the outside of the lower leg
originate from the pulmonary trunk
superior vena cava
carries blood from the head, neck, arms, and chest to the right atrium
inferior vena cava
carries blood from the rest of the body, except lungs, to the right atrium
carry blood fro the lungs to the left atrium of the heart
carries blood from the head to the superior vena cava
carries blood from the intestines to the liver
carry blood from the leg to the groin
carry blood from the leg to the vein
arteries, arterioles, capillaries, venules, veins everywhere in the body except in the lungs
arteries, arterioles, capillaries, venules, and veins going to, within, and coming from the lungs
a small oval opening on the septum between the atria that allows some of the oxygenated blood to enter the left side of the heart where it is immediately pumped out to the body
a connecting blood vessel between the pulmonary trunk and the aorta that allows the rest of the oxygenated blood to go into the right ventricle and pulmonary trunk but then diverts it to the aorta.
sinoatrial node (SA node)
the pacemaker of the heart that initiates the electrical impulse that begins each heartbeat.
atrioventricular node (AV node)
a small area in the right atrium near the interatrial septum. Receives electrical impulses from the SA node
bundle of His
part of the conduction system of the heart after the AV node that splits into the right and left bundle branches
a network of nerves extending from the bundle branches