The Circulatory System Flashcards
Pericardium
Double walled sac that encloses the heart
Circulatory System
Composed of the heart, blood vessels & blood
The upper chambers
Atria
Lower chambers
Ventricles
Receives oxygen-depleted blood from the veins of the body
Right Atrium
Receives oxygen-rich blood from the pulmonary veins from the lungs
Left Atrium
Pumps oxygen-depleted blood to the pulmonary arteries
Right ventricle
Pumps oxygen-rich blood to the major artery from the heart
Left Ventricle
carries blood away from the heart
Artery
the major artery from the heart
Aorta
what artery supplies all other arteries with blood?
The Aorta- At about the level of the navel, the aorta divides into the iliac arteries, allowing blood to travel down each leg.
The vessels that supply the heart itself with blood
Coronary arteries
Arteries on each side of the neck that supply the brain with blood
Carotid arteries
major artery of the thigh and supplies the groin and leg with blood
Femoral arteries
carries blood toward the heart
vein
an artery in the foot. Can be felt on the top surface of the foot on the big-toe side
Dorsalis pedis arteries
travels from the calf to the foot.
Posterior tibial arteries
the major artery of the upper arm
Brachial arteries (used to assess pulse of infant)
the major artery of the arm distal to the elbow joint
Radial arteries
carry oxygen-depleted blood to the lungs, where the blood is oxygenated & returned to the heart for circulation throughout the body
Pulmonary arteries
The arteries are smaller the farther they are from the heart. Each eventually branches into an..
Arteriole (the smallest kind of artery)
carry blood from the arteries into the capillaries
arteriole
tiny blood vessels that connect an arteriole to a venule
Capillary
the smallest branch of a vein
venule
carry oxygen-depleted blood back to the right atrium where it begins circulation through the heart and lungs
The Vena Cavae
carry oxygen-rich blood from the lungs to the left atrium
The pulmonary veins
give the blood it’s color, carry oxygen to the body cells, & carry carbon dioxide away from the cells
Red blood cells
are part of the body’s immune system & help to defend against infection
White blood cells
clotting factors
platelets
this is the liquid part of the blood, which carries blood cells and transports nutrients to all tissues. It also transports waste products to organs where they can be excreted from the body
Plasma
2 ways to of determining the adequacy of circulation are by assessing the
pulse & blood pressure
the wave of blood propelled through the arteries as a result of the contraction of the left ventricle
pulse
The central pulses, closer to the heart are the:
carotid and femoral
The peripheral pulses, farther from the heart are the:
radial, brachial, posterior tibial & dorsalis pedis.
the force exerted by the blood on the interior walls of the arteries
Blood pressure
exerted against the walls of the arteries when the left ventricle contracts
Systolic blood pressure
exerted against the walls of the arteries when the left ventricle is at rest or between contractions
Diastolic blood pressure
the force exerted on the inside of the vessel walls as a result of the blood pressure and volume
Hydrostatic pressure
swelling occurring in the tissues
edema
the delivery of oxygen, glucose, and other nutrients to the cells of all organs and the elimination of carbon dioxide and waste products, which results from the constant adequate circulation of blood through the capillaries
Perfusion
The insufficient supply of oxygen and other nutrients to some of the body’s cells and the inadequate elimination of carbon dioxide & other wastes that result from inadequate circulation of blood.
Hypoperfusion
what % of the oxygen that is carried in the blood is attached to the hemoglobin molecule?
97%
the main source of energy is
Glucose
chemical & physical changes that take place within the cell “with oxygen”
aerobic metabolism
chemical and physical changes that take place within the cell “Without oxygen”
anaerobic metabolism
What is the name of the object that carries oxygen in the blood?
Red blood cells