Science 1.3 Flashcards
Describes the movement of blood and lymph around the body which permits nutrient distribution, waste removal, communication and protection
Cardiovascular system / circulatory system
The two integrated circulatory systems
Closed circulatory system
Open lymphatic system
A double loop system consisting of thick walled arteries, thinner walled veins and capillaries
Closed circulatory system
Transports blood away from the heart
Arteries
Transports blood to the heart
Veins
A network that connects arteries to veins in tissues
Capillaries
System that circulates and filters interstitial fluid between cells and eventually drains into the circulatory system
Open lymphatic system
Carries deoxygenated blood from the right ventricle to the lungs and returns oxygenated blood to the left atrium
Pulmonary loop
Carries oxygenated blood from the left ventricle to the body, returning deoxygenated blood to the right atrium
Systemic loop
Names of the major arteries
Coronary artery Common Carotid artery Subclavian artery Brachiocephalic artery Thoracic aorta Pulmonary artery
Major veins
Internal jugular
Brachiocephalc
The two cycles of contractions of the heart
Systole and diastole
The contraction of the heart muscle
Systole
The relaxation of the heart muscle
Diastole
The cause of the atrioventricular valves to close makes “Lub” sound
Ventricular systole
Ventricles are filled with blood during this cycle as semilunar valves close to prevent blood from falling back into the ventricles making the dub sound
Atrial systole
Contains nutrients, hormones and antibodies and other immune proteins
Blood plasma
Contains hemoglobin and transports oxygen from lungs to the rest of the body
Red blood cells
Cells that are divided into two main lineages: leukocytes and lymphocytes
This is critical to the immune system
White blood cells
A subtype of white blood cells that protects the body against disease
Leukocyte
White blood cell found in a lymph.. which moves through the lymphatic system to fight disease
Lymphocyte
Carries deoxygenated blood from the right ventricle to the lungs. Only artery that carries deoxygenated blood
Pulmonary artery
Blood vessels that supply Oxygenated blood and nutrients to the myocardium of the heart
Coronary artery
Only vein that carries oxygenated blood; carries blood from the lungs to the heart into the left atrium
Pulmonary vein
Vein that carries blood away from the liver
Hepatic vein
Supplies blood to the head and face
Carotid artery
Supplies blood to the brain
Internal carotid artery
Carries blood from the lower limbs of the body and empties it into the right atrium
Inferior vena cava
Supplies blood to the spinal column and brain
Vertebral artery
Receives deoxygenated blood from the superior vena cava and dumps into the right ventricle
Right atrium
Chamber that pumps deoxygenated blood into the pulmonary artery
Right ventricle
Receives oxygenated blood from the pulmonary veins
Left atrium
Pumps oxygenated blood to the aorta
Left ventricle
Distributes oxygenated blood to all parts of the body through the systemic circulation
Aorta
Valve that prevents blood from moving from the right ventricle into the right atrium during ventricular contraction
Tricuspid valve
Valve that Prevents blood from moving from the pulmonary trunk into the right ventricle during ventricular relaxation
Pulmonary valve
Valve that prevents blood from moving from the left ventricle into the left atrium during ventricular contraction
Mitral valve
Valve that Prevents blood from moving from the aorta into the left ventricle during ventricular relaxation
Aortic valve
