Circulation Flashcards
Oxygenated blood is found on the ______ side of the heart
Left
The heart is able to beat without the control of the brain - therefore heartbeat is said to be _____
Intrinsic
These muscles can contract to stop the blood flow to capillary beds in certain areas of the body
Sphincter
The percentage of blood in the arteries at any one time
Twenty
These veins return blood from the head
Jugular
Another name go the left atrioventricular value
Bicuspid
The wall which divides the two sides of the heart
Septum
_________ circulation occurs on the left side of the heart
Sistemic
Total cords sectional area of the blood vessels is highest in the ____ beds
Capillary
Substances tend to move into the cells on the _________ side of the capillaries
Arterioles
The right_____ valve separates the right atrium and ventricle
Atrioventricular
Smaller blood vessels which carry blood back to the heart
Venues
The _____ Arteries carry blood to the head
Carotid
The main part of the heart ( mostly composed of muscle)
Myocardium
One of the layers found in arteries which allows them to constrict or dilate to modify blood pressure
Smooth muscle
The _____ Artery takes blood from the heart to the small intestine
Mesentery
These arteries and veins take blood to and from the arms
Sublcavian
The largest artery in the body
Aorta
_____ is affected by stress, oxygen levels, exercise, and blood from the heart
Heart rate
These veins return blood from the head
Jugular
Maximum concentration of the ventricles - highest blood pressure
Systole
The _____ Vena cava returns blood from the parts of the body that are below the heart
Inferior
Smaller vessels that carry blood away from the heart
Arterioles
The ____ bode Is known as the pacemaker, as it initiate the heartbeat
SA
The ______ receives blood returning from the lungs
Left atrium
The number of layers of tissue in arteries
Three
Contractions in these muscles help to push blood through the veins and back to the heart
Superior
The pulmonary arteries carry blood to the _____
Lungs
The aortic ______ Is where blood first leaves the left ventricle
Arch
The aorta divides into the ____ arteries in the pelvic region
Iliac
One of the layers found in the arteries which allows them to stretch during a pulse
Elastin
The _____ arteries take blood to the heart
Coronary
A device used for measuring blood pressure
Sphygmomanometer
Substances tend to move out of the cells and into the blood on the _______ Side of the capillories
Venous
Large vessels that carry blood away from the heart
Arteries
Tiny blood vessel’s which deliver nutrients to individual cells
Capillaries
________ pressure is created by the presence of salt and plasma proteins found in blood
Osmotic
These muscles can contract to stop the blood flow took to capillary beds in certain areas of the body
Sphincter
The type of muscle found in the heart
Cardiac
Larger blood vessels which carry blood back to the heart
Veins
The most muscular of the heart chambers
Left ventricle
_________ Circulation occurs on the right side of the heart
Pulmonary
The percentage of blood in the arteries at any one time
Twenty
Structures in veins which prevent the backflow of blood
Valves
________ is lowest in the venules and veins
Glood pressure
The _____ Fibres carry electrical signal down to the ventricles to initiate contraction
Purkinje
The hepatic _______ Bain takes blood from the small intestine to the liver
Portal
The chamber of the heart which receives blood from the rest of the body
Right atrium
Relaxation of the heart muscle - lowest arterial blood pressure
Diastole
A membrane which surrounds the heart
Pericardium
The expansion of the blood pressure during systole
Pulse
The _____ node receives a signal from the SA node and initiates ventricular contraction
AV
The heart is able to be without the control of the brain - therefore, heartbeat is said to be _______
Intrinsic
The pulmonary ____ Valve prevents the backflow of blood as the right ventricle contracts to pump blood to the lungs
Semilunary
The _____ Arteries and veins take blood to and from the kidneys
Renal
Capillaries are only ______ Cell layer thick in order to allow the most efficient transport of materials across their walls
One
Sound made by the heart valves during atrial contraction
Lub
