Circulatory Flashcards
Circuit in the body, Carrie’s oxygen rich blood from the left ventricle through body and back to right atrium
Systematic circulation
Oxygen poor blood from right ventricle through lungs to left atrium
Pulmonary circulation
Specialized muscle tissue
Cardiac muscle or myocardium
Biggest artery
Aorta
Supply heart with oxygenated bloody
Coronary arteries
Brings deoxygenated blood to heart
Superior and inferior venae cavae
Brings oxygenated blood to left atrium
Pulmonary veins
Amount of blood moved in one beat
Stroke volume
Amount of blood in 1 min
Cardiac output
Carries blood from the heart
Arteries
Artery Carrie’s deoxygenated blood to the lungs
Pulmonary artery
Smallest branch of an artery
Artérioles
Upper portion of neck
Carotid artery
Groin artery
Femoral artery
At the wrist at the base of the thumb
Radial artery
On the medial aspect of the arm, between elbow and shoulder
Brachial
Posterior to the medial malléoles
Tibial artery
On top of foot
Dorsal artery
Contact between blood and the cells of the tissues
Capillary vessels
Carey blood to heart
Veins
Returns blood from head neck shoulders and upper extremities
Superior vena cava
Carries blood from abdomen pelvis and lower extremities
Inferior vena cava
How dilated or constricted blood vessels are
Systemic vascular resistance
Constricted blood vessel
Decreased size of container increased pressure
Balance of size and pressure
Normal diameter
Increased size of container decreased pressure
Dilated blood vessel
Force of circulating blood against walls of arteries
Blood pressure
Left ventricle contracts pumping blood into aorta
Systole
When ventricle is relaxed and refilling with blood
Diastole
Difference of systolic and diastolic
Pulse Pressure
Amount of blood returning to heart
Preload
Pressure to be overcome when left ventricle contracts
Afterload
Average adult blood amount
6L
Circulation of blood in an organ or tissue
Perfusion
Circulatory stark fails to provide sufficient circulation to maintain normal cellular function
Hypo perfusion aka shock
Heart rate x stroke volume
Cardiac output
Cardiac output x peripheral vascular resistance
Mean/ average bp
Describe how blood flows
Left ventricle to aorta to body and artérioles to capillaries where cellular diffusion occurs to veinulas then veins back to right atrium to right ventricle that pumps blood lungs via pulmonary arteries then oxygenated blood goes to left atrium to left ventricle
Cause constriction of blood vessels
Alpha receptors
Cause increase in the force of contraction of the heart an increased heart rate and bronchial dilation
Beta receptors
Constricts blood vessels skin becomes cool calm and clammy
Alpha 1
Increased heart rate and increased force of heart contraction
Beta 1
Bronchodilation
Beta 2
Decreased heart rate decreased force contraction
Muscarinic