cardiovasular 2

36問 • 2年前

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Enlarged, swollen, twisted veins often causedby damaged or faulty valves that allow bloodto travel in the wrong direction Common factors: pooling of blood in the feetand legs and inefficient venous returnaresulting

varicose veins

Smallest and mostnumerous of the bloodvessels Connects arteries andveins to exchange materials between bloodand tissue cells

CAPILLARIES

Physiology of Circulation

ARTERIAL PULSE BLOOD PRESSURE

The alternating expansiand recoil ofan artery that occurs with each beat ofthe left ventricle creates a pressurewave- a pulse- that travels through theentire arterial system (N) Pulse Rate: 60-100bpm It can be influenced by activity, posturalachanges, and emotions

arterial pulse

You can feel a pulse in any artery lying close to thebody surface by compressing the artery againstfirm tissue; this provides an easy way of counting

Arterial Pulse

radial surfaces at the wrist is routinely used to take a pulse measurement

radial pulse

specific areas compressed tostop blood flow into distal tissues during significantblood loss or hemorrhage

pressure points

is the pressure of blood pushing against the walls of yourarteries. Arteries carry blood from your heart to other parts ofyour body.

blood pressure

measures the pressure in your arteries whenyour heart beats

systolic blood pressure

measures the pressure in your arteries when your heart rests between beats

diastolic blood pressure

less than 120 systolic and 80 diastolic

normal

120-129 systolic and less than 8O diastolic

elevated

130-139 systolic or 80-89 diastolic

Stage 1 hypertension:

at least 140 systolic or at least 90 diastolica

stage 2 hypertension

higher than 180 systolic and/or higher than 120diastolic

hypertensive crisis

can be 90 or less systolic, or 60 or less diastolic, butthese numbers can vary because symptoms help determine when blood pressure is too low

hypotension

two parts of serous pericardium

parietal viscelral

branch from the base of the aorta and encircles the heart at the atrioventricular groove.

coronary arteries

- return or drain deoxygenated blood from the myocardium back to the right atrium

cardiac veins

Most venous blood returns via the

coronary sinus

aorta segments

ascending aorta arch thoracic abdominal

caused by plaque buildup in the walls of the arteries that supply blood to the heart (called coronary arteries) and other parts of the body

coronary artery disease

supplies the brain

internal cartoid artery

supplies skin and muscles of head and neck

External Carotid Artery-skin

supplies the cerebellum, brainstem, spinal cord

vertebral artery

upper body (head & arms)

superior vena cava

lower body

inferior vena cava

superficial drainage of the lateral aspect of the arm and empties into the axillary vein

cephalic vein

-superficial drainage of the medial aspect of the arm and empties into the brachial vein

basilic vein

cephalic and basilic join at the elbow (often chosen as the site for withdrawing blood for the purpose of blood testing)

median cubital vein

receives venous blood from the skin and muscles of the head

external jugular vein

large veins that receive venous drainage from the subclavian, vertebral, and internal jugular veins to form the SVC

Brachiocephalic veins

longest veins in the body, superficial drainage of the leg

great sphenous vein

formed by the union of external and internal iliac vein to form the

common iliac vein

surfaces at the wrist is routinely used to take a pulse measurement

radial pulse

specific areas compressed to stop blood flow into distal tissues during significant blood loss or hemorrhage

pressure points

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Conan Clint · 100問 · 2年前

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