circulatory worksheet Flashcards
Small arteries that deliver blood to capillaries
Arterioles
The largest artery in the human body
Aorta
Layer of simple squamous epithelium lining all blood vessels
Endothellium
Cerebral circulation is the route for what
Blood to Brain
Capillaries with no gaps between endothelial cells
Present in nervous and muscle tissue
Continuous Capillaries
Middle layer of blood vessel walls, consisting of smooth muscle cells and elastic and collagen fibers
Tunica Media
Largest diameter arteries; often called conducting arteries
Elastic Arteries
Deposittion of a fat-like substance containing cholesterol in walls of arteries to form plaques
Atherosclerosis
Degenerative changes in arteries that make them less elastic
Arteriosclerosis
Blood passes from right ventricle directly into this vessel
Pulmonary Valve
Portion of the aorta that gives rise to the right and left coronary arteries
Ascending Aorta
Longest part of the aorta, running from the aortic arch to the common iliac arteries
Descending Aorta
Vein that returns blood from the head, neck, thorax, and upper limbs to the heart
Superior Vena Cava
______________is a bulge in a weakened blood vessel wall
Aneurysm
Vessels with the lowest resistance
Veins
Major means by which nutrients and waste products are exchanged across capillary surfaces
Diffusion
Given the following vessels: aorta inferior vena cava pulmonary arteries pulmonary veins
Which vessels carry oxygen-rich blood
(Pick two)
Aorta
Pulmonary Veins
Which artery is most commonly used to take the pulse near the wrist basilar brachial cephalic radial ulnar
Radial
Facts about Pulse Pressure
The difference between systolic and diastolic pressure.
Increases when stroke volume increases.
Increases as vascular compliance decreases
Facts about veins
Increase their volume because of their large compliance
A sudden release of epinephrine from the adrenal medulla
Increases heart rate
Increases stroke volume
Causes vasoconstriction in visceral blood vessels
The outer layer of the arteries is the:
Tunica Adventitia
also called Tunica Externa
The ability of the arteries to withstand a sudden large increase in pressure is accomplished by the:
Elasticity of the smooth muscles
The major structural difference between arteries and veins is that in the veins, the:
Walls are thinner, Valves are present
The contraction of skeletal muscle:
Assist in venous return
Swollen Veins
Varicose Veins
Bleeding in blood vessels in brain
Brain Hemorrhage
Varicose veins in the walls of the recturm
Hemorrhoids
Bluish discoloration of the skin
Cyanosis
Blood in veins is kept flowing in one direction by the presence of
Valves
The maximum pressure in the artery, occurring during ventricular contraction is:
Systolic Pressure
Blood pressure is highest in the:
Artery
The Pulmonary Vein enters the:
Left Atrium
The abdominal aorta ends with the right and left______________arteries
Common Iliac
What is the pulse site used for CPR
Carotid Artery (in the neck)
Where do you take the most ACCURATE heart rate
Femoral Artery (groin)
