A+P Quiz 3

the large arteries close to the heart. esp aorta

the major named arteries. brachial etc.

feed capillary beds

arteries, veins, capillaries

carries blood away from the heart, high pressure thicker walls

carry blood to the heart, thinner walls low pressure

functional vessels of the system, thin walled networks

tunica intima, tunica media, tunica externa

inner epithelial layer

smooth muscle that control vessel diameter. constriction vs. dilation

outer, connective tissue

veins, venules, venous sinuses

correspond to the muscular arteries. major names veins: jugular. those interior to the heart have valves to prevent back flow

correspond to arterioles. drain capillary beds.

dural sinuses of the brain, coronary sinus of the heart

continuous, fenestrated, sinusoid

the endothelium is w/ out pores, the most common kind of capillary in muscles and skin/brain.

the endothelium is w/ pores, found whenever absorption is the main function (villi of the small intestine, kidneys, endocrine glands)

have very large openings, are very often lined w/ macrophages even rbc's can pass. found in liver, spleen, bone marrow.

networks of capillaries that act to deliver oxygen and nutrients to body tissues

terminal arteriole, vascular shunt, post capillary venule, true capillaries

feeds the bed

continuous w/ the terminal arteriole on one side, the post capillary venule on the other side

drains the capillary bed

these branch from the vascular shunt and are the functional units of the circulatory system

veins that receive nutrients and toxins from the digestive organs and deliver them to the liver for processing before they enter the gencirc

blood leaves the liver through hepatic veins and into the inferior vena cava

75 beats/min

120/80

16 breaths/min

37 degrees C (98.6 degrees F)

pressure surge in the arteries w/ each contraction of the left ventricle. may be taken at pulse points or pressure points

regarding the entire body this = cardiac output. it can also refer to flow through a particular organ

pressure exerted by blood on the wall of a blood vessel. usually refers systemic arterial pressure, measured in mmhg

pulmonary arteries 24/8, capillary beds constant low pressure 20, venous system constant low pressure -20

the friction that opposes blood flow

see flash card now bitch

blood viscosity, total length of blood vessels, diameter of blood vessels

the thickness, stickiness. increased viscosity leads to increased resistance

increase, increases resistance

reduced diameter, increases resistance

R=1/r^4

cardiac output, peripheral resistance, blood volume. an increase in any of these factors increases blood pressure

causes decrease in elasticity of the artery because the cells of blood vessels wall die and are replaced by scar tiss.

see flash card bitch

see flash card bitch

see flash card bitch