Lab Blood vessels adn BP
Pulse
the regular, reccurrent expansion and contraction of an artery produces by the waves of pressure caused by the ejection of blood from the left ventricle of heart as it contracts
"shock wave"
pulse
Pulse pressure
the difference between systolic and dialstolic BP
Where is BP the highest?
left ventricle and aorta
posterior tibial artery
medial malleolus of tibia
doralis pedis artery
top of foot
popliteal artery
back of knee
femoral artery
anterior side of hip bone
temporal artery
temple pulse
ulnar artery
area medial to the brachial artery
brachial artery
antecubital fossa
Carotid artery pulse
side of neck
continous capillaries
endothelial cells forming a continuous tube, interrupted by a small intercellular clefts
blood brain barrier
continuous capillaries
most common type
continuous capillaries
fenstrated capillaries
has spores in their endotheliuum which allow small molecules and limited amounts of protein to diffuse
Sinusoids
large porous channels thru which blood cells and various plasma proteins can pass
primarily located in bone marrow, lymph nodes, adn adrenal gland, liver, spleed
sinusoids
tunica interna
inner lining;in direct contact with blood, active role in vessel-related activitu; made up of epithelium
tunica media
composed of smooth muscle
only layer that plays an active role in BP regulation
tunica media
regulates the diameter of the vessel lumen
tunica media
tunica externa
helps anchor vesel to surrounding tissue thru use of elastic and collagen fibers
conducting arteries
largest arteries
aorto connected to the heart
conducting arteries
stores mechanical energy during ventricular systole and then transmit the energy to keep boood moving after the aortic and pulmonary valves close
conducting arteries
muscular (distributing) arteries
medium size arteries
have more smooth muscle in their tunica media
muscular (distributing) arteries
help maintain proper vascular tone to ensure efficient blood flow to the distal tissue beds
muscular (distributing) arteries
ex: barchial artery
muscular (distributing) arteries
arterioles
smallest arteries
branch out from arteries and leads to capillaries
arterioles
has the greatest influence on local blood flow and overal BP
arterioles
"primary adjustable nozzles" across which the greatest drop in pressure occurs
arterioles
Veins
thin walled with less muscle and elastic tissure than arteries
have valves to prevent backflow and keep blood flowing in only one direction
veins