Flashcards in 2nd QUARTER- ANATOMY 2 Exam 3 Deck (83)
a three layered blood vessels that carries blood HIGH in oxygen away from the heart of a living person.
As arteries move away from the heart they lose which layer?
tunica adventitia layer
(tiny arteries) - a two layer blood vessel carrying blood away from the heart of a living person. Only contains tunica media and tunica intima
As the artery continues to move away from the heart the next (2nd) layer lost is?
tunica media (muscle layer)
a single layered blood vessel. Only contains tunica intima
It is at this point that the arterial portion of the blood vascular system unites with the venous portion of the blood vascular system and the process reverse.
In Reverse - The tunica media (muscle layer) reappears
(a tiny vein) -two layered blood vessel carrying blood toward the heart of a living person.
The Tunica adventitia (externa) then reappears
three layered blood vessel that carries blood toward the heart of a living person
Layers making up a vein are ________ than that of an artery.
The capillary level is where life occurs. The walls are so thin blood has to line up to pass.
Veins are the suction side as blood moves toward the heart of a living person. Veins start small and as the venule or tunica media (muscle layer) reappears, it leaves a two layer vein carrying blood to the heart. As blood continues, the tunica intima (interna), third layer, or vein reappears carrying blood toward the heart of a living person. Layers of a vein are thinner and can be ruptured more easily. 85% of blood shifts to the venous side of the body following death. Veins are equipped with valves to prevent the back flow of blood going towards the heart of a living person from going to the lowest point to prevent the back flow.
blood vessels that feed the outer layers of arteries, arterioles, veins, and venules. This is the red squiggly line found on blood vessels by which to differentiate an artery from a nerve.
alternate (secondary) route of blood flow
normal blood pressure
top number of a blood pressure reading. the contraction phase of the cardiac cycle. Contraction of the ventricles
bottom number of a blood pressure reading. the resting phase of the cardiac cycle. Contraction of the two small atria (upper chambers)
low in oxygen blood; most important in embalming to establish and maintain drainage.
receives blood from the lungs
pumps unoxygenated blood to the lungs to pick up oxygen
largest and strongest muscle of the heart; last pump of blood with oxygen to the body via arteries
venous side; blood low in oxygen
artery side; blood high in oxygen
Large artery which first ships blood low in oxygen from the heart toward the lungs
the largest artery in the human body.