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58 Cards in this Set

  • Front
  • Back

The delivery system of dynamic structures that begins and ends at the heart

blood vessels

carry blood away from the heart

arteries

contact tissue cells and directly serve cellular needs

capillaries

the blood is oxygenated except for pulmonary circulation and umbilical vessels of a fetus

arteries

endothelium with sparse lamina

capillaries

carry blood towards the heart

veins

heart - large veins (capacitance vessels) -small veins (capacitance vessels)- postcapillary venule thoroughfare channel - capillaries

venous system

elastic arteries-(conducting vessels)-muscular arteries (distributing vessels)

arterial system

central blood containing space, which is surrounded by three distinct layers or tunics

lumen

the innermost tunic

tunica intima

it is in intimate contact with the blood in the human

tunica intima

simple squamous endothelium lines the lumen of all vessels, in vessels larger than 1mm of a subendothelial connective tissue basement membrane is present

tunica intima

smooth muscle and sheets of elastin, sympathetic vasometer nerve fibers control vasoconstriction and vasodialation of vessels

tunica media

reduction in lumen diameter as the smooth muscle contracts

vasoconsetriction

increase in lumen diameter as the smooth muscle contracts

vasodialation

collagen fibers protect and reinforce large vessels contain vasa vasorum to nourish the external layer

tunica externa

a system of tiny blood vessels that nourish the more external tissues of the blood vessel wall-its own blood supply

vasa vasorum

largest artery of the body

aorta

supplies the kidney

renal artery

supplies the duodenum and stomach

common hepatic artery

supplies the distal areas of the large intestine

inferior mesenteric artery

supplies pelvic structures

aorta

artery that does not anastomose

renal artery

gives rise to the right common carotid and right subclavian artery

brachiocephalic trunk

supplies the lower limbs

external illiac artery

major supply to the cerebral hemispheres

internal carotid artery

large unpaired branch of the abdominal aorta that supplies the liver, stomach, and spleen

celiac trunk

receives blood from all areas superior to the diaphragm, except the heart wall

superior vena cava

carries oxygen-poor blood to the lungs

pulmonary trunk

drains the scalp

renal artery

runs through the armpit area, giving off branches to the axillae, chest wall, and shoulder girdle

axillary artery

drains the upper extremities, deep vein

subclavian vein

artery usually palpated to take the blood pressure

brachial artery

major artery of the thigh

femoral artery

supplies the small intestine

superior mesenteric artery

carries oxygen rich blood from the lung

pulmonary vein

vessel commonly used as a coronly bypass vessel

great saphenous vein

site where resistance to blood flows is greatest

arterioles

site where exchanges of food and gasses are made

capillaries

site where blood pressure is lowest

large veins

site where the velocity of blood flow is fastest

large arteries

site where the velocity of blood flow is slowest

capillaries

site where the blood volume is greatest

large veins

site where the blood pressure is greatest

large arteries

site that is the major determinant of peripheral resistance

arterioles

the first major branch of the aortic arch is the ___ branch

brachiocephalic trunk

the embryonic mesodermal cells that will eventually form the endothelial lining of blood vessels are called ____

blood islands

the most common form of shock is ___

hypovolemic

a family of peptides called ___ are released by the endothelium and are among the most potent vasoconstrictors known

endothelins

arterial ___ provide alternate pathways for blood to get to an organ

anastomoses

the ___in the carotid sinuses and aortic arch detect increases in blood pressure

barorecptors

___ shock is due to abnormal expansion of blood vessels and a rapid drop in blood pressure

vascular

the third major branch of the aortic arch is the ___ artery

left subclavian

the ___ supply the brain with blood

internal carotid arteries

___ pressure is the difference between systolic and diastolic pressure

pulse

the lowest venous blood pressure is found in the ___

venae cavae

as a blood pressure cuff is deflated on the arm, sounds of ___ can be heard

Korotkoff

___ contain valves to prevent blood from flowing backward

veins