Blood Vessels Flashcards
Blood vessel
-are always defined based on the direction the blood within them is flowing. Away from the heart or towards the heart
- they are never defined based on what type of blood they are carrying, does not matter if its oxygenated or deoxygenated
Anastomosis
-is an alternate pathway for blood flow (via a different blood vessel), typically used if there is blockage in the usual pathway
trunk
-short thick artery
common
-any time a blood vessel name contains the word common, it is going to have external and internal vessels attached to it
Directional study of blood
-blood vessels should always be studies by their direction of blood flow, arteries away from the heart and veins back to the heart. Arteries branch or diverge, veins converge
Color identification on models
red- arteries
blue- veins
purple- capillaries
green- lymphatics
yellow- nerves
Portal system
-is a blood circuit that involves two separate capillary beds
ex: hepatic portal circuit
cardiopulmonary
flow of blood from right side of heart to lungs to left side of heart
coronary
-flow of blood to and from myocardium (through coronary arteries and cardiac veins
Hepatic portal
-flow of blood from small intestines, through liver (for filtration) and on to the heart via inferior vena cava
systemic
-flow of blood from left side of heart to all tissues of the body to right side of the heart
ex: flow of blood through the body system
cerebral
-flow of blood to the base of the cerebrum and up through the cerebral lobes (the circle of Willis) is an important anastomosis in the brain
renal
-flow of blood to and through the kidney and its functional units: the nephrons
fetal
-flow of blood within the fetus from mother and back
-gas exchange occurs at placenta, not in the lungs
-fetal blood shunted away from the lungs
- changes at birth, some structures will later close off and become fibrous scar tissue in post-natal life
ductus arteriosus
-a short shunt in the pulmonary trunk where blood bypasses lungs (pulmonary trunk to aorta directly)
-in the adult it is called ligamentum arteriosum
foramen ovale
-a huge hole in the interatrial septum where blood bypasses lungs (R. atrium to L. atrium directly)
-in adults called fossa ovalis
umbilical artery (2)
-brings deoxygenated blood to the placenta from the fetus
-in adults called medical umbilical II
umbilical vein (1)
-brings oxygenated blood to the fetus from the placenta
- in adults called ligamentum teres (round I)
ductus venosus
-a shunt that bypasses the fetal liver, carrying oxygenated blood directly to the interior vena cava
-also called ligamentum venosum
What are two arteries formed by the division of the brachiocephalic trunk ?
Right common carotid artery and right subclavian artery
What are two paired arteries serving the brain?
vertebral arteries and internal carotid artery
What is the largest artery of the body?
aorta
What are the arteries that supply the diaphragm?
superior and inferior phrenic arteries
What are the two arteries that supply the myocardium?
coronary arteries
What are the arteries that supply the ovaries?
ovarian arteries
What are the arteries that supply the testes?
testicular arteries
What is the major artery serving the arm?
brachial artery
What is the arterial trunk with three major branches serving the liver, spleen, and stomach?
celiac trunk
What is the artery that supplies most of the small intestines?
superior mesenteric artery