Lab#2 Flashcards
What is the coronary sulcus
the R coronery artery sits here, separates right atrium from ventricle
What do the chordae tendineae do
open and close bicuspid and tricuspid valves as needed, prevent prolapse of valves
Describe layers of heart from superficial to deep
Fibrous pericardium Parietal pericardium pericardial cavity epicardium/visceral pericardium myocardium endocardium
How are arteries and veins different
- Veins - valves
- Arteries - THIIIICK tunica media (smooth muscle + elastic)
What tissue is tunica external
fibrous CT
Where does the superior mesenteric ARTERY go
(Pancreas, small intestine, colon)
where does the inferior mesenteric ARTERY go
(colon & rectum)
Where do the coronary arteries originate from
the ascending aorta
What does the coronary sinus do
Delivers deoxygenated blood to the R. Atrium
what is CAD
coronary artery disease - blockage of arteries that supply the heart
what is coronary ischemia
not having enough blood through the coronary arteries (caused by atherosclerosis or a clot)
What is a myocardial infraction
when blood flow decrease or stops to part of the heard, causing damage to the muscle
what is a coronary bypass graft
surgery that increases blood flow to the heart by using a healthy artery or vein, connect it to blocked artery to bypass the blocked part
what is a CVA
cerebrovascular accident- stroke
-Sudden loss of brain cells due to lack of oxygen when blood flow to the brain is impaired
-Symptoms: difficulty: walk, talk,understand
numbness in one side of body
Where is a common place for a CVA
the middle cerebral artery (B/c turbulence)
