MODULE 3 : CVS Flashcards
(36 cards)
Transverse lines at the ends of the branching gibers
INTERCALATED DISCS
Thickest and most prominent layer with strands of C.T. and vascular network in between cells
MYOCARDIUM
Characteristic of Cardiac Muscle Tissue
- striated, involuntary
- cylindrical / elongated, w/ branching ends
- mono- / binucleated
Visceral layer of pericardium
EPICARDIUM
Most prominent anchoring sites
FASCIA ADHERENS / JUNCTIONS
Cardiac cells binding
DESMOSOMES / MACULA ADHERENS
For ionic continuity
GAP JUNCTIONS
Inter ventricular Septum; muscle attachments
SEPTUM MEMBRANACEUM
Found between arterial foramina and AV canals
TRIGONA FIBROSA
Site of principal attachment for the cardiac muscles and AV Valves
ANNULI FIBROSI
Functions as :
- Anchors and supports heart valves
- firm points of insertion for cardiac muscles
CARDIAC SKELETON
Pacemaker of the heart; sulcus terminalis area
SA NODE
Below posterior leaf of aortic valve
AV NODE
Trigonum Fibrosum Dextrus
Bundle of His
Anastomosing channels of small caliber vessels providing interchange of substances
CAPILLARIES
Separates T. Media from T. Adventitia in arteries
EXT. ELASTIC LAMINA
Vasodilator
Prostacyclin, NO2
Vasoconstrictor
ENDOTHELIN
3 layers of Large Arteries :
T. INTIMA :
A. ENDOTHELIUM : SS
B. SUBENDO : thin loose CT
T. MEDIA : thickest
T. ADVENTITIA : underdeveloped w/ vasa vasorum
Hardening of the arteries
ARTERIOSCLEROSIS
A condition in the arteries where in there are Fibrous deposits (atheroma) and thickening of T. Intima
ATHEROSCLEROSIS
A condition wherein there is dilation / weakening of the wall
ANEURYSM
Type of artery which functions as conducting / elastic arteries
LARGE ARTERIES
aorta / pulmonary arteries
Type of artery which functions as distributing / muscular arteries
MEDIUM SIZED ARTERIES