Cardiovascular System

S. K. Kim

endothelium smooth

muscleadventitia

capillary

arteriole venule

small artery small vein

Muscular (medium size)

(1-3 layers of sm. muscle)

(Incomplete layer of sm. Muscle)

(3 or more layers of sm. Muscle)

(media = adventitia) medium/large vein

(media < adventitia)

(thin layer of sm. Muscle)

artery

vesselslymphatic vessel

Arterial side vessels have a more regularly shaped lumen which is smaller in diameter, relative to the vessel diameter, than do the vessels on the venous side.

Longitudinal bundles of smooth m. in adventitia.

valves

valves

Capillaries #100 , #102, #98, #305Capillaries #100 , #102, #98, #305

venulevenule

arteriolearteriole

Small arterySmall artery

small veinsmall vein

??

??

Muscular arteryMuscular artery

veinvein

Arterioles and venules #40Arterioles and venules #40

#30#30, #40, #42, #93, #95, #40, #42, #93, #95

#95#95

MyocardiumMyocardium

Capillaries #098-1

Arteriole and venule #40Arteriole and venule #40

ArterioleArteriole

VenuleVenule

#304 medium-sized artery and vein

valves

#303 medium artery#303 medium artery

#303 medium vein#303 medium vein

IntimaIntima MediaMedia AdventitiaAdventitia

I.E.L.I.E.L. E.E.L.E.E.L.

VeinVein

ArteryArtery

MediaMedia

MediaMedia

AdventitiaAdventitia

AdventitiaAdventitia

IntimaIntima

IntimaIntima

#92#92

T. media: v<a T. adventitia: v>a

T. media: v<a T. adventitia: v>a

#92, muscular artery

#92, muscular artery

Intima: endothelium subendothelial CT

Intima: endothelium subendothelial CT

Media: I.E.L. smooth m. collagen f. elastic f. E.E.L.

Media: I.E.L. smooth m. collagen f. elastic f. E.E.L.

Adventitia:

dense irregular c.t.

vaso vasorum

Adventitia:

dense irregular c.t.

vaso vasorum

Vein #95

Longitudinal smooth muscle bundles

Aorta #36 (H&E), #88 (Aldehyde-Fuchsin)

Aorta #36 (H&E), #88 (Aldehyde-Fuchsin)

Elastic laminaeElastic laminae

Smooth muscle cellsSmooth muscle cells

Endothelial cellsEndothelial cells

IntimaIntima

(Subendothelial CT)(Subendothelial CT)

Intima and media of the aortaIntima and media of the aorta

Vasa vasorum

#29 Lymph vessels (valves)

Blood and lymphatic vessels #29Blood and lymphatic vessels #29

Lymphatic ductLymphatic duct

Small veinSmall vein

Netter pl. 201Netter pl. 201

Rt. Atrium and dauricleRt. Atrium and dauricle

Rt. ventricleRt. ventricle

Lt. ventricleLt. ventricle

Pulmonary trunkPulmonary trunk

Aortic archAortic arch

Superior vena cavaSuperior vena cava

Cardiac circulation and valvesCardiac circulation and valves

Tricuspid valveTricuspid valve

Mitral valve

Mitral valve

Aortic (semilunar) valve

Aortic (semilunar) valve

Ross, et al. p. 328Ross, et al. p. 328 Netter p. 212Netter p. 212

Papillary musclePapillary muscle Chorda(e)

tendineaeChorda(e) tendineae

A-V (tricuspid) valve

A-V (tricuspid) valve

AtriumAtrium

VentricleVentricle

Coronary sulcusCoronary sulcus

Coronary vesselsCoronary vessels

Cardiac (fibrous) skeleton

Cardiac (fibrous) skeleton

Epicardial fatEpicardial fat

#98-N (Right chambers)#98-N (Right chambers)

A-V valve #98

Interventricular septum Interventricular septum

Aortic valveAortic valve

Interventricular septumInterventricular septum

Tricuspid valveTricuspid valve

Chordae tendineae

Chordae tendineae

Papillary musclePapillary muscle

Aorta (wall)Aorta (wall)

#99M#99M

Cardiac skekeleton

Cardiac skekeleton

Aortic valve and Left VentricleAortic valve and Left Ventricle

Mitral ValveMitral Valve

Aortic ValveAortic Valve

Slide #100Slide #100

Slide #102Slide #102

Left atrium and ventricleLeft atrium and ventricle

#100#100

#102#102

Conduction system

Wheater’s p. 154

Bundle of His

#99M

Bundle of His #99 Bundle of His #99

Purkinje fibers #98 Purkinje fibers #98

Cardiac muscle (fibers) and Purkinje fiberslongitudinal section Cross section