Aparato Cardiovascular Flashcards

1
Q

A ELASTICA o conductoras

Funcion

A
  • penetraciones
  • fibras elasticas
  • 50-75 capas fenestradas de elastina
  • poco m liso
  • fibras de colageno
  • vasos sang y linf = vasa vasorum
  • FUNCION: <3 → (sangre) → a musculares
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

A ELASTICA (grande) ≠ A MUSCULAR (mediana)

A

A MUSC tiene mas m liso

  • menos elastina en tunica media
  • tiene memb elastica interna
  • tunica adventicia gruesa
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

SISTEMA PORTA que es y ejemplos

A

Vasos sanguineos interpuestos entre 2 redes capilares
-capilar → vasos sang → capilar

PORTA VENOSO: hipofisis y higado
PORTA ARTERIAL: riñon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

CAPILARES

A

CAP CONTINUOS: 80%
-endotelio y memb basal continuos

CAP FENESTRADOS:
-endotelio discontinuo (poros) y memb basal continua

CAP SINUSOIDES:

  • endotelio discontinuo (poros) y memb basal discontinua o falta por completo
  • son canales vasculares y mayor calibre
  • presentan macrofagos
  • rodeado por fibras reticulares
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Ubicacion CAPILARES

A

CAP CONTINUOS: musc, SNC, t conectivo

CAP FENESTRADOS: glomerulo renal, gland endocrinas

CAP SINUSOIDES: higado, bazo, medula osea, algunas gland endocrinas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

VENA MEDIANA

A
  • tunica media: 3-4 capas de m liso

- adventicia: mas gruesa con fibras colagenas y elasticas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Diferencia en VENA MEDIANA

A

Valvulas venosas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

MIOCITOS AURICULARES que son

A

Sintetizan hormonas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

FIBRAS DE PURKINJE

A
  • UBIC: subendotelio en endocardio (subendocardio ventricular
  • celulas musc cardiacas modificadas: miocardiocitos
  • forman has AV y sist cardionector → dar electricidad
  • menos miofibrillas
  • mas glucogeno perinuclear: +gruesa +palida
  • separados por discos intercalares
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Toda la sangre vuelve al corazon por SIST VENOSO?

A

Si

How well did you know this?
1
Not at all
2
3
4
5
Perfectly