GENERALIDADES DE HISTAMINA Flashcards

1
Q

QUE ES LA HISTAMINA

A

SUSTANICA ENDOGENA
molécula inflamatoria
estimula seecreción de HCL
funciones en el ritmo circadiano, estado de vigilia, sueño, atenciom, memoria, aprendizaje, actividad locomotora, apetito
forma IP3 genera glicerol, ca, PG, ON

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

receptores de histamina

A

H1
H2
H3

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

H1

A

SNC, periferico, glanudlas exocrinas, piel mucosas, vasos perifericos, mus liso
PASAN BHE
Aumento de histamina los vasos se dilatan se genera el rash, la dermatitis, secrecion hialina, prurito
AUMENTAN LA TOS

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

H2

A

Tejido gastrico, cel parietales, miocardio, fibras de conducción
NO PASAN BHE
Minima activas colinergica
Pueden generar arritmias
Secreción de HCL y pepsinogeno

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

H3

A

Autorreceptores inhiben la salida de las celulas
se encuentran en neuronas presinapticas del SNC
estimulan la concienica, atencipon, aprendizaje

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

H4

A

Activan glóbulos blancos

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

SUB GENERACIÓN

A

Actuan sobre las membranas que producen histamina
Ketotifeno
Cromoglicato

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