uniones celulares Flashcards

1
Q

uniones estrechas sus proteínas

A

claudinas

ocludinas

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2
Q

claudinas

A

forman poros para el paso de iones

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3
Q

ocludinas

A

cierra el espacio intracelular

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4
Q

uniones estrechas definicion (zona occludens)

A

establecen uniones muyyy fuertes y estrechas que casi no dejan espacio intracelular

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5
Q

ejemplo de uniones estrechas

A

epitelio intestino

barrera hematoencefálica

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6
Q

funciones de las uniones estrechas

A

mantienen fuertemente cohesionadas las células

impiden función lateral de moléculas de la membrana celular

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7
Q

Uniones adherente proteína principal

A

Cadherinas E

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8
Q

Cadherinas E

A

se une con filamentos de actina

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9
Q

uniones adherentes

A

permiten que se unan con células vecinas

permite la formación de las uniones estrechas

movimientos coordinados de poblaciones celulares

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10
Q

Desmosomas

A

forman uniones en forma de disco con las células vecinas

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11
Q

proteínas de los desmosomas

A

desmogleinas y desmocolinas

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12
Q

función de desmosomas

A

unir células vecinas mediante filamentos intermedios

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13
Q

hemidesmosomas

A

uniones entre célula y Matriz extracelular

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