Gap junctions Flashcards

1
Q

—places where cells attach other cells of cells attach to the extracellular
matrix

A

Cell junctions

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2
Q

Cell junctions contain a variety of

A

cell adhesion molecules (CAMs) – membrane-spanning proteins that allow attachment to other cells

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3
Q

communicating junctions

A

Gap junctions

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4
Q

occluding junctions

A

tight junction

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5
Q

Regulate paracellular transport pathway – Two types of cell-cell junctions that contain cadherins
▪ Adherens junctions
▪ Desmosomes – Cell-matrix junctions that contain integrins
▪ Hemidesmosomes
▪ Focal adhesion

A

anchoring junctions

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6
Q

anchoring junctions

A

Regulate paracellular transport pathway – Two types of cell-cell junctions that contain cadherins
▪ Adherens junctions
▪ Desmosomes – Cell-matrix junctions that contain integrins
▪ Hemidesmosomes
▪ Focal adhesion

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7
Q

2 types of anchoring junstions

A

desmosomes, hemidesmosome

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8
Q

adherins junstions

A

desmosome

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9
Q

focal adhesions

A

hemidesmosomes

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10
Q

Connexons

A

embedded proteins

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11
Q

permit
the free diffusion of
ions and small
molecules between
two cells
made up of proteins called connexons

A

gap junctions

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12
Q

attach a cell
to extracellular structures, such
as the protein fibers in the
basement membrane

A

hemidesmosomes

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13
Q

Things dont pass easily though this,
prevent things from entering from the edges of the cells. (paracellular pathways)Preve

A

tight junctions

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14
Q

allow for attachment. Examples of transmembrane proteins. Pass through membrane and are found on both surfaces

A

cell adhesion molecules

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