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What epithelial structure does the epidermis have?

Cuboid

Stratified Squamous (correct)

Columnar

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What epithelial structure does the liver have?

Cuboid (correct)

Columnar

Stratified squamous

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What epithelial structure does the GI tract have?

Cuboid

Columnar (correct)

Stratified Squamous

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Na+ Ion channels are on the (insert here) surface

Apical Signup and view all the answers

Na+/K+ ATPase are on the (insert here) surface

Basolateral surface Signup and view all the answers

What types of folding can epithelial achieve?

Straight, coiled and branching Signup and view all the answers

What is an example of polarity with organelles?

Basal layer of the kidney proximal tubules having mitochondria Signup and view all the answers

What is microvilli for?

Increasing SA Signup and view all the answers

What is cilia for?

Motility Signup and view all the answers

What are basal folds for?

Increase SA Signup and view all the answers

What is an example that Occludins modulate in tight junctions?

Paracellular permeability Signup and view all the answers

What claudin is found in leaky epithelial?

Claudin 2 Signup and view all the answers

What Claudin is found in the epidermis?

Claudin 1 Signup and view all the answers

What Claudin is found in the cochlea?

Claudin 4 Signup and view all the answers

What Claudin is found in the respiratory tract, urinary tract, GI tract?

Claudin 3 Signup and view all the answers

What are the examples of JAMs (Junction Adhesion Molecules)

Ig superfamily CAMs, and N-CAMS Signup and view all the answers

Ig superfamily CAMs are Ca2+ dependent?

False Signup and view all the answers

What interactions do Ig Superfamily CAMs do?

Homophilic and heterophilic interactions Signup and view all the answers

Examples of such interactions?

Axon guidance, cell migration Signup and view all the answers

Ig Superfamily CAMs associated proteins: Receptor Tyrosine (insert here), and Receptor Protein Tyrosine (insert here)

Kinase, and Phosphatase Signup and view all the answers

What happens when there is no N-CAM in a mouse?

Neuronal precursors do not migrate to olfactory bulb, making it smaller Signup and view all the answers

High sialic acid does what to N-CAMS?

Gives it low affinity, rearrangement Signup and view all the answers

Low sialic acid does what to N-CAMs

High affinity, stable tissues Signup and view all the answers

Cadherins are _ dependent, and are _______

Ca2+, homophobic Signup and view all the answers

What role do Cadherins have?

Cell adherence, especially in histology Signup and view all the answers

What are the non-classical cadherins that are heterophilic?

Desmogleins and Desmocollins Signup and view all the answers

What are the non-classical cadherins that make desmosomes appear darker in appearance?

Plakoglobins and Plakophilins Signup and view all the answers

What do Catenins do?

Link cadherins to actin cytoskeleton, and send signals to the nucleus - altering gene expression (B-catenin) Signup and view all the answers

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