Histology 101

Question 1

Midline sections (in round objects)

Answer 1

Correct shape and size

Question 2

Tangencial sections (in round objects)

Answer 2

Not enough to determine real shape.

Question 3

Longitudinal sections (in tube shapes)

Answer 3

Make U shape, single and multilayered cells.

Question 4

Transverse sections (in tube shapes)

Answer 4

Round shape, single layer of cells.

Question 5

Tangencial sections (in tube shapes)

Answer 5

Oval shape, multilayered cells, no lumen.

Question 6

Oblique sections (in tube shapes)

Answer 6

Oval shape, multilayered cells.

Question 7

Lumen

Answer 7

Cavity or space inside a tube and tube like shapes.

Question 8

What is the cellular membrane made off?

Answer 8

Phospholipidic bilayer structured in a fluid mosaic model where the polar heads face outwards and the nonpolar tails face inwards.

Question 9

What is the function of the selective permeability of the membrane?

Answer 9

Maintenance of constantibility in the intercellular environment.

Question 10

Receptor-mediated endocytosis

Answer 10

Selective pinocytosis and phagocytosis by the use of specific receptors.