Module 2: Histology: The Study of Tissues

Makes up the linings of organs, the outer layer of skin, the linings of the mouth and stomach, the thyroid gland, pancreas, liver, and forms glands.

Supports, binds, and insulates. Examples include bone, cartilage, tendons, and fat.

Sends and receives signals. It makes up the brain, spinal cord, and nerves.

Allows for movement.

The top surface of epithelial tissue.

The bottom surface of epithelial tissue.

The glue secreted by epithelial cells that attach the basal surface to underlying tissue.

Lacking blood vessels

Refers to blood vessels

The blood vessels in the underlying tissue release oxygen and nutrients which diffuse across the basement membrane into the cells.

The number of layers and the shape of the cells that make up those layers.

A one-layered epithelial lining.

A multilayered epithelial lining.

Flat epithelial cells.

Epithelial cells shaped like a cube.

Epithelial cells shaped like a column.

They offer a minimal barrier through which diffusion of oxygen and nutrients can occur. They are too simple for complex tasks and do not have many organelles.

Diffusion, absorption, and secretion. They have organelles such as rough ER and Golgi apparatuses.

Performs complex secretion and absorption tasks.

Cells whose main job is to produce mucus.

A complex mixture of fluids, proteins, and carbohydrates that covers, protects, and lubricates a free surface within the body.

The skin.

The top layer of skin made up of epithelial tissue that forms a barrier.

The basal cells in skin divide by the process of mitosis, and they push up on the cells on top of them. When the cells reach the surface, they are dead and flake off.