Tissues

What are the main shapes of epithelial cells?

Squamous, Cuboidal, Columnar.

What does 'simple' mean in relation to epithelial tissue layers?

It refers to one layer of cells.

What does 'stratified' mean in relation to epithelial tissue layers?

It refers to more than one layer of cells.

What are the main components of blood?

Plasma (liquid), Red blood cells (erythrocytes), White blood cells, Platelets.

What is a primary function of blood?

To transport nutrients, oxygen, wastes and maintains fluid and pH balance.

What is the primary function of muscle tissues?

Movement.

What are the three types of muscle tissue?

Skeletal muscle, Cardiac muscle, Smooth muscle.

What characterizes skeletal muscle tissue?

Voluntary control, multinucleated, striated, long threadlike cells.

What characterizes cardiac muscle tissue?

Involuntary control, mono-nucleated, striated, contains intercalated disks.

What characterizes smooth muscle tissue?

Involuntary control, mono-nucleated, non-striated, lines organs.

What are the main functions of nervous tissue?

Control and communication.

What does a neuron consist of?

Cell body, Axon (1), Dendrites (1 or more).

What is the role of Axons in neurons?

They carry impulses away from the cell.

What is the role of Dendrites in neurons?

They carry impulses toward the cell.

How does tissue repair occur?

Through regeneration or fibrosis.

What is regeneration in tissue repair?

Destroyed tissue is replaced by the same type of tissue and original function is restored.

Which tissues regenerate very well?

Epithelial tissues and bone.

Which tissues regenerate moderately?

Smooth muscle and tendons/ligaments.

Which tissues cannot regenerate?

Cardiac muscle and nervous tissue.