H.A. Quiz #5

In what three ways do tissues contribute to homestasis?

1. Support

2. Protection

3. Communication

How does communication allow for homeostasis?

Nerves- nervous tissue send signals throughout the body

How does support allow for homeostasis?

Cartilage (forms ear and nose shapes), skeletal muscle, fibrocartilage supports the vertabrae

How does protein allow for homeostasis?

Bones protect organs, hyaline cartilage protects joints

What are three major types of cartilage

1. Hylaine

2. Fibrocartilage

3. Elastic cartilage

Where are hylaine, fibrocartilage, and elsastic cartilage typically found?

1. Joints

2. Between vertebrae

3. Nose

What are three major types of muscular tissue?

1. Skeletal (attached to bones)

2. Cardiac (walls of the heart)

3. Smooth (walls of organs & vessels)

What is the difference between areolar and adipose tissue?

Areolar = Strength surrounds blood vessels

Adipose = Fat for insulation

What are the four types of tissues?

1. Epithelial

2. Nervous

3. Muscle

4. Connective

Epithelial Tissue:

—> Cells are arranged closely together in continuous sheets of one or more layers

—> These cells are connected to each other on their lateral surfaces

—> The basal surface is anchored in an extracellular matrix

—> Cells have an apical surface

Some Epithelial Tissues may have glands for secretion of cellular products such as?

1. Hormones

2. Digestive juices

3. Sweat glands

Connective Tissue:

—> Most abundant & diverse type of tissue

—> Is Widely spaced cells & Extracellular matrix (fluids, protein fivers & other substances produced by the cells)

What are the three categories of connective tissue?

1. Loose

2. Dense

3. Specialized

Types of connective tissues:

1. Blood

2. Lose connective

3. Adipose

4. Cartilage

5. Bone

6. Dense

Loose connective tissue:

Are not tightly intertwined between cells and are widely dispersed

Areolar

For strength, elasticity & support. Surrounds blood vessels and nerves all over the body

Adipose

Cells store fat for insulation, protection of organs, & energy reserve

Reticular

Thin fibers that form the supporting framework of the liver, kidney, spleen, lymph nodes, and bone marrow

Dense connective tissue

Has thicker fibers & fewer cells

Dense regular

Fibers are arranged in a regular pattern - gives it strength

Dense irregular

Not a regular arrangement of fibers - gives strength in many directions

Elastic

Branched fibers that have the ability to recoil after being stretched

Cartilage

Is dense network of fibers embedded in gel-like substance. Can withstand stress.

Bone tissue

Makes up the skeleton

—> It acts as storage for calcium & phosphorus, produces blood cells, stores fats

What kind of connective tissue is blood?

Liquid connective tissue

—> Blood cells float in an extracellular matrix of plasma

Muscular Tissue:

—> Made of long cells called muscle fibers

—> Produce movement, maintain posture, produce heat

Nervous Tissue:

—> Consists of nerve cells called nuerons & support cells called neuroglia

—> Convert stimuli to electrical signals & transmit them to other areas of the body