Tissues flashcards

section 3

3

Matrix

Surrounds cells, provides nutrients and support, helps cells do their job and live.

Epithelial tissue (function)

Covers outside surfaces and lines inner surfaces.

Epithelial tissue (features)

Apical surface - top layer of the tissue; basal lamina - base layer that epithelial cells attach to. little matrix with mostly cells that replace quickly

Connective tissue (function)

Supports, transports, protects, and provides structure.

Connective tissue (features)

High matrix, fewer longer living cells.

Muscle tissue (function)

Contracts to move your body.

Skeletal muscle

Responsible for voluntary actions.

Smooth muscle

Responsible for involuntary actions.

Cardiac muscle

Pumps blood from the heart.

Nervous tissue (function)

Communication between parts of your body.

Nervous tissue (structures)

Neurons - the cells that receive and transmit signals; Glial cells - general housekeeping, like taking out bacteria and modifying pH levels.

Simple epithelium

One layer of cells.

Stratified epithelium

Multiple layers of cells.

Squamous (function + appearance)

Shaped like flat disks or scales; Function: Cheap to make good for materials to pass through.

Cuboidal (function + appearance)

Shaped like cube or square; Function: absorption and secretion.

Columnar (function + appearance)

Shaped like tall columns or rectangles; Function: Absorption, secretion, and cushioning.

Simple squamous (location)

Inner lining of blood vessels, inner lining of lungs, kidney tubules.

Keratinized stratified squamous (location)

Skin.

Non-keratinized stratified squamous (location)

Inside of mouth.

Simple cuboidal (location)

Kidney tubules and internal glands, inner lining of digestive system.

Stratified cuboidal (location)

Sweat and salivary glands.

Simple columnar (location)

Digestive system, female reproductive tract.

Pseudostratified (function + location)

Same function as columnar; Found in respiratory system.

Transitional (function + location)

Function: Allows the tissue to stretch and compress, good for organs that need maximum stretch; Found in the urinary tract.

Areolar (function)

Loose connective tissue; Function: provides general structure.

Reticular (function)

Loose connective tissue; Function: gives support for soft lymphatic organs.

Adipose (function)

Loose connective tissue; Function: Energy storage, insulation, cushioning & protection.

Dense regular (function)

Connective tissue that resists forces in a single direction.

Dense irregular (function)

Connective tissue that resists forces in multiple directions.

Cartilage

Avascular tissue, meaning it has very little blood supply going to it.

Hyaline cartilage

The typical cartilage found in most places in the human body.

Fibrocartilage

Strong! You find it anywhere the body needs to brace for heavy impact.

Elastic cartilage

Very bendy; You find it in areas that need a bit of wiggle.

Compact bone

Gives your body rigid and very strong structure.

Spongy bone

Lightens the weight of the bone, so it is easier for you to move.

Fluid connective tissue

Blood and its components.

Erythrocytes

Red blood cells - transports gasses.

Leukocytes

White blood cells - immune cells.

Platelets

Thrombocytes - aid in blood clotting.

Blood plasma

Liquid matrix of tissue.

Stratified columnar (location)

Very rare, found in various ducts and glands if any.