Chapter 4 – Organization And Regulation Of Body Systems

A collection of cells of the same type that perform a common function.

Connective, muscular, nervous, epithelial

Binds and supports parts of the body.

There are two types: dense and loose, but both contain fibroblast cells with a matrix of collagen and elastic fibers

Cartilage and bone are the two main support of connective tissue’s.

The cells lie in small Chambers called Lacunae, separated by a solid, yet flexible, matrix.

Contains only find collagen fibers; most common.example; nose, ends of long bones, and fetal skeleton.

Has more elastic fibers then hyaline cartilage does. Example; the outer ear.

Has a matrix containing strong collagen fibers. Example; disks between vertebrae.

The most rigid connective tissue. Cells are in chambers called Lacunae.

Compact – makes up the shaft of a long bone. Consist of osteons. Spongy – and open latticework with irregular spaces, located at ends of long bones.

Blood and lymph.

Made of a fluid matrix called plasma and cellular components that are called formed elements.

– Red blood cells (Erythrocytes) – White blood cells (leukocytes) – Platelets (thrombocytes)

Is a fluid connective tissue. Clear sometimes yellow fluid derived from the fluids surrounding the tissues. White blood cells congregate in lymph nodes.

Allows for movement in the body.

Skeletal, smooth, cardiac.

Pulls in one direction. Nature: voluntary movement.

Pulls in different directions. Nature: involuntary movement. Example – Peristalsis (wavelike movement in digestive tract)

Pulls in one direction (2 directions).

Allows for communication between cells through sensory input, interrogation of data, and motor output.

Made of dendrites, a cell body and an axon

Carry information towards the cell body

Carry information away from the cell body