Human Tissues

Ch. 4

Objectives

• Classify and state the defining characteristics of epithelial tissue, connective tissue, muscle tissue, and nervous tissue.

• Describe the anatomy and histology of bone tissue.

Epithelial Tissue

• Covers exposed surfaces

• Lines internal passageways and chambers

• Forms glands

Classes of Epithelia

• Based on shape and layers

Absorption,

secretion, &

filtration

Protection

Simple Squamous Epithelia

Simple Cuboidal Epithelia

Simple Columnar Epithelia

Stratified Squamous Epithelia

Pseudostratified ciliated columnar epithelia

Connective Tissue

• Connect epithelium to the rest of the body

• Provide structure (bone)

• Store energy (fat)

• Transport materials (blood)

Connective Tissue

6 Types• Loose connective tissue

• Dense connective tissue

• Adipose

• Blood

• Cartilage

• Bone

Loose Connective Tissue

Areolar C.T.

Dense Connective Tissue

Fibrous C.T.

Adipose Tissue

Blood

Blood smear

Cartilage

Cartilage types

• Hyaline

• Elastic

• Fibrocartilage

Hyaline

Elastic

Fibrous

Bone

Nerve Tissue

• Specialized for conducting electrical impulses

• Rapidly senses internal or external environment

• Processes information and controls responses

Nerve Tissue

Muscle Tissue

3 types of muscle tissue:

• Cardiac –heart

• Skeletal – attached to bones

• Smooth – internal organs and blood vessels

Cardiac Muscle

Skeletal Muscle

Smooth Muscle