Categories: All - absorption - nervous - muscle - epithelial

by Hannah Huang 4 years ago

630

Human Tissues

Human tissues can be categorized into four primary types: epithelial, connective, muscle, and nervous tissues. Epithelial tissues serve as protective linings for organs and cavities, and are involved in absorption and excretion processes.

Human Tissues

Floating topic

Cuboidal

absorption, secretion, excretion

found in glands

Cells that line outer surface of of organs, blood vessels, and inner surfaces of cavities

Columnar

Stomach and intestines
pillar-like cells that absorb and excrete

Squamous

Flat cells between body and environment

Human Tissues

Connective tissue

Adipose
Bone
Binding
Tendons and Ligaments
Erythrocytes
Mast cells/leukocytes

Immune response

Macrophages

phagocytes that engulf microbes and cellular debris

Adipocytes

fat, store energy, insulate

Fibroblasts

structural function, collagen production, wound healing

1. Binding + support 2. Protection 3. Insulation 4. Storing reserve fuel

Nervous tissue

Control
Coordination and control of body activities
ex. neurons

muscle contraction, environmental awareness, emotions, memory, reasoning

Muscle tissue

Skeletal muscle
moves bones, etc
Movement
Smooth muscle
push food through intestines and stomach
Cardiac muscle
contracts heart

Epithelial tissue

Lining