Cell biology
•Animal cell types and their classification
Animal tissue
4 types
•Epithelial tissue
•Connective tissue
•Muscle tissue
•Nervous tissue
Epithelial tissue
1. Superface epithelium
• Location: skin , mucosal layer of eyes, mouth, stomach, intestine and
etc.
• Function: protection, secretion, metabolism
• Example in human body: protection and absorption of substances in
the intestines and kidneys
2. Grandular epithelium
• Location- glands(salivary, sweat glands)
• Function: biosynthes and release of different substanses(saliva,
sweat and etc.)
3.Ciliated epithelium
Location: has outgrowths in the form of cilia and can be found in
respiratory tract. Cilias remove dust and small particles from
respiratory tract
Function: protective
Connective tissue
Can be liquid (blood or lymph) or solid(bones, fat and etc.)
Location: blood, lymph, bones, fat and etc.
Function: transport,protection
•Muscle tissue
Skeletal muscle tissue
• Location: Skeletal muscle includes the tissue fibers attached to the
skeleton or bones and is responsible for all movements.
• Function: movement
Cardiac muscle tissue
• Location: heart
• Function: heart contraction
• Smooth muscle tissue
Location: stomach, urinary bladder, arteries and etc.
Function: contraction of stomach, urinary bladder, arteries and etc.
Nervous tissue
Cells of nervous system are called neurons
Location: brain, spinal cord, nerves
Function: nervous tissue provides the interaction of tissues, organs and
systems of the body and their regulation.