1. Types of animal tissues
Other Animal Tissues
1) Epithelial tissue
2) Connective tissue
3) Muscular tissue
4) Nervous tissue
Types of animal tissues
1) Proper
2) Skeletal
3) Blood
a) Loose
b) Adipose
c) Fibrous
a) Bone
b) Cartilage
a) Skeletal
b) Cardiac
c) Smooth

2. 2- Skeletal Connective Tissues
A- Bone
Produces solid matrix of calcium phosphate and collagen fibers.
Each osteon (Haversian systems) has a central canal containing blood vessels and nerves.
Bone is harder than cartilage.
The functions of bone are support, movement, protection of internal organs, mineral storage (calcium, phosphate) and blood cell development.

3. B- Cartilage
Support soft tissues (nose, ear, trachea and vertebral discs).
Sliding areas for joints, facilitate bone movements.
The mature (adult) cell in cartilage is a chondrocyte خلية غضروفية
Cells are found in Lacunae (gap) within the matrix.
Fibers may be elastic or non-elastic

4. 3- Blood (Vascular Tissue)
The matrix is a liquid called plasma (55%):
90% water
10% proteins, hormones, vitamins, nutrients etc.
There are three types of blood cells (45%).
Blood cells
Functions
1- Erythrocytes (Red Blood Cells)
Carry oxygen
2- Leucocytes (White Blood Cells)
Defense against microbe
3- Platelets:
blood clotting

5. Third: Muscular tissues
Characterized by
Tissue with cells having muscle fibers specialized for contraction.
It has large numbers of myofibrils made of the contractile proteins actin and myosin

6. Types of Muscular Tissues
There are three types of muscular tissues in the vertebrate body.
1- Skeletal Muscles العضلات الهيكلية
It attaches to bones by tendons
Responsible for voluntary movements
Also called striated muscles
2- Cardiac muscles العضلات القلبية
It is found in the wall of the heart.
Cardiac muscles are branched.
Intercalated disc
3- Smooth muscles العضلات الملساء
No striations.
It is found in the walls of the digestive system, urinary bladder, arteries, and other internal organs.
The shape of the cells are spindle-shaped الشكل المغزلي

8. Fourth: Nervous tissues الأنسجة العصبية
Nervous tissue is the main component of the nervous system.
The functional unit of nervous tissue is the neuron, or nerve cell.
It consists of three parts: a cell body, a single axon and dendrites.
Dendrites transmit nerve impulses from their tips toward the rest of the neuron.
Axons transmit impulses toward another neuron, muscles or glands.