Hematoma is (localized blood collection) that formed within the fracture site in the first few hours and days

Inflammatory cells infiltrate with in the fractured bone, with recruiting of neutrophil then macrophages

granulation tissue (important in healing). New Vascular formation for nutrition delivery

fibroblast accumulation will specialize cells to form a bridge of tough connective tissue

special cells in the body that are capable of changing into bone cells are activated, and they start laying down new bone tissue; this tissue, is a soft tissue called callus

extends from the cell body (dendron - greek for tree).

These are the part at which nerve impulses are received

Most of the bodies are found in the brain and spinal cord, or in the ganglia (which lie just outside the spinal cord).

a single nerve fiber, which transmits impulses to the distal end

Axons can be very long - around 1 meter, and vary in diameter from 0.2 to 20 µm

Myelin is formed by oligodendrocytes in the CNS, and by Schwann cells in the PNS)

axons are insulated by a myelin sheath, which increases the rate at which an axon can conduct an action potential

They have a role in immune defense and become phagocytic in response to infections or tissue damage

These are supporting cells, also involved in the metabolic exchange between neurons and blood, and responsible for blood-brain brier

line the ventricles and spinal canal producing CSF. They have cilia on their luminal surface

In the peripheral nervous system, there are two types of supporting cell, the Schwann and satellite cells

usually resulted in the death of the neuron

if injury cuts an axon from its cell body

If an axon is cut from its cell body