Integumentary System

Integumentary System has a lot of function such as:

1. ptotects from invasion of disease

2.keep the body from drying out

3.acts as a storage for fatty tissue

4.produces vit. D

5.provides sensory input

6.regulates bdy temperature

Muscular Dieases

Myalgia-pain in muscles
Fibromyalgia-afects women under 40
ataxia-irregular action
Paralysis-partial loss of the ability to move
Spasm-prologned contraction of the muscle
sprain-breaks ligament
strain-breaks tendon
Shin Splints-inflammantory condition of lower leg
Hernia-tear in the muscle wall
Tendinitis-tendons are inflammed

Muscular System

Muscles-is the general term for all contractile tissue.

It has three types

Skeletal muscle-voluntary, muscle fiber is striped w/c is called striated
Smooth muscle-involuntary, doesn't have striped apperance
Cardiac muscle- stirated apperance, involuntary and found in the heart

Skeletal System Diseases

Skeletal System also worns out and does result in many diseases such as:

osteoporosis-which is the condition in decreasing bone density
arthritis-it is the inflammatory process of the joints
calcification- a condition in which the cartilage hardens
scoliosis-sideways bend
lordosis-swayback
kyphosis-humpback

Tissue

Tissue

• is a cellular organizational level intermediate between cells and a complete organism
• a tissue is an ensemble of cells

kinds of tissue

• Ephitelium - Tissues composed of layers of cells that cover organ surfaces such as surface of the skin and inner lining of digestive tract: the tissues that serve for protection, secretion, and absorption.
• Connective tissue - As the name suggests, connective tissue holds everything together. Connective tissue is characterized by the separation of the cells by non-living material, which is called extracellular matrix. Bone and blood are connective tissues.
• Muscle tissue - Muscle cells are the contractile tissue of the body. Its function is to produce force and cause motion, either locomotion or movement within internal organs. Muscle tissue is separated into three distinct categories: visceral or smooth muscle, which is found in the inner linings of organs; skeletal muscle, which is found attached to bone in order for mobility to take place; and cardiac muscle which is found in the heart.
• Nervous tissue - Cells forming the brain, spinal cord and peripheral nervous system.

Skeletal System

Skeletal Sytem

• it serves as framework for the body
• the skeleton provides mechanical protection for many of the body's internal organs
• bone tissues store several minerals
• the red bone marrow inside some larger bones blood cells are produced

Kinds of bones

• Long bones- have greater length than width and consist of a shaft and a variable number of endings
  
• Short bones- are roughly cube-shaped and have approximately equal length and width
• Flat bones- have a thin shape/structure and provide considerable mechanical protection and extensive surfaces for muscle attachments
• Irregular bones- their shapes are due to the functions they fulfill within the body e.g. providing major mechanical support for the body yet also protecting the spinal cord

Kinds of bone tissue

• Compact- tissue forms the outer shell of bones. It consists of a very hard (virtually solid) mass of bony tissue arranged in concentric layers (Haversian systems)
• Spongy- tissue is located beneath the compact bone and consists of a meshwork of bony bars (trabeculae) with many interconnecting spaces containing bone marrow.

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