Organ Systems

1
Organ Systems

• Organ specialized tissues that work to perform
  a more complex function
• System group of organs that work to perform a
  more complex function
• 11 major organ systems of the body

2
Integumentary

• Crucial to survival
• Primary function protection
• Skin I s largest organ in system (20lbs)
• Accessory organs nails, hair
• Includes glands

3
Skeletal

• 206 bones
• Includes cartilage and ligaments
• Function support and protection
• Bones store essential minerals
• Formation of blood cells in bone marrow

4
muscular

• Skeletal muscles voluntary, contraction
• Smooth visceral involuntary
• Cardiac involuntary heart
• Function produce movement, maintain body posture
• Generates heat

5
Nervous

• Brain, spinal cord, nerves
• Function communication, integration, and control
  of body functions

6
Endocrine

• Composed of specialized glands that secrete
  chemicals (hormones)
• Function communication (slow but long lasting)
• Organs include pituitary gland, pineal gland,
  hypothalmus, thyroid, parathyroid, thymus,
  adrenal, pancreas and ovaries/testes

7
Circulatory

• Heart and vessels
• Closed system of arteries, veins and capillaries.
• Function- transportation (oxygen, carbon dioxide,
  nutrients and hormones)

8
Lymphatic

• Lymph nodes and vessels
• Lymph tissue
• Organs tonsils, thymus, spleen
• Function movement of fluids and molecules,
  immune system

9
Respiratory

• Organs nose, pharynx, larynx, trachea, bronchi,
  lungs
• Function permit movement of air

10
Digestive

• Function proper digestion and absorption of
  nutrients
• Organs mouth pharynx- esophagus- stomach-
  small intestine large intestine, rectum- anal
  canal
• Accessory organs teeth, salivary glands,
  tongue, liver, gall bladder, pancreas, appendix

11
Urinary

• Waste product is urine
• Kidney ureter- bladder urethra
• Filter

12
Reproductive

• Survival of species, produce hormones
• Male Testis - produce, transfer and introduce
  sperm to female
• Female ovaries produce eggs

13
Organ replacement

• Loss of vital organs life threatening
• Loss of non-vital organs can live without
• Options for loss of organs
• Artificial organs
• prosthesis
• Organ transplantation
• Kidney, pancreas, heart, lungs, Small intestines
• Free-flap surgery
• tissues from body remodeled and grafted to new
  part of body
• Stem cell treatment
• Growing new tissues or organs

14
Organ donation

• http//www.organdonor.gov/