1. Intro to Anatomy – Lesson 3
TSWBAT to identify the 11 body systems and define the functions and components of each system.

2. Organ Systems of the Body - Skeletal
Protects body organs/tissues
Provides the framework for muscles
Produces blood cells
Stores minerals (calcium)
Composed of: bones, cartilage and ligaments

3. Organ Systems of the Body – Nervous
Detects changes
Stimulates muscles and glands
Receives and interprets sensory information
Composed of: the brain, spinal cord, sense organs and nerves

4. Organ Systems of the Body - Lymphatic
Return tissue fluid to the blood
Carries certain absorbed food molecules
Defends against infection and diseases
Composed of: thymus, spleen, lymph nodes, and lymphatic vessels

5. Organ Systems of the Body - Muscular
Provides movement
Maintains posture
Produces heat
Composed of: muscles and tendons

6. Organ Systems of the Body- Integumentary
Protects tissues
Helps regulate body temperature
Provides sensory information
Composed of: the skin, sweat glands, hair, and nails

7. Organ Systems of the Body - Digestive
Receive, break down, and absorb food
Eliminates unabsorbed material
Composed of: mouth, tongue, teeth, salivary glands, pharynx, esophagus, stomach, liver, gallbladder, pancreas, small and large intestines

8. Organ Systems of the Body – Endocrine System
Not connected anatomically in the same way that parts of other organ systems are.
Controls metabolic activities of body structures
Composed of: Glands that secrete hormones - Pineal gland, Pituitary gland, Thyroid gland, Thymus gland, Adrenal gland, Pancreas, Testis (male), Ovary (female)

9. Organ Systems of the Body - Respiratory
Intake and output of air
Exchange of gases between air and blood
Composed of: the nasal cavity, sinuses, pharynx, trachea, bronchi, larynx and lungs

10. Organ Systems of the Body - Cardiovascular
Moves blood through blood vessels and transports substances throughout the body
Composed of: the heart, arteries, capillaries, and veins

11. Organ Systems of the Body- Urinary
Removes wastes from blood
Maintains water and electrolyte balance
Stores and transports urine
Organ Systems of the Body- Urinary
Composed of: kidneys, ureters, urinary bladder, and urethra

12. Organ Systems of the Body Female Reproductive
Produce and maintain egg cells
Receive sperm cells
Support development of embryo and function in birth process
Composed of: ovaries, uterine tubes, uterus, vagina, clitoris, vulva

13. Organ Systems of the Body Male Reproductive
Produce and maintain sperm cells
Transfer sperm cells into female reproductive tract
Composed of: scrotum, testes, epididymis, seminal vesicles, prostate gland, urethra, penis

14. System Cooperation Body systems must work together for
humans to function properly:
EX #1 – Integumentary system & Skeletal
System…The skin protects all organs &
bones, and also produces vitamin D. Vitamin D
is used for proper absorption of calcium.
Calcium is needed for proper bone
growth/development. Not enough Vitamin D, not
enough Calcium absorbed  weak/broken bones!

15. EX #2: Respiratory system & Circulatory
System Cooperation
EX #2: Respiratory system & Circulatory
system: Lungs take in oxygen in exchange for
carbon dioxide. Alveoli in the lungs give
oxygen to red blood cells (hemoglobin) to carry
to all parts of the body for respiration. If alveoi
are affected, not enough oxygen is taken in and
respiration slows  decrease in the amount of
energy produced

16. Organ Systems Don’t Work Alone
The respiratory system takes in oxygen and removes waste gases.
The cardiovascular system is responsible for delivering the oxygen to all parts of our bodies.

17. Organ Systems Interrelationships
Nutrients and oxygen are distributed by the blood
Metabolic wastes are eliminated by the urinary and respiratory systems
Figure 1.2

18. Create Want Ad CHOOSE A BODY SYSTEM
 WRITE EITHER A “FOR SALE” OR “WANTED TO BUY” AD FOR THAT SYSTEM.
 AD MUST INCLUDE PURPOSE/FUNCTION AND PARTS OF THE SYSTEM.
 WRITE IN AD FORMAT (25 +/- WORDS IN LENGTH)
Grading: Content = 15 pts (Purpose, Function & Parts); Creativity = 5 pts

19. Survival Need or Necessary Life Function?
Metabolism Nutrients Reproduction Oxygen Water Maintaining Boundaries Excretion
Normal Body Temperature Responsiveness Atmospheric Pressure Movement Growth Digestion