1. Content Standard 3
Relate major tissues and organs of the skeletal, circulatory, reproductive, muscular, respiratory, nervous, and digestive systems to their functions

2. Body Systems

3. Eligible Content
Recognize the skeletal system and describe its functions.
Include:
Bones
Cartilage
Joints
Recognize that the circulatory system carries oxygen, carbon dioxide, wastes, and nutrients throughout the body.
The Heart
The Arteries
The Veins
The Capillaries
The Blood
The Red blood cells
The White blood cells
The plasma
Recognize that the reproductive system allows for production of offspring and the continuation of life.
The testes
The ovaries
The uterus

4. Eligible Content
Recognize that the muscular system supports and enables the body to move, produce heat, and give the body shape.
Include:
Skeletal muscle tissue
Cardiac muscle tissue
Smooth muscle tissue
Recognize that he respiratory system provides the body with oxygen and removes carbon dioxide from the blood.
The lungs
The trachea
The alveoli
The diaphragm muscle
The nose

5. Eligible Content
Recognize that the nervous system gathers and interprets information and responds to that information.
Include
The brain
The spinal cord
The nerves
Recognize that the digestive system breaks down food, either chemically, or physically (mechanically), processes it for use by the body, and excretes waste products.
the mouth
The esophagus
The stomach
The small intestine
The large intestine

6. Skeletal System Bones – Protect soft organs Provide support
Store minerals
Produce blood cells
Spongy – makes bones light weight
Compact – give bones strength
Red Marrow – produces red blood cells

7. Skeletal System CARTILAGE JOINTS Lacks blood vessels of its own
Shock absorber (cushions between bones)
Flexible
JOINTS
Point where two or more bones come together
Immoveable and Movable
Ligaments – join bone to bone

8. Circulatory System Delivers oxygen and nutrients
Takes away carbon dioxide and other waste
Carries White blood cells to fight infection
Heart – pumps blood throughout the body
Atria – receive blood / Ventricles – pump blood
Arteries – carry blood away from the heart and through out the body to cells
Generally deliver Oxygen to cells
Veins – carry blood from cells to the heart
Generally take deoxygenated blood back to the heart. Takes blood from toes to heart etc…
Exceptions:
Pulmonary arteries – take deoxygenated blood from heart to lungs
Pulmonary veins – bring oxygenated blood from lung to heart

9. Circulatory System Carries oxygen, carbon dioxide, waste, and nutrients throughout the body
The capillaries – smallest blood vessels in the body
Connect arteries to veins
The blood
Carries Materials
carbon dioxide / oxygen / nutrients / waste
Fights infection
Two parts
Red Cells / White Cells / Platelets ( clot blood)
Plasma
The red blood cells
Contain hemoglobin
Carry oxygen to cells
The white blood cells
Fight infection
The plasma – liquid part of blood
Provides blood volume
The Platelets
Assist in the clotting of blood
Red Cells
plasma
White cells
Platelets

10. Reproductive System Allows for the production of offspring and the continuation of life
Testes - MALE reproductive organ- makes
Sperm – male sex cells (gamete)
Ovaries –FEMALE reproductive organ- makes
Eggs – female sex cell (gamete)
Uterus – Female structure that houses the developing baby (embryo/fetus)
Fertilized egg develops in this structure.

11. Muscular System supports and enables the body to move, produces heat, and gives the body shape.
Three types of Muscle Tissue
SKELETAL
-moves bones
Voluntary muscle
Tendons – connect muscle to bone
CARDIAC - only in the heart
Involuntary
SMOOTH
found in internal organs
ex. stomach / intestines / bladder / blood vessels

12. Stomach

13. Respiratory System PROVIDES the body with oxygen and REMOVES carbon dioxide from the blood.
Lungs- Main organ for respiration
Trachea – transports air from mouth to lungs
Epiglottis – protects it & assists in preventing choking
Alveoli- tiny air sacs – oxygen & carbon dioxide gases are exchanged
Diaphragm Muscle- muscle beneath the lungs that aid in respiration by contracting and relaxing assisting the movement of gases into & out of the lungs
Nose- part of the respiratory system that filters out inhales particles such as dust.

14. Nervous System gathers / interprets / transmits information and responds to that information
Signals travel on nerves to the spinal cord, which causes a reflex
Signals travel on nerves to the spinal cord to the brain for interpretation of the signal
The brain – Main organ for thought
The spinal cord- is a long, thin, tubular bundle of nervous tissue and support cells that extends from the brain.
The nerves – conducts information from one part of the body to another. Receive and transmit information

15. DIGESTIVE SYSTEM Breaks down food, chemically, physically, (mechanically), processes it for use by the body, and excretes waste products.
The Mouth-
Chemical digestion – salivary glands
Mechanical digestion – teeth (chewing)
The Esophagus-
Food tube – takes food from the mouth to the stomach
The Stomach –
Chemical digestion / HCL
The Small intestine-
Contains villi – major absorption of nutrients
The large intestine –
Major absorption of vitamins and
Reabsorbing liquid ( water )
Compacts waste

16. Digestive System