Circulatory systemFunctions• Carries blood and needed substances (oxygen

and nutrients) to cells and waste products away to the cells and all your body.

• Carries cells that fight disease

Main structures:• The Heart Pump blood• The Blood Vessels: (veins, arteries, capillaries)

Bring blood around • Blood Carry oxygen, nutrients and waste

CRASH COURSE REVIEW

– Functions• Collect and Return tissue fluid to the

bloodstream.• Surveillance & defense• Bring the lipids from the digestive

system to the cells that need it– Components• Lymph is the fluid• Vessels – lymphatics• Structures & organs: Tonsils, Spleen,

thymus• CRASH COURSER REVIEW

Lymphatic System

Respiratory system

Functions

1. Moves oxygen from the outside environment into the body.2. Removes carbon dioxide and water from the body

Main Structure: Lungs

Also bronchi, bronchioles, alveoli, nasal cavity, pharynx, larynx, epiglottis, trachea,

ONCE UPON A LIFE REVIEW

Nervous system• Main Function: Control for the rest of

the systems and body functions– Receives information from inside and

outside the body– Directs the way that the body will respond

• Divided in 2:• Central Nervous system; Peripheral

nervous system

• Main structures– brain, spinal cord, nerve cells NEURONS,

sense organs CRASH COURSE REVIEW

Reproductive system• Function• allows more humans to be

born to continue the species

• Main structures– egg, sperm, ovaries, testes – CRASH COURSE REVIEW

Endocrine system

• Functions• produces hormones that control the

levels of other substances in the body • Keep the homeostasis of your body

• Structures– glands, hormones CRASH COURSE ENDOCRINE

Immune system

• Main function: fights germs entering the body

• Main parts: lymph, white blood cells, antibodies

• CRASH COURSE REVIEW

Integumentary system

• Functions Protects the other body systems from injury, infection– Helps the body maintain homeostasis– synthesis of vitamin D Required for bone

formation– Excretion of salts, water and wastes– sensory perception

–Main organ: SKIN

Excretory system• Function• This system collects the waste

produced by the cells and removes the waste from the body.

• Main organ: Kidneys

Others are urinary bladder, urethra, ureter, liver

CRASH COURSE REVIEW

Digestive systemFunctionBreaks down food small enough to get into your cells.

Main Structures stomach, esophagus, mouth, salivary glands, large and small intestine, rectum, villi, pancreas, liver, gall bladder

Chemical digestion.Mechanical digestion.CRASH COURSE REVIEW

Skeletal system

• Functions• Provide the body structure and

support, protects organs, produces blood cells, stores minerals, movement

• Main structures: – bones, joints, ligaments – CRASH COURSE REVIEW

Muscular system

• The main function

provide movement for the body

• skeletal: Pull bones to cause movement • smooth: Organ muscle, and vascular walls • cardiac: Heart contractions

• Main structures: 3 types of muscle And tendonsCRASH COURSE REVIEW