the 11 body systems // honors biology 9

skeletal

bone, cartilages, ligaments
- supports and protects organs
- stores minerals
- produces blood cells

respiratory

nasal cavity, pharynx, trachea, larynx, lungs
- exchanges oxygen and carbon dioxide between air and blood in the lungs

endocrine

glands producing hormones: pituitary, adrenal, thyroid
- secrets hormones regulating growth, reproduction, metabolism, and the use of nutrients

circulatory

heart, blood, arteries, veins, capillaries
- transports materials (oxygen, water, carbon dioxide, nutrients, and waste)
- maintains body temperature

muscular

muscles; skeletal muscles, smooth muscles, cardiac muscles
- assists in movement, body position, position balance, and blood flow

digestive

mouth, esophagus, stomach, intestines, pharynx, rectum
- breaks down food
- absorbs nutrients and eliminates waste

nervous

brain, nerves, spinal cord and other associated structures
- relays messages
- coordinates body functions
- enables learning and memory

lymphatic

(aka immune system)
tonsils, spleen, appendix
- provides immunity
- protects, collects, and cleanses blood

excretory

kidney, urinary bladder, urethra
- regulates water and electrolytes
- removes waste from blood

integumentary

skin, hair, nails
- protects tissue
- regulates temperature
- excretes water and salt
- sends information to nervous system
- is the location of receptors

reproductive

male: prostate, penis, testis
female: uterus, ovary, vagina, vulva
- male produces and passes sperm to female
- female produces eggs, receives sperm, and baby develops in womb