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Human Body Systems
Body System
nervous system
digestive system
circulatory system
respiratory system
excretory system
integumentary system
skeletal system
muscular system
endocrine system
reproductive system
Detects information from the environment.
Controls body functions.
Responds to the environment.
Helps maintain homeostasis.
Breaks down food and absorbs nutrients.
Provides your body with materials for:
growing, repairing tissues, and energy for everything you do
Carries needed substances to cells
Carries waste products away from cells
Contains cells that fight disease.
Takes in oxygen
Removes carbon dioxide and water from the body
Collects wastes produced by cells
Removes wastes from the body
Protects the body's internal living tissues and organs against:
invasion by infectious organisms
abrupt changes in temperature
Disposes of waste materials
Contains receptors for touch, pressure, pain, heat, and cold.
Stores water and fat.
Provides shape and support
Allows you to move
Protects your organs
Produces blood cells
Stores minerals and other materials until your body needs them
Enables movement of the body and internal organs
Helps the body maintain posture
Activity generates heat as a by-product to aid in maintaining
normal body temperature.
Produces chemicals(hormones) that control many of the body's
daily activities
Regulates long-term changes such as growth and development
Ensures survival of the species by producing offspring.
page 2A
Major Organs
brain, spinal cord, nerves
mouth, salivary glands, teeth, esophagus, stomach,
small intestine, large intestine, liver, gallbladder,
blood, heart, arteries, veins, capillaries
nostrils, pharynx, trachea, bronchi, bronchial tubes,
lungs, diaphragm
kidneys, ureter, urinary bladder, urethra
skin (including glands and nerves in the skin),
hair, nails
bones (femur, radius, ulna, vertebrae, ribs,
cranium, phalanges, etc.)
muscles: *voluntary (conscious control)- skeletal
*involuntary (not consciously controlled)
– cardiac and smooth
thyroid gland, pituitary gland, ovaries, testes,
adrenal glands, hypothalamus, parathyroid glands,
female: ovaries, fallopian tubes, uterus, vagina
male: testes, scrotum, penis