Human Body
Levels of Organization
Organs
Organ System
Tissue
Organism
Cells
Performs a specific function ex.White Blood Cells fights infection.
2 or more tissues working together to perform a specific function. Ex. let the body move, propogate information
Two or more tissues working together to perform a specific function. Ex. Pump Blood
Entire living things that can carry out basic life functions. (Release energy, grow etc)
Two or more tissues working together to perform a specific function. Ex. Tells the Body to move or adapt
Nervous System
Nerves
Spinal Cord
Brain
The 3 main regions receive and process information controls voluntary and involuntary movements
Nerves carry electrical signals throughout the Nervous System they all contain Neurons.
Part of the CNS all information inside or outside your body is brought there.
Endocrine System
Adrenal
Testes and Ovaries
Thyroid
Pancreas
Works with Endocrine System
Regulates Metabolism rate, growth and development
Produces Adrenaline
Produces testosterone and estrogen
Works with Nervous System
Regulates blood glucose concentration and produces insulin
Circulatory System
Capillaries
Blood
Heart
Works With: The Respiratory System
Liquid that carries needed materials needed materials to needed cells
The smallest blood vessel, exchange nutrients and wastes to and away from the heart
Pumps blood throughout the body
Veins
Arteries
Blood Vessel that carries blood back to the heart and CO2 to be recycled at the lungs.
Respiratory System
Avioli
Lungs
Bronchi
Diaphragm
Larynx
Bronchiolitis
Epiglottis
Flap of skin that directs food to the esophagus and air to lungs
The voice box has two membranes that vibrate together to create sounds
Tubes that branch of the trachea and leads in to each lung
Site of gases moving into and out of bloodstreams
A sponge like organ and is the main one of the Respiratory System, creates tremendous surface area for the Aveoli
Draws air into the Lungs
Air from the Bronchi heads into the Bronchiolitis, Alvioli are also attatched to it
Works With: Circulatory System
Trachea
Where air flows to the lungs
carry oxygen and sugar to cells so they can function
Skeletal System
Works together with the Muscular System to aid in movement
Bones
Ligaments
Cartilage
A tissue that provides structure and shape to organisms too
Connects bones to other bones
Provides structure and shape and helps protects organs
Muscular System
Skeletal Muscle
Works with the Skeletal System to aid in movement
Digestive System
Esophagus
Mouth
Liver
Stomach
Gall Bladder
Pancreas
Small Intestine
Large Intestine
Rectum
Works with the Circulatory, Muscular, and Urinary System to help eliminate waste from the body
Breaks down food into smaller pieces and the saliva containing enzymes help start chemical digestion while the tongue pushes the food down the throat
Tube that food travels down to the stomach
Filters the blood coming from the digestive tract and produces bile that helps digest fatty foods
Stores food that comes from the esophagus, uses both chemical and physical churning and empties it into the small intestine.
Stores bile produced from the liver until it is needed to help break down fatty foods in the small intestine.
Contains enzymes that head into the small intestine to further break down food
Last part of the intestine before it reaches the anus where the waste is expelled
Absorbs any water from waste coming from the small intestine and transmits it for elimination
Uses bile and enzymes to break down food into even smaller pieces and absorbs most of the nutrients
Urinary Sytem
Urethra
Urine
Kidneys
Skin
Ureters
Bladder
Works with all organ systems to get rid of waste and unneeded nutrients
Stores the urine until it is eliminated
Gets rid of water and salts from the body
Liquid waste filtered from the blood
The tube that passes urine from the bladder to the outside of the body
Filters blood of liquid waste and forms urine
Passes urine out of the kidneys and the bladder
Immune System
Cilia
White Blood Cells
Saliva
Phagocytes
Mucus
T-Cells
Works with Nervous system to help fight off infection
Antibodies
Captures foreign particles
Uses chemicals to break down bacteria
Sweeps mucus into throat to cough or swallow
Skin
Acts as a shield to protect against invaders
Enters the tissue to fight against invaders if they enter the body
Eats foreign particles and breaks them apart into lysosomes
Kills infected cells and can recognize infected human cells and cancer cells
Proteins that help slow down,damage,and clump the foreign particles
Reproductive System
pulls the bone to the body
Cardiac Muscle
Smooth Muscle
Found inside the heart when contracted the heart pumps blood
Grinds,churns,and moves food through the body
Testes
Ovaries
Works with the endocrine system and the muscular system
Produces eggs
Produces sperm