Human Body
Levels of organization
Organism: Living beings that can carry out all basic life processes.
Organ System: Groups of 2 or more organs that work together to perform a specific function for the organism
Organ: Made up of tissues which work together for a specific activity
Tissue: Made up of similar cells which work together to perform a specific activity
Cells: Are the basic unit of structure and function in living things.
Respiratory
Lungs: is needed for the alveoli and allows you to breathe(filters air)
Bronchioles: Separate parts of the lungs
Trachea: Place where all air flows to our lungs
Larynx: Voice box(allows you to make a sound)
Epiglottis
Pharynx: The area that contents the nasal cavity to the oral cavity( mouth)
Nasal Cavity: First line of defense
Alveoli: Tiny air sacs of the lungs.
Bronchi: Division point for the esophagus
Circulatory
Blood vessels:Pipes that our blood flows through
Arteries: Carries the needed product to parts that need it
Veins: Carry waste(Carbon Dioxide) to the lungs to recycle
Heart: (Non-stop)Pumps blood around the body
Red blood cells: Drop off oxygen to all the cells in your body.
Skeletal
Joint: Allows our bones to move
Tendons: Ties bones together
Ligaments: Attaches 2 bones together
Cartilage: A connective tissue which can be found in many forms.
Muscular
Smooth Muscle: (Involuntary) Breaks and moves food.
Cardiac Muscle: (Involuntary) When it contracts the heart pumps blood through the body.
Skeletal Muscle: (Voluntary) Pulls the bone to move the body.
Nervous
Brain: Tells the other parts of the body what to do.
Nerves: Cables which connect the brain to other parts of your body.
Neuron: Carries information through your nervous system
Endocrine
Hormones: Sends signals into the bloodstream and tissue
Endocrine Glands: produce and release a chemical product called hormones.
Digestive
Esophagus: A tube which food travels down from the throat to the stomach
Liver: Helps digest fatty foods and filters blood.
Mouth: Breaks down food and begins chemical digestion.
Stomach: Stores food and breaks it down then empties into the small intestine.
Gall bladder: stores gall produced by the liver until it is needed to break down food in the
Pancreas: helps further break down food.
Small intestine: helps break down food and absorbs most nutrients
Large intestine: collects all waste and moves the waste for elimination.
Rectum: Last section of the large intestine before the waste is expelled.
Urinary
Urine: Liquid waste filtered from blood.
Ureters: (long tube) carries urine out of the kidneys into the bladder.
Bladder: Stores urine until eliminated.
Kidney: filters blood and turns liquid waste to urine.
Urethra: A tube that passes urine from the bladder to outside the body.
Immune
skin: The dea outer layer of your skin which acts like a shield to invaders
T cells: recognize then kill infected cells in the body
White blood cells: Blood cells which fight off germs or anything harmful to the body.
B-cells: produce antibodies which are equipped to find that specific piece on a new particle then attach.
Reproductive
Ovaries: Produce eggs
Testes: Produce sperm
Diaphragm: