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Body Systems

Function What something does
Structure How it's made
Skeletal System bones, ligaments, tendons ; helps with structure and support
Circulatory System heqart, blood, blood vessels ; made to carry nutrients and waste
Nervous Systen brain, nerves ; control center
Digestive System mouth to anus ; made to get nutrients from food
Respiratory System lings bronchi ; Gas exchange
Immune System white blood cells, lymph nodes ; they protect against foreign invaders.
Muscular System muscles, tendons ; movement
Reproductive System allows species to reproduce + continue
Excretory System skin, bladder ; cleans blood
Endocrine System glands + hormones ; keeps everything in balance
Integument System hair, skin, nails, teeth ; protection
Nerve Cells are called Neurons
Sensory Neurons bring in info from the environment
Inter neuron is in the brain or the spinal cord and connects sensory with motor neurons
Motor Neurons carry info from brain or spinal cord back to the body for a reaction
Cerebrum think, emotions, learning, make decisions.
Cerebellum located on the back of the brain, underneath the cerebrum, coordinate body movements
Brian Stem controls all auto body functions like blinking, breathing, digesting food etc.
Mechanical Digestion involves chewing and churning food ; occurs in mouth + stomach
Chemical Digestion happens when enzymes break down food to get nutrients out-occurs in mouth stomach + small int.
Organs mouth (teeth, tongue, salivary glands), esophagus, stomach, liver, gallbladder, pancreas, small intestine, large intestine (colon)
Pathway for food mouth > esophagus > stomach > small intestine > large intestine > anus
Bone a living tissue made from bone cells (ostocytes) surrounded by materials
Functions -Support and movement of body -Protects internal organs -Maintain calcium balance
Types of blood RBC's (Red blood cells) WBC's (White blood cells) Platelets : help blood not to clot
How many bones are you born with? 300
How many bones do you have as adults? 206
Calcium The mineral that keeps bones hard
Tendons Attach muscles to bones
Ligaments Connect bones to bones
Types of mussels 1. Skeletal - attach to our bones so that we can move> voluntary 2. Cardiac - only in heart > involuntary 3. Smooth - found in our internal organs > involuntary
Joint where two bones meet and muscles often attach
Created by: jbruce