| A | B |
|---|
| Homeostasis | Body keeps internal environment stable |
| Muscular System | helps you move |
| Respiratory System | absorbs oxygen and releases carbon dioxide |
| Nervous System | sends and receives electrical signals |
| Skeletal System | protects and supports your body parts |
| Integumentary System | protects tissues that lie beneath them |
| Digestive System | breaks down food into nutrients |
| Cardiovascular System | pumps blood through your vessels |
| Tissue | group of similar cells working together to perform a certain function |
| Muscular Tissue | Contraction |
| Connective Tissue | Holds organs together. Example: Fat |
| Nervous Tissue | sends electrical signals |
| Epithelial Tissue | covers and protects underlying tissues |
| Ligaments | Connects bones to bones |
| Tendon | Connects bones to muscles |
| Skeletal System Function | Support; Allows movement; Protection; Stores minerals and fat; Produces blood cells |
| Marrow | within bones; makes blood cells |
| Joints | Two bones come together |
| Ball-and-Socket Joint | Allows arm to move in all directions; swing in a circles |
| Hinge Joint | Joint that allows movement in forward and backward direction; Elbow |
| Gliding Joint | Joint that allows bones to glide over each other; wrist |
| Three types of muscles | Skeletal; Smooth; Cardiac |
| Three types of joints | Ball-and-Socket; Hinge; Gliding |
| Skeletal Muscle | Both voluntary and involuntary; connected to bones |
| Smooth Muscle | Involuntary; found in digestive tract and blood vessels |
| Cardiac Muscle | Involuntary; found in the heart |
| Flexor | muscle that bends part of the body |
| Extensor | Muscle that straightens part of the body |
| Aerobic exercises | Exercise that strengthens the heart and builds endurance |
| Resistance exercises | Exercise that builds muscle |
| Sprain | ligaments or tendons are overstretched or torn |
| Strain | muscles are overstretched or torn |
| Fracture | break in a bone |
| Dislocation | bone is forced out of a joint |
| Osteoporosis | bone becomes weak or breaks easily |
| Arthritis | joint swell or stiffen |
| Tendonitis | Inflammation of the tendon from overuse |
| Functions of the Integumentary System | Protection; Regulates body temp.; Gets rid of waste; Keeps you in touch with outside world |
| Melanin | gives skin and hair its color |
| Epidermis | outermost layer of skin |
| Dermis | lower layer of skin; gives skin its strength |
| Sunburn | redness of skin due to overexposure to UV light |
| Skin cancer | damage to genetic material in skin cells |
| Ance | too much oil is produced in glands and follicles clog |
| Functions of Hair | Blocks UV light; regulates body temp.; keeps foreign particles out |
