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muscles, bones, skin
Stack #109886
| Question | Answer |
|---|---|
| epithelium | cover for the suface of body |
| connective tissue | connects cell layers together |
| keratin | protein in dead epidermal cells that helps water proof and protect living layers beneath it |
| melanin | pigment found in inner layer |
| heat response | capillaries in dermis dilate |
| cold response | blood vessels in skin constrict |
| first degree burn | death of epidermal cells |
| second degree burn | damage to dermis |
| third degree burn | destroys epidermis and dermis |
| periostem | tough membrane that covers each bone |
| canaliculi | channels that aid in nutrient exchange and waste exchange |
| osteoblasts | cells that develop into mature bone cells |
| osteocytes | mature bone cells |
| haversian canal system | structural component of compact bone, consists of blood vessels and nerves |
| red marrow | manufactures blood cells |
| yellow marrow | contains blood vessels, nerves, and fat tissue |
| ossification | when bone begins to replace cartilage in the ninth week of human development |
| epiphyseal plates | at both ends of long bones |
| movable joints | shoulder and elbow |
| immovable joints | skull bones |
| ball and socket joints | hips and shoulders |
| pivot joints | first two vertebrate of the neck |
| hinge joints | elbows, knees, fingers, and toes |
| gliding joints | bones in wrist and ankle |
| involuntary muscles ex. | smooth, and cardiac |
| smooth muscles | found in places such as blood vessels |
| cardiac muscles | found in heart, striped |
| skeletal muscles | have more than one nucleus, |
| muscle tone | skeletal muscles kept partially contracted |
| tendons | connect muscles to bone |
| ligaments | connect bone to bone |
| myofibrils | make up muscles fibers |
| filaments | make up myofibrils |
| myosin | thicker filament |
| octin | thinner filament |
| sarcomere | filaments arranged in them, seperated by Z lines |
| motor neurons | connect nervoud system to skeletal muscle |
| neuromuscular junction | point of contact between motor neurons and a muscle cells |
| acetylcholine | travel between motor neurons and muscle cells |