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science vocab

science vocab on skeletal, muscular, integumentary, respiratory systems

skeletal system bones, cartilage, and the structures that connect bones to cartilage.
compact bone the bone tissue that does not have any visible open spaces.
spongy bone bone tissue that has many open spaces.
cartilage the flexible tissue beneath your skin.
joint the place where two or more bones connect.
osteoblasts bone is made of connective tissue and minerals that are deposited by living cells.
marrow bones contain soft tissue.(inside bone)
muscular system made up of muscels and connective tissue that attaches the muscle to the bnes.
smooth muscle one of three types of bone in its system and moves food through the digestive system.
cardiac muscle one of three types of muscle in its system and pumps blood around your heart.
skeletal muscle one of three types of muscle in its system that is attached to your bones for movement, and enables bones to move.
voluntary musle control muscle action that is under your own control.
involuntary muscle control muscle action that is not under your own control.
tendons connect your skeletal muscles to your bone.
flexor when a muscle bends part of your body.
extensor when a muscle straightens part of your body.
tendinitis when a damaged tendon becomes inflamed as your body tries to repair itself.
integumentary system your skin, nails and hair make up this system. it also keeps your body healthy.
sweat glands make sweat.
melanin in the upper layer of the skin and determines skin color.
epidermis the thinner layer of skin.
dermis the deeper, thicker layer of skin.
keratin helps make the skin tough.
collagen the dermis has fibers made of protein and that protein is this word.
blood vessel transport substances and help regulate body temperature.
nerves carry messages to and from the brain.
hair follicles in the dermis produce hairs.
muscle fibers attached to a hair follicle can contract and cause the hair to stand up.
oil glands release oil that keeps hair flexible and helps waterproof the epidermis.
nail roots under the skin at the base and sides of nails.
respiratory system a collecton of organs whose primary function is to take in oxygen and expel carbon dioxide.
nose primary passage-way into and out of the respiratory system.
pharynx the upper peotion of the throat.
eppiglottis a structure that hangs at the entrance of the larynx and prevents food from entering the larynx and the trachea while swallowing.
larynx your voice box.
trachea your windpipe.
bronchi two tubes that split the trachea.
branchioles thousands of tiny tubes that branch off of the bronchi and go to the lungs.
alveoli tiny air sacs.
diaphragm a dome-shaped muscle underneath the lungs.
lungs the central organ of the respiratory system in which oxygen from the air is exchanged with carbon dioxide from the blood.
Created by: MadelynI