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skeletal system!
| Question | Answer |
|---|---|
| Skeletal system | serve several important functions |
| Periosteum | each bone is surrounded by a tough membrane |
| Haversian Canals | contain blood vessels and nerves |
| Bone Marrow | bones are cavities that contain a soft tissue |
| Cartilage | bones are formed from the cells of a type of connective tissue |
| Ossification | the process of bone formation |
| Joint | places where two bones come together, permit the bones to move without damaging each other |
| Ligament | one of the layers of the joint capsule may thicken to torn strips of tough connective tissue |
| Muscular system | groups of cells that are specialized for contraction |
| Myosin | the thick filament are made up off protein |
| Actin | the thin filaments are composed of a protein |
| Tendon | skeletal muscles are joined to bones by tough connective tissues |
| Integumentary system | skin, the single largest organ in the body |
| Epidermis | the outermost layer |
| Digestive System | allows your body to get the nutrients and energy it needs from the food you eat. |
| Digestion | the process of breaking down food by mechanical and enzymatic action in the stomach and intestines into substances that can be used by the body. |
| Pharynx | the membrane, lined cavity behind the nose and mouth, connecting them to the esophagus. |
| Epiglottis | a flap of cartilage at the root of the tongue, which is depressed during swallowing to cover the opening of the windpipe. |
| Esophagus | the part of the alimentary canal that connects the throat to the stomach; the gullet. In humans and other vertebrates it is a muscular tube lined with mucous membrane. |
| Peristalsis | the involuntary constriction and relaxation of the muscles of the intestine or another canal, creating wavelike movements that push the contents of the canal forward. |
| Sphincter | a ring of muscle surrounding and serving to guard or close an opening or tube, such as the anus or the openings of the stomach. |
| Stomach | the internal organ in which the first part of digestion occurs |
| Chyme | the pulpy acidic fluid that passes from the stomach to the small intestine, consisting of gastric juices and partly digested food. |
| Duodenum | the first part of the small intestine immediately beyond the stomach, leading to the jejunum. |
| Small intestine | the part of the intestine that runs between the stomach and the large intestine; the duodenum, jejunum, and ileum collectively. |
| Pancreas | a large gland behind the stomach that secretes digestive enzymes |
| Liver | a large lobed glandular organ in the abdomen of vertebrates, involved in many metabolic processes. |
| Gall bladder | the small sac |
| Large intestine | the cecum, colon, and rectum collectively. |
| Colon | digestive organ, also known as the large intestine, that removes water from the undigested materials that pass through it |