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Primary functions of the skeletal system |
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Definition
- Give shape and support to the body
- protect various internal structures and organs
- serve as attachments for muscles and act as levers to produce movement
- help produce both white and red blood cells (marrow)
- store most of the body's calcium, phosphorus, magnesium, and sodium
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| the hindmost bone of the skull; forms the back of the skull above the nape. |
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| skull bones (2); forms the sides and the crown of the cranium |
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| skull bones (2); form the sides of the head in the ear region |
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| skull bone; light spongy bone between the eye sockets that forms part of the nasal cavaties |
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| skull bone; joins all the bones of the cranium together. |
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| face (2); forms the bridge of the nose |
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| face (2) ; small thin bones that comprise the eye sockets |
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| face (2); form the prominence of the cheeks (cheekbones) |
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| face (2); bones of the upper jaw. |
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| lower jawbone; the largest and strongest bone of the face. |
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| face; flat thin bone that forms part of the nasal septum |
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| form the hard palate of the mouth |
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| face; bones which make up the sides of the nasal cavity |
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- Hyoid: adams apple
- cervical vertebrae: the seven bones of the top part of the vertebral columns.
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It serves as a protective framework for the heart, lungs, and other internal organs. |
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| Bones of the arm and hand |
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Definition
humerus: uppermost and largest; elbow to shoulder ulna: inner and larger of forearm; attached to wrist and on little finger side radius: smaller bone in forearm; thumb side carpus metacarpus: the palm; five long bones called metacarpal bones phalanges: finger bones; 14 total (3 per finger and 2 in thumb. |
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| Muscle tissue can be stimulated by: |
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massage electrical current light rays heat rays moist heat nerve impulses chemicals |
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scalp; aka occipito frontalis- broad muscle that covers the top of the skull; consists of two parts, occipitalis and frontalis. |
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| scalp; back of the epicranius; muscle that draws the scalp backward. |
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scalp; anterior (front) portion of the epicranius; muscle of the scalp that raises the eyebrows, draws the scalp forward and causes wrinkles across the forehead. |
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| scalp; tendon that connects the occipitalis and the frontalis. |
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the muscular system, covers, shapes and supports tissue. Over 640 muscles. 40 % of the body's weight. fibrous tissue that has the ability to stretch/contract.
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| 3 types of muscular tissue |
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striated: skeletal/voluntary muscles that are attached to bones. Nonstriated: involuntary, visceral, function automatically. cardiac muscle: involuntary muscle that makes up the heart. not found in any other part of the body.
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Three parts to each muscle: Origin: immovable-attached to skeleton & usually part of a skeletal muscle. insertion: part of muscle at the more movable attachment to skeleton. belly: middle part of muscle. *pressure in massage is usually directed from insertion to origin. |
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