Skeletal System
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40 terms
Terms | Definitions |
|---|---|
 Humerlus or femar | Long bone; upper arm |
| Short bones | carpals (wrist) |
| Flat bones | scapula Ex: Frontal (Skull) |
| Irregular bones | vertebrae or spine |
| Acetabulum | Rounded depression or socket, in the pelvis that joins the femur (thigh bone) forming the hip joint. |
| Acromion | Outward extension of the shouldre blade forming the point of the shoulder. It overlies the shoulder joint and articulates with the clavicle. |
| Articular cartilage | Covers epiphyses, acts as cushion. |
| Bone | Dense, hard conective tissue composing the skeleton. |
| Sesamoid bones | patella (knee cap) |
| Calcium | One of the mineral constiuents of bone. |
| Calcium Phosphate | is the major calcium salt in bones |
| cancellous bone | spongy, porous, bone tissue in the inner part of a bone. |
| cartilage | Flexible, rubberry connective tissue. It is found in the immature skeleton, at the epiphyseal growth plate, and on joint surfaces. |
| collagen | Dense, connective tissue protein strands foind in bone and other tissues. |
| compact bone | Hard, dense, bone tissue usually found around the outer portion of bones. |
| condyle | knuckle-like process at the end of a bone near the joint. |
| cranial bones | Skull bones: ethmoid, frontal, occipital, parietal, sphenoid, and temporal. |
| diaphysis | shaft, or mid-portion, of a long bone. |
| disk | Flat, round, plate-like structure. An intervertebral disk is a fibrocartilaginous substance between two vertebrae. |
| epiphyseal plate | cartilaginous area at the ends of long bones where lengthwise growth takes place in the immature skeleton. |
| epiphysis | Each end of a long bone; the are beyond the epiphyseal plate. |
| facial bones | Bones of the face: Lacrimal, mandibular, maxillary, nasal, vomer, and zygomatic. |
| fissure | Narrow, slit-like opening in or between bones |
| fontanelle | Soft spot (incomplete bone formation) between the skull bones of an infant. |
| foramen | Opening or passage in bones where blood vessels and nerves enter and leave. |
| Foramen magnum | is the opening of the occipital bone through which the spinal cord passes. |
| Fossa | Shallow cavity in bone |
| Haversian canals | Minute spaces filled with blood vessels; found in compact bone. |
| Malleolus | Round process on both sides of the ankle joint. The lateral malleolus is part of the fibula, and th medial malleolus is part of the tibia. |
| manubrium | Upper portion of the sternum; articualates with the medial aspect of the clavicle. |
| Mastoid process | Round projection on the temporal bone behind the ear. |
| Medullary Cavity | central, hollowed out in the shaft of a long bone. |
| Metaphysis | Flared portion of a long bone, between the diaphysis (shaft) |
| Periosteum | covers bone except at joint |
| synarthroses | no movement (sutures of skull) |
| amphiarthroses | slight movement (pelvis) |
| diathroses | full or free movement (wrist, ankle, knee) |
| kyphosis | abnormal thoaracic curvature (hunch back) |
| Lordosis | Abnormal anterior curvature (sway back) |
| Scoliosis | Abnormal lateral curvature |
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