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Definition
| makes up the central bones found along the central axis of the body. Includes the skull, vertebral column and the thoracic cage. |
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| includes the bones of the limbs, the pelvic and pectoral girdles including the scapular, clavicle, and pelvic girdles. |
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| dermal areas where the skull bones have not completely grown and fused yet. They are of benefit in 2 ways. A) the babyas head is flexible allowing greater ease passing through the birth canal and B) the lymphatic drainage system may not be well developed in the babies head at the time of birth; so if there is swelling of the brain or tissues surrounding it, the skull will allow this to occur. Fontanels close around age 4-5. |
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Definition
| cavities inside several of the bones surrounding the nasal cavities. These bones are the frontal, sphenoid, ethmoid, and maxilla. The sinuses will drain mucous into the nasal cavities. Functionally the sinuses lighten the weight of the skull and are lined with mucous which aid in moistening the nasal cavities. |
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Definition
| A fetus exhibits a primar curve so that it appears to bend forward at the waist. As the infant learns to walk the secondary curve develops allowing us to balance our torso over our legs. The secondary curves are completed around age 10 years. The spine the appears S shaped when viewed laterally. The thoracic and sacral remain as primary curves while the cervical and lumbar turn the opposite forming the secondary curve. |
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Definition
| Can be caused by osteoporosis (breaks down the articulating cartilage between vertebrae) with compression fractures. |
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Definition
| Vertebrae articulate with each other at their articular facets (with the superior to the inferior of the superior vertebrae). They also articulate with each other at their bodies through an intervertebral disc of fibrocartilage. |
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Term
| Number of cervical, thoracic, lumbar, sacral and coccygeal vertebrae. |
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| Describe why atlas doesn't exhibit a vertebral body while axis has an enlarged vetebral body |
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Definition
| During fetal development the body of atlas fuses with the body of axis to become the dens of axis. As a result of this fusion there is no intervetebral disc. The dens allows rotation of the head while the body of atlas enables nodding. The occipital condyles balance on the large superior articular facet of atlas. |
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Term
| Number of true, false, and floating ribs. |
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Definition
| 7 pairs, 5 pairs, 2 pairs. |
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Term
| Difference between male and female pelvis |
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Definition
| Females pelvis have an enlarged pelvic outlet, due in part to greater seperation of the ischial spines. Less curvature of the sacrum and coccyx, which in males are into the pelvic outlet. A wider more circular pelvic outlet. A relatively broad, low pelvis. A broader pubic angle, with the inferior angle between the pubic bones greater than 100 degrees. |
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