Hassan's Story

Topics: Skull, Vertebral column, Skeletal system Pages: 2 (568 words) Published: May 1, 2013
A-Baru is using surface markings to identify the gender of a skull. What two major types of surface markings do bones have? 1-Depressions and Openings such as blood vessels and nerves 2- Processes such as ligaments and tendons

B-Why are Liu and Hassan surprised to find a metopic suture on an adult skull? In which skull bone do metopic sutures occur? Liu and Hassan were surprised to find a metopic suture on an adult skull because soon after birth the left and right side of the frontal bone are united by metopic suture and they usually disappear between the ages of six and eight. C-What delicate skeletal structures are found inside the nasal cavity that might be missing from an excavated skull? 1-Perpendicular

2-Middle nasal concha
3-Inferior nasal concha

D-How would Hassan and his team be able to tell the ages of the skeletal remains of the woman and baby?

Sutures in the skulls of infants and children are often moveable, but adults skulls are usually form immoveable joints. 4 sutures of the skull are; coronal suture, sagittal suture, lambdoid suture, squamous sutures. Fontanels are helpful in determining the degree of brain development such as anterior fontanel (usually closes 18 to 24 months after birth), posterior fontanel (generally closes about 2 months after birth), anterolateral fontanels (they close about 3 months after birth), posterolateral fontanels (they begin to close 1 to 2 months after birth, and takes 12 months to close completely) The fusion of sacral vertebrae begins between ages 16 and 18 and is completed by age 30. The female sacrum is shorter, wider, and more curved than the male sacrum. In females, the coccyx points inferiorly, in males, it points anteriorly. The vertebral column for an average adult male is around 71cm, and it is 61cm for an average adult female.

E-What features of the vertebral column would the larger skeleton in the sarcophagus show to indicate it was female?

In an average adult female...
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