The Human Skeleton Book Report

Decent Essays
This semester has been by far the most challenging one I had so far. Although I faced many challenges, the learning experience made it enjoyable. We have seen so far about 12 chapters and by the end of the semester, we would have cover 16 chapters. Although all chapters were very educational, chapters seven and eight were the most interesting to me. The human skeleton has about 206 major bones; it is divided into two parts, the axial skeleton which forms the longitudinal or central core and the appendicular skeleton, which forms the limbs and the bones that connect them to the body. Chapter seven educated us about the axial skeleton. According to our textbook, the axial skeleton has 80 bones. Our book divided these 80 bones into, the skull, which is subdivided into 18 cranial bones and 14 facial bones; bones associated with the skull, which are 6 auditory ossicles and the hyoid bone; the vertebral column subdivided into 24 vertebrae, the sacrum and the coccyx and the thoracic cage, which are 24…show more content…
The skull has several bones that have air-filled chambers called cavities (207). These sinuses are located in four different bones and these bones constitute the paranasal sinuses. The paranasal sinuses consist of: the frontal sinus, spenoidal sinus, ethmoid air cells and maxillary sinus (224). Another interesting bone that is part of the skull, but more specifically the cranium, is the spenoid bone. Because this bone articulates with all the other cranial bones, it is also known as “keystone of the cranial floor.” On the spenoid bone we find the sella turcica, and within the sella turcica, it’s found the hypophyseal fossa, which has the pituitary gland (217). The pituitary gland produces hormones like the growth hormone. Other cranial bones are: the frontal bone, parietal bones, temporal bones, occipital bone and the ethmoid
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