Anatomy and Cell Biology 3319 Lecture 18: Skeletal System
3 Jan 2018
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Introduction to the skeletal system and surface landmarks of the. Axial skeleton: body axis: skull, vertebral column and the thoracic cage (attached to the vertebral column) Appendicular skeleton: upper and lower limbs which are attached to the axial skeleton. Cranial bones (8) (neurocranium) tend to be flat of armor, mainly protection houses the brain: parietal (2, temporal (2, frontal, ethmoid, occipital, sphenoid. Facial bones (14) (viscerocranium) tend to define sensory organs (eyes, nose, ear, mouth) form the face: maxillae (2, zygomatic (2, nasal (2, lacrimal (2, palatine, vomer, mandible. Temporal bone- has the opening of the ear. Sphenoid bone (most is interior), ethmoid bone (deep bone) has the cribiform plate. Bones expand and then fuse together make fusion lines. Sagittal suture: right in half (left/right) on the parietal bones: coronal suture: between frontal and parietal since running as coronal plane, lamdoid suture: also joins up with the sagittal suture to form a lambda shape.
