ANAT 101 Lecture Notes - Lecture 3: Maxillary Sinus, Meatus, Coccyx

• School: Queen's University
• Department: Anatomy and Cell Biology
• Course: ANAT 101
• Professor: Richard Oko

Document Summary

The skeleton: can be divided into: axial skeleton, bones of the skull, vertebral column, thoracic (rib) cage, function: Provide functional support (heart, lungs, and brain are protected) Find the organs responsible for our senses. Provides a site of attachment for muscles: appendicular skeleton, upper limbs and pectoral girdle, lower limbs and pelvic girdle. Made up of 22 bones joined by fibrous sutures (with one exception) Neurocranium: sphenoid bone (1): unpaired bone; looks like a butterfly, temporal bone (2): houses organs responsible for hearing and for balance, occipital bone (1), ethmoid bone (1): The moveable bone in our jaw: the temporomandibular joint is the only moveable joint in our jaw, condylar process (mandible) and mandibular fossa (temporal bone) Coronoid process: not part of the moveable joint; Condylar process: more posterior and where the moveable joint forms. External acoustic meatus: the boney part of our external ear; follow it inward and you will find your ear drum.