BIO210Y5 Lecture Notes - Lecture 3: Axial Skeleton, Hyoid Bone, Ossicles
BIO210Y
Lecture 3B – Axial Skeleton
Articulations
Contacts with other bones
Landmarks (bone markings; marks)
Areas of muscle and ligament attachment
Foramina
Openings for nerves and blood vessels
The axial skeleton
The axial skeleton forms the longitudinal axis of the body. The
components of the axial skeleton are:
Skull – 8 cranial bones and 14 facial bones
• Assoiated oes – 6 auditory ossicles and hyoid bone
• Verteral olu – 24 vertebrae, sacrum, coccyx
• Thorai age – sternum and 24 ribs
The skull
Protects: brain, entrances to respiratory system and digestive
system
The skull is made up of 22 bones:
• 8 raial oes
Form the braincase or cranium
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