KINESIOL 2A03 Lecture Notes - Lecture 1: Appendicular Skeleton, Ear Canal, Axial Skeleton

• School: McMaster University
• Department: Kinesiology
• Course: KINESIOL 2A03
• Professor: Krista Howarth

Document Summary

Axial skeleton: contains 80 bones, bones lie on the longitudinal axis, head, neck, trunk bones, vertebrae, ribs, sternum, breast bone, skull, hyoid bone (associated with the skull) Appendicular skeleton: this part of the skeleton is the appendages/limbs, girdles are attachment points for the limbs to the axial skeleton, pelvic is hips and pectoral is shoulder bones. Bones are often named based on their function, shape, or what attaches to. There"s a ridge on your scapula (shoulder blade) and spine. A ridge is usually a flat, elongated bumpy structure. Can have a ridge to protect blood vessels moving through. We don"t just have bony pieces for no reason, they always have. Ex. of a canal we already talked about : the external auditory. It goes through the temporal bone, into the structures of the middle and inner ear. Flattened, curved out spaces in bone; like a notch, a groove, or a fossa nerves: projection a purpose, openings canal, depressions.