BIOL 1412 Lecture Notes - Lecture 10: Shoulder Girdle, Axial Skeleton, Appendicular Skeleton

• School: University of Manitoba
• Department: Biological Sciences
• Course: BIOL 1412
• Professor: Ibrahima Diallo

Document Summary

2 divisions: axial skeleton (80 bones, skull, hyoid bone, vertebral column, thoracic cage. Sternum + ribs: appendicular skeleton (126 bones) limbs + bones that attach them to axial skeleton (girdles, pectoral girdle, pelvic girdle, upper limb (arm, forearm, + hand, lower limb (thigh, leg, + foot) Connections between bones = articulations: e. g. the humerus articulates with the scapula. Names of common bone markings: see table 6. 1: axial skeleton. 3 main bone groupings: cranium 8 bones (next to brain, facial bones 14 bones, auditory ossicles 6 (3 bones on each side in the middle ears) Summary of bones in each group: cranium. 1 frontal (forehead) i: 2 parietal, 2 temporal. 1: 1 sphenoid, 1 ethmoid forms superior + middle nasal chonchae, 1 occipital, facial bones. 2 nasal i: 2 maxillae, 2 zygomatic, 2 lacrimal, 2 palatine. 2 palatine + 2 maxillae = hard palate: 2 inferior nasal chonchae, 1 vomer viii. 1 mandible: auditory ossicles incus i, malleus, stapes.