ANATOMY 2300.03 Lecture Notes - Lecture 4: Appendicular Skeleton, Axial Skeleton, Ossicles

• School: Ohio State University
• Department: Anatomy
• Course: ANATOMY 2300.03
• Professor: Jennifer Burgoon

Document Summary

Functions: support, protection, movement, mineral storage: vitamin d, calcium, phosphates, blood cell formation (hematopoiesis, triglyceride storage: fats. 2 principal divisions of skeleton: axial: bones lie around longitudinal axis of human body, along midline, skull, cranium. Face: hyoid (in neck, auditory ossicles, vertebral column, thorax. Sternum ribs: appendicular: bones within upper and lower limbs, also bones connecting limbs to axial skeleton, girdle: connects appendicular skeleton bones to axial skeleton. Shoulder connects upper limb to axial: pelvic bones connect lower limb to torso/axial skeleton. Long bone: longer than it is wide: humerus. Short bone: cuboidal in shape, width approx same as length: carpal & tarsal bones. Flat bone: flat appearance: sternum, ribs, skull bones. Irregular bone: different shapes: all vertebra (all slightly different) Sesamoid: embedded in tendon -->more protection: patella (knee cap) largest one in body. Textures of bones: compact: more dense, outer surface of bone. Spongy (diploe): porous, innermost surface of bones: arteries, air-filled.