FORS 3331 Lecture Notes - Lecture 22: Melatonin Receptor 1A, Cuneiform Bones, Sesamoid Bone

• School: Baylor University
• Department: Forensic Science
• Course: FORS 3331
• Professor: Joseph V.Ferraro

Document Summary

Baker | fors 3331 | spring 2017 | lecture 22 | page 1. I(cid:374) this le(cid:272)ture (cid:449)e"ll ta(cid:272)kle the (cid:271)o(cid:374)es of the foot (cid:894)e(cid:454)(cid:272)ludi(cid:374)g the toes [phalanges]) That is, (cid:449)e"ll (cid:272)o(cid:448)er the a(cid:374)kle (cid:271)o(cid:374)es (cid:894)tarsals) and the (cid:862)sole(cid:863) (cid:271)o(cid:374)es (cid:894)metatarsals) The foot is comprised of 26 bones: 7 carpals, 5 metatarsals, 14 phalanges. A refresher on directional terminology for the hand: anterior = distal, posterior = proximal, superior = dorsal. Ours is no longer a grasping foot, as it is now adapted for bipedalism. In this transition, mobility, flexibility, and grasping capabilities were lost: rather, our foot is adapted for propulsion and shock absorption, lateral arches absorb shock and add propulsive spring. The ankle is comprised of seven (7) tarsal bones: these are equivalent to the eight (8) carpal bones of the hand. Baker | fors 3331 | spring 2017 | lecture 22 | page 2.