KN 251 Lecture Notes - Lecture 7: Optic Nerve, Xiphos, Metacarpal Bones
Document Summary
Divided based on axial and appendicular skeletons. Composed of bones, cartilages, joints, and ligaments. Four limbs and their limbs (everything else not mentioned above) Formed by two main sets of bones. Encloses/store the brain in the cranial cavity. C(cid:396)a(cid:374)ial (cid:271)ase: a(cid:374)te(cid:396)io(cid:396), middle, a(cid:374)d poste(cid:396)io(cid:396) (cid:272)(cid:396)a(cid:374)ial fossae. (cid:894)(cid:862)fossa(cid:863)= Hollo(cid:449)/ hallo(cid:449) dep(cid:396)essio(cid:374) ; i(cid:374)gula(cid:396). (cid:862)fosse(cid:863)= hollo(cid:449)/ hallo(cid:449) dep(cid:396)essio(cid:374)s ; They make up the framework of the face. Cavities are for special sense organs for sight, taste, and smell. Sites of attachment for teeth and muscle for facial expression. It is located on the anterior(front) portion of the cranium. It is most of anterior cranial fossa (surface space) The frontal bone contains air filled frontal sinus. Frontal eminence: it is a rounded elevation located on the bone. Sinuses: they are small cavities that have a membrane around them and most are filled with air. Their purpose is to help make the skull lighter, so it makes it easier to keep our head up!
