4.1 Anatomy of the Skeleton: Overview and Axial Skeleton Part 2 Flashcards
What makes up the axial skeleton?
skull, vertebral column, sternum, laryngeal skeleton, and thoracic rib cage
How many bones form the skull?
22
What are the bones of the skull?
8 cranium
14 facial bones
What is the cranium?
composed of eight bones that protect the brain
What are fontanelles?
membranous regions in newborns where the cranial bones have not fused together
What do fontanelles allow for?
allows the bones of the skull to compress during childbirth and expand to accommodate a rapidly growing infant brain
How are the large bones of the cranium named?
similar to the lobes of the brain
What is the frontal bone of the cranium?
forehead
What are the parietal bones of the cranium?
form the sides
What is the occipital bone of the cranium?
forms the base of the skull
What are the large bones of the cranium?
frontal
two parietal
occipital
What bones are located below the parietal bones?
temporal bones
What is located on the temporal bones?
opening that leads to the middle ear
What is the sphenoid bone?
completes the side of the skull and contributes to the floors and walls of the eye sockets
What is the ethmoid bone?
part of the orbital wall and a component of the nasal septum
