axial skeleton

Question 1

frontal bone

Answer 1

forms forehead, roofs of eye sockets (orbits), and most of the front part of the cranial floor

Question 2

parietal bone

Answer 2

form the sides + roof of the cranial activity; separated on top of skull by the sagittal suture

Question 3

temporal bones

Answer 3

forms lower sides of the cranium + part of the cranial floor; external auditory meatus (ear canal) is located within these bones

Question 4

occipital bones

Answer 4

forms posterior part + most of the cranial base; foramen magnum passes through this bone; occipital condyles are on either side of the foramen magnum that connect w/ the first vertebrae

Question 5

sphenoid bone

Answer 5

butterfly bone: “keystone” of the skull; sella turcica - depression in sphenoid that hold pituitary gland

Question 6

ethmoid bone

Answer 6

found directly above sphenoid; crista galli - holds the membranes that surround the brain (dura mater)