Chapter 15 - Musculoskeletal System - Cranial Bones Flashcards
What is the Occipital Bone?
Where is the Occipital Bone located?
Forms the back and base of the skull and joins the parietal and temporal bones, forming a suture.
Back and base of skull
What is the Sphenoid Bone?
Where is the Sphenoid Bone located?
the bat-shaped that extends behind the eyes and forms part of the base of the skull.
Base of skull and behind eyes (bat-shaped bone)
What is the Frontal Bone?
Where is the Frontal Bone located?
forms the forehead and the roof of the bony sockets that contain the eyes
Forehead; part of eye sockets
What is the Temporal Bone?
Where is the Temporal Bone located?
the two bones that form the lower sides and base of the cranium
Lower sides and back of skull
What is the Ethmoid Bone?
Where is the Ethmoid Bone located?
the thin, delicate bone that supports the nasal cavity and forms part of the sockets of the eyes.
Supports nasal cavity and eye sockets
What does the Sphenoid Bone serves as to the other bone?
What are the other bones that it joins?
it serves as an anchor to hold those skull bones together
It joins with the frontal, occipital and ethmoid bones
What is the Ethmoid Bone composed of?
primarily of spongy, cancellous bone, which contains numerous small holes.
What is sutures?
When cranial bones join each other at joints
What is fontanelles?
“little fountains”
Soft spots
What is the mental foramen?
the opening in the mandible that allows blood vessels and nerves to enter and leave
What is the coronal suture?
the connection across the skull between the two parietal bones and the frontal bone
