Bones & joints of the skull Flashcards
(29 cards)
What is the axial skeleton?
Bones of the vertical central axis- head, chest, neck, and back
What are the major structures in the axial skeleton?
Skull, vertebral column, thoracic cage
What is an articulation?
Point where two bones meet (joint)
What is a head?
Prominent rounded surface of a bone
What is a facet?
Flat surface of a bone
What is a condyle?
A rounded surface of a bone
How many bones compose the skull?
22
What is the orbit?
eye socket
Which bone does the spinal cord exit the cranium through?
Occipital bone
What is the foramen magnum?
Opening where the spinal cord exits the cranium
What is the structure of the skull that articulates with the atlas (C1) vertebra?
Occipital condyles
What is the name for the lateral bones of the skull?
Temporal bones
What are the openings in the temporal bone that form the ear canal and inner cavities?
External and internal acoustic meatus
What are the auditory ossicles?
The three tiny floating bones of the inner ear
What two bones form the zygomatic arch?
Temporal and zygomatic bones
What is the surface where the mandible articulates with the temporal bone?
Mandibular fossa
What bones make up the skull cap?
Frontal, parietal, temporal, occipital
What is the sphenoid bone?
Bone in the center of the skull that houses the pituitary gland
Which bones form the nasal septum?
Ethmoid bone (superior), vomer bone (inferior)
What is the name of the joint between the two parietal bones?
Sagittal suture
What is the name of the joint between the frontal and parietal bones?
Coronal suture
What is the name of the joint between the occipital and parietal bones?
Lambdoid suture
What is the name of the joint between the parietal and temporal bones?
Squamous suture
What bones create the orbit?
Frontal, Zygomatic, Maxillary, Ethmoid, Sphenoid, Lacrimal, Palatine
