A&P Chapter 7
Facial Bones
14 bones of which only the mandible and vomer are unpaired.
Axial Skeleton
80 bones segregated into three regions.
Coronal Suture
Articulation between the parietal bones and the frontal bones anteriorly.
Squamous Suture
Articulation where the parietal and temporal bones meet.
Lambdoid Suture
Articulation where the parietal bones meet the occipital bones posteriorly.
Sagittal Suture
Articulation where the right and left parietal bones meet superiorly.
Saccrum
Bone inferior to the lumbar vertebrae that articulates with the hip bones.
Occipital Bone
Bone that forms most of the skull's posterior wall and base.
Frontal Bone
Bone that forms the anterior portion of the cranium; articulates poeteriorly with the parietal bones via the coronal suture.
Cranium
Bone that protect the brain and is the site of attachment for head and neck muscles.
Ethmoid Bone
Bone whose major markings include the cribriform plate, crista galli, perpendicular plate, nasal conchae, and the ethmoid sinuses.
Occipital Bone
Bone whose major markings include the posterior cranial fossa, foramen magnum, occipital condyles, and the hypglossal canal.
Sphenoid Bone
Bone whose major markings include the sella turcica, hypophyseal fossa, and the pterygoid processes.
Frontal Bone
Bone whose major markings include the supraorbital margins, the anterior cranial fossa, and the frontal sinuses.
Temporal Bone
Bone whose major markings include the zygomatic, styloid, and mastoid processes, and the mandibular and middle cranial fossae.
Sphenoid Bone
Bone whose major openings include the foramina rotundum, ovale, and spinosum; the optic canals; and the superior orbital fissure.
Temporal Bone
Bone whose major openings include the stylomastoid and jugular foramina, the external and internal auditory meatuses, and the carotid canal.
Facial Keystone
Bones that articulate with all other facial bones except the mandible.
Lacrimal Bones
Bones that contribute to the medial walls of the orbit and contain a deep groove called the lacrimal fossa that houses the lacrimal sac.
Temporal Bones
Bones that form the inferolateral aspects of the skull and parts of the cranial floor.
Facial Bones
Bones that supply the framework of the face, the sense organs, and the teeth; provide the openings for the passage of air and food; anchor the facial muscles of expression.
Maxillary Bones
Bones whose major markings include palatine, frontal, and zygomatic processes, the alveolar margins, inferior orbital fissure, and the maxillary sinuses.
Mandible
Bones whose major markings include the coronoid process, mandibular condyle, the alveolar margin, and the mandibular and mental foramina.
Orbits
Bony cavities in which the eyes are firmly encased and cushioned by fatty tissue.
Sphenoid Bone
Butterfly-shaped bone that spans the width of the middle cranial fossa.
Zygomatic Bones
Irregulary shaped bones (cheekbones) that form the prominences of the cheeks and the inferolateral margins of the orbits.
2 Parietal, 2 Temporal, Frontal, Occipital, Sphenoid, and Ethmoid
List the 8 cranial bones.
Maxillary Bones
Medially fused bones that make up the upper jaw and the central portion of the facial skeleton.
Paranasal Sinuses
Mucosa-lined, air-filled sacs found in five skull bones: the frontal, ethmoid, sphenoid, and paired maxillary bones.
Squamous, Tympanic, Mastoid, and Petrous
Name the four regions of the temporal bones.
Coronal, Sagittal, Lambdoid, and Squamous
Name the four sutures that mark the articulations of the parietal bones.
Frontal, Sphenoid, Zygomatic, Maxilla, Palatine, Lacrimal, and Ethmoid
Name the seven bones that form orbits.
Skull, Vertebral Column, and Bony Thorax
Name the three regions of the axial skeleton.
Inferior Nasal Conchae
Paired, curved bones in the nasal cavity that form part of the lateral walls of the nasal cavity.
Vomer
Plow-shaped bone that forms part of the nasal septum.
Floor
Section of the nasal cavity formed by palatine process of the maxillae and palatine bones.
Roof
Section of the nasal cavity formed by the cribriform plate of the ethmoid.
Lateral Walls
Section of the nasal cavity formed by the superior and middle conchae of the ethmoid, the perpendicular plate of the palatine, and the inferior nasal conchae.
Thoracic Vertebrae
The 12 bones of the torso.
Lumbar Vertebrae
The 5 bones of the lower back.
Cervical Vertebrae
The 7 bones of the neck.
Skull
The body's most complex bony structure.
Nasal Cavity ; Orbits
The ethmoid bone forms most of the bony area between the _______ ________ and the _________.
Neck ; Larynx
The hyoid bone is the attachment point for _____ muscles that raise and lower the _______ during swallowing and speech.
Mandible
The largest, strongest bone of the face (jawbone).
Ethmoid Bone
The most deep of the skull bones; lies between the sphenoid and nasal bones.
Hyaline
The nasal cavity is constructed of bone and _________ cartilage.
Hyoid Bone
The only bone of the body that does not articulate directly with another bone.
Cranium and Facial
The skull is formed by the ________ and _______ bones.
All other cranial bones
The sphenoid bone forms the central wedge that articulates with:
26
The vertebral column is formed from ___ irregular bones connected in such a way that a flexible curved structure results.
Nasal Bones
Thin, medially fused bones that form the bridge of the nose.
Wormian Bones
Tiny, irregulary shaped bones that appear within sutures.
Palatine Bones
Two bone plates that form portions of the hard palate, the posterolateral walls of the nasal cavity, and a small part of the orbits.
Lightens the skull and enhances the resonance of the voice
What is the function of paranasal sinuses?