問題一覧
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22 bones, rests on the superior end of the vertebral column (backbone).
Skull
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2 categories of the bones of the skull:
Cranial bones, Facial bones
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form the cranial cavity, which encloses and protects the brain.
Cranial bones
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form the face.
Facial bones
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8 Cranial bones:
Frontal bone, Two parietal bones, Two temporal bones, Occipital bone, Sphenoid bone, Ethmoid bone
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14 Facial bones
Two nasal bones, Two maxilla, Two zygomatic bones, Mandible, Two lacrimal bones, Two palatine bones, Two inferior nasal conchae, Vomer
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refers to the skull after the bones of the face have been removed.
Calvarium
8
Identify yellow
Frontal bone
9
identify green.
Frontal bone
10
Identify red.
Ethmoid bone
11
Identify red.
Ethmoid bone
12
Identify blue
Sphenoid bone
13
Identify yellow
Sphenoid bone
14
Identify green
Parietal bones
15
Identify black
Parietal bones
16
Identify black
Temporal bones
17
Identify blue
Temporal bones
18
Identify white
Occipital bone
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General Features and Functions of the Skull:
Protection, Structure, Attachment, Passage, Location, Development
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Features and Function: protects the brain, brainstem, eyes, and various nerves and vessels.
Protection
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Features and Funtions: provides structure for the muscles, blood vessels, and connective tissue of the face and scalp.
Structure
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Features and Funtions: provides an anchor for the muscles of the face and scalp.
Attachment
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Featues and Functions: allows neurovascular passage between intracranial and extracranial anatomy.
Passage
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Featues and Functions: determines the location of the eye orbits and ears.
Location
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Featues and Functions: one of the first structures to form during embryonic development.
Development
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forms the forehead, the roofs of the orbits (eye sockets), and most of the anterior part of the cranial floor.
Frontal bone
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form the greater portion of the sides and roof of the cranial cavity.
Parietal bones
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form the inferior lateral aspects of the cranium and part of the cranial floor.
Temporal bones
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Is a major articulation of the temporal bone to form the temporomandibular joint.
Mandible
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forms the posterior part and most of the base of the cranium.
Occipital bone
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lies at the middle part of the skull. The shape resembles a butterfly with outstretched wings.
Sphenoid bone
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is sponge like in appearance and is located on the midline in the anterior part of the cranial floor medial to the orbits.
Ethmoid bone
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is a major superior supporting structure of the nasal cavity.
Ethmoid bone
34
Identify white
Nasal bones
35
Identify black
Nasal bones
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Identify blue
Lacrimal bones
37
Identify yellow
Lacrimal bones
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Identify black
Zygomatic bones
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Identify blue
Zygomatic bones
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Identify yellow
Inferior nasal conchae
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Identify red
Maxilla
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Identify green
Vomer
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Identify purple
Mandible
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Identify red
Maxilla
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Identify purple
Mandible
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meet at the midline and form the bridge of the nose.
Nasal bones
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form the upper jawbone. They articulate with every bone of the face except the mandible (lower jawbone).
Maxilla
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commonly called cheekbones, form the prominences of the cheeks and part of the lateral wall and floor of each orbit.
Zygomatic bones
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thin and roughly resemble a fingernail in size and shape These bones, the smallest bones of the face.
Lacrimal bones
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form the posterior portion of the hard palate, part of the floor and lateral wall of the nasal cavity, and a small portion of the floors of the orbits.
Palatine bones
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these scroll-like bones form a part of the inferior lateral wall of the nasal cavity and project into the nasal cavity.
Inferior nasal conchae
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triangular bone on the floor of the nasal cavity. It forms the inferior portion of the nasal septum.
Vomer
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is the largest, strongest facial bone. It is the only movable skull bone (other than the auditory ossicles).
Mandible
54
Identify red
Right orbit
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Identify blue
Crista galli
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Identify yellow
Perpendicular plate
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Identify purple
Middle nasal conchae
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Identify black
Inferior nasal conchae
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Identify green
Vomer
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the inside of the nose.
Nasal cavity
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divided into right and left sides by a vertical partition, which consists of bone and cartilage.
Nasal septum
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3 components of the nasal septum:
Vomer, Septal cartilage, Perpendicular plate of the ethmoid bone
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Identify 1
Nasal septum
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Identify 2
Deviated septum
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contains the eyeball and associated structures.
Orbits
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How many bones form each orbit?
7
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3 cranial bones of the orbit
Frontal bone, Sphenoid bone, Ethmoid bone
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4 facial bones of the orbit
Palatine bones, Zygomatic bones, Lacrimal bones, Maxilla
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openings for blood vessels, nerves, or ligaments.
Foramina
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an immovable joint in most cases in an adult skull that holds most skull bones together.
Suture
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Four prominent suture
Coronal suture, Sagittal suture, Lambdoid suture, Squamous suture
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unites the frontal bone and both parietal bones.
Coronal suture
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unites the two parietal bones on the superior midline of the skull.
Sagittal suture
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unites the two parietal bones to the occipital bone. This suture is so named because of its resemblance to the Greek letter lambda.
Lambdoid suture
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unite the parietal and temporal bones on the lateral aspects of the skull.
Squamous suture
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cavities within certain cranial and facial bones near the nasal cavity.
Paranasal sinuses
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skeleton of a newly formed embryo. Commonly called “soft spots,” are present between the cranial bones.
Fontanels
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Identify 1
Anterior fontanel
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Identify 2
Posterior fontanel
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U-shaped, is a unique component of the axial skeleton because it does not articulate with any other bone. Located in the anterior neck between the mandible and larynx.
Hyoid bone
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It is where the coronal and sagittal sutures meet
Bregma
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Identify yellow
Frontal bone
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identify red
Coronal suture
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Identify purple
Bregma
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Identify orange
Parietal bone
86
Identify blue
Sagittal suture
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Identify pink
Parietal foramen
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Identify black
Lambda
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Identify brown
Lambdoid suture
90
Identify green
Occipital bone
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is at the junction of the sagittal and lambdoid sutures
Lambda
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Identify pink
Frontal squama
93
Identify yellow
Orbit
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Identify black
Zygomatic facial foramen
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Identify blue
Mental foramen
96
Identify green
Alveolar process of mandible
97
Identify red
Alveolar process of maxilla
98
Identify purple
Infraorbital foramen
99
Identify brown
Supraorbital margin