CH. 7 AXIAL SKELETON (part4)
Terms
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- Skull
-
Cranial
Facial Bones - Cranial
-
What are all of these part of:
frontal, parietal, temporal, occipital, ethmoid, sphneoid - Sutures
-
Coronel
Sagittal
Lamboidal
Sqamosal - Coronel
- Which suture is frontal/parietal?
- Sagittal
- Which suture is btwn the parietals?
- Lamboidal
- Which suture is Parietal/ Occipital
- Sqamosal
- Parietals/ temporal
- Fontenels
-
Anterior
Posterior
Anterolateral (sphnoidal)
Posterolateral (mastoidal) - Anterior (frontal)
- Which fontanel is btwn. the frontal and parietal
- Posterior
-
Which fontanel is btwn. parietal and occipital
closes in 2 months after birth? - Anterolateral (sphnoidal)
- Which fontenel is located btwn frontal, parietal, temporal, and sephnoid
- Posterolateral (mastoidal)
- Which fontanel is btwn. parietal, occipital, and temporal bones?
- Frontal Bones
- Frontal squama, frontal eminence, frontal sinuses, glabella, Metopic Suture
- Metopic (frontal) suture
- Space in frontal bone; dense irr. conn. tissue, fills up by age 5-6
- Parietal bone
- Superior sagittal sulcus
- Superior sagittal sulcus
- btwn right and left parietal bone
- Temporal bone
- Temporal squama, external acoustic (auditory) meatus (canal), internal auditory canal, petrous portion of temporal bone, Zygomatic Arch
- Zygomatic arch
- consists of the zygomatic process of the temporal bone and the temporal process
- Sephnoid bone
-
greater wing
lesser wings
sella tucica
pteryoid processes
sphenoidal air sinuses -
tuberculum sellae
hypophyseal pouch
dorsum sellae
posterior clinoid processes - sella turcica consist of ____.
- hypophyseal pouch
- protects pituitary gland
- Occipital bone
- foramen magnum, occipital condyles
- Ethmoid bone
-
ethmoid sinuses
perpendicular plate
cribiform plate
olfactory formina
crista galli
superior and middle nasal concha - Facial bones
- 14
- Nasal bones
- meet at the midline and form part of the bridge of the nose
- Maxillae
-
maxillary sinuses
palatine process - Patatine bones
- horizontal plate
- Zygomatic bones
- called cheeck bones
- Mandible
- lower part of jaw, is the longest, strongest facial bone
- Lacrimal bones
- thin and roughly resemble a fingernail in size and shape
- Inferior nasal concha (tubinates)
- inferior to the midline nasal conchae of the ethmoid bone
- Vomer
- triangular bone on the floor of the nasal cavity that articulates superiorly with the perpendicular plates of the ethmoid bone and inferiorly with bone of maxillae and palatine
- Hyoid Bone
- A U-shaped bone at the base of the tongue that supports the muscles of the tongue.
- Vertebral column
-
Cervical vertabrae
Atlas
Axis
Thoracic
Lumbar
Sacrum
Coccyx - Cervical vertabrae
-
Atlas
Axis
(7) in neck region - Atlas
-
The first cervical vertabra
supports head
a ring of bone with anterior and posterior arches and large lateral masses - Axis
- odontoid process (dens)
- Thoracic
-
12
larger and stronger than cervical vertebrae - tubercles
- whole facets or demifacets on vertebral body with rib heads
- vertebrocostal joits
- facet for articular part of tubercle of rib
- Lumbar
-
supports the lower back
5 - Sacrum
-
1
consists of 5 fused vertebrae - Coccyx
-
1
consists of 4 fused vertebrae - Vertebral foramen
- formed by vertebral arch of each individual vertebrae
- Vertebral (spinal) canal
- contains the spinal cord
- Intervertabral foramen
-
formed by adjacent vertebrae (superior and inferior vertebral notches)
serves as exit for spinal nerves - Transverse foramen
- in cervical Vertebrae artey, vein and nerve
- Major formamina
-
Vertebral foramen
Vertebral (spinal) canal
Intervertabral foramen
Transverse foramen - Thorax
-
Sternum
Thoracic vertebrae
Ribs
Costal Cartilages - Sternum
-
manubrium
body
xiphoid process - Ribs
-
True (vertebrosternal) ribs
False ribs
Vertebrochondral ribs
Vertebral (floating ribs - Costal cartilages
- 1-7 pairs of ribs have direct anterior attachment to the sternum by a strip of hyaline cartilage
- True (vertebrosternal) ribs
- 1 - 7 The ribs that have costal cartilage and attach directly to the sternum
- False ribs
-
5 ribs
The costal cartilage attaches INDIRECTLY to the sternum - Vertebrochondral ribs
- 8-10 pairs
- Vertebral (floating) ribs
- 11-12 pairs