Laboratory 1 Axial Skeletal System
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Transcript of Laboratory 1 Axial Skeletal System
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Anatomy 201 Lab
Laboratory 1:The Axial Skeletal System
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Pg 132
Microscopic Anatomy of Osteon
(Haversian System)
Osteon
A. Lamellae (rings)
B. Lacunae (lakes)
E. Central(Haversian)
canal
C. Osteocyte (cell in lacuna)
D. Canaliculi
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Microscopic Anatomy of Osteon
Pictures from Model
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Pg 150 & 151
Skull:Sutures
A3. Lambdoid
suture
A4. Squamoussuture
A2. Coronalsuture
A1. Sagittal suture
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Pg 149
Skull: Cranial Cavity
B1. Anterior cranialfossa
B2. Middle cranialfossa
B3. Posterior cranialfossa
Superior view of the cranial fossae
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Pg 152
A. Frontal bone A1. Frontal sinus
A2. Supraorbital margin
A3. Supraorbital foramen
A4. Zygomatic process ofthe frontal bone
Cranium: Frontal Bone
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CraniumB. Parietal bone(Pg 150)
B1. Temporal lines
C. Occipital bone(Pg 152)
C1. External occipital protuberance(bump on back of the head)
C2. Foramen magnum
C1. Internal occipital protuberance
B2. Grooves for middlemeningeal vessels (on inner
surface of parietal bone)
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Cranium: Occipital Bone
C3. Occipital condyle
C4. Condylar canal
C5. Hypoglossal canal
C6. Groove (sulcus) for
superior sagittal sinus(vertical groove on the innerposterior surface)
C7. Groove (sulcus) for
transverse sinus
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Cranium: Temporal Bone
D. Temporal bone
(Pg 153)
D2. Zygomatic process
D4. Styloid process
D5. Mastoid process
D1. Squamous portion
D12. External auditory meatus
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D3. Mandibular fossa
D9. Groove (sulcus) forthe sigmoid sinus
D6. Stylomastoid foramen
D8. Carotid canal
D10. Petrous portion
D11. Internal
auditory meatus
D7. Jugular fossa
Cranium: Temporal Bone
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Cranium: Ethmoid Bone
E. Ethmoid bone(Pg 159)
E2. Cribiform plate ofthe ethmoid bone
E4. Lateral masses ðmoidal sinuses
E3.Perpendicularplate of theethmoid bone
E5. Superior &middle nasal
conchae
E1. Crista galli
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Cranium: Sphenoid Bone
F2. Lesser wings
F1. Greater wings
F. Sphenoid bone (Pg 155)
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Cranium: Sphenoid Bone
F5b. Lateralplate (lamina)
F5a. Medial plate(lamina)
F4. Anterior & posterior clinoid processes
F5c. Pterygoid fossa
F3. Sella turcica
F5. Pterygoid processes
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Cranium: Sphenoid Bone
F7. Superior orbitalfissure
F6. Optic foramen
F8. Foramen rotundum
F10. Foramen spinosum
F9. Foramenovale
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G. Sutural (Wormian) bones
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Other Skull StructuresB. Orbit
D. Nasal cavity
E. Nasal septum
C. Inferior orbital fissure
A. Zygomatic arch
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Other Skull Structures
F. Choanae(posteriornares or internal nostrils)
H. Foramen lacerum
I. Jugular foramen
G. Hard palate
J. Teeth
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The Face: MaxillaA1. Maxillary sinus
A2. Infraorbital foramen
A3. Zygomaticprocess of the
maxilla
A4. Frontal process
A5. Alveolar process
A6. Palatine process
A. Maxilla(Pg 160)
A7. Incisive fossa (foramen)
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The Face: The Mandible
Pg 160
D3. Condylar processD4. Mandibular notch
D5. Mandibularforamen
D6. Angle
D1. Ramus
D7. BodyD8. Mental foramen
D9. Mental protuberance
D10. Alveolarprocess
D2. Coronoid process
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The FaceE. Lacrimal bone (Pg 161)
F. Zygomatic bone G. Inferior nasal conchae
H. Vomer
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The Face: Hyoid bone
I1. Body
I2. Greater horns
I3. Lesser horns
Pg 167
C
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Vertebral ColumnCervicalvertebrae
7 vertebrae, C1C7
Thoracicvertebrae12 vertebrae,
T1
T12
Lumbarvertebrae
5 vertebrae, L1 L5
Sacrum5 fused
vertebrae
Coccyx4 fused vertebrae
Anterior view Right lateral view
C1
T1
2
3
4
5
6
7
8
9
10
11
12
L1
2
3
4
5
2
3
4
5
6
7
V b l C l
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A5. Intervertebralforamen
Vertebral Column (Typical Vertebra)
A1. Body
A6. Vertebral foramen
A7. Spine (spinous process)
A8. Transverse
process
A9. Superior articular process
A10. Inferior articular process
A3. Superior notch
Pg 169
A4. Inferior notch
A2. Lamina
A2. Pedicle
V b l C lV b l C l
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Vertebral ColumnVertebral Column
B2. C1: Atlas
Note: No body / no spine
B3. C2: Axis
B. Cervical vertebra
B1. Transverse foramen
B3a. Dens (odontoid process)
Pg 170
Dens of axis
C1 (atlas)C2 (axis)C3
V b l C l
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Vertebral ColumnC. Thoracic vertebrae (Pg 172)
Note: Costalfacets
V b l C l
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Vertebral ColumnC. Lumbar vertebrae (Pg 172)
V t b l C l
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Vertebral ColumnE1. Sacral canal
E2. Sacral hiatusE3. Anterior sacral foramina
E3. Posterior sacral foramina
E4. Sacral promontory
E5. Auricular surface
F. CoccyxPg 173
E. Sacrum
B f th Th
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Bones of the Thorax (Ribs)
A1b. NeckA1c. Tubercle
A1a. Head
A1e. Shaft
A1. Typical rib
Pg 176A1f. Sternal end
A1d. Angle
B f th Th
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Bones of the Thorax (Ribs)
Pg 175
A2. true ribs (1-7)
A3. false ribs (8-10)
A4. floating ribs (11-12)
B.Sternum
B1. Manubrium
B2. Jugular (sternal) notch
B3. Clavicular notch
B4. Body
B7. Xiphoidprocess
B5. Sternalangle
B6. Costal notches
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Study Room
Study Room (CP 259) is across the hall
The practical exams and quizzes arebased off of the models
You NEED to spend time reviewing withthe models
The worksheets are to help you becomefamiliar with the terms
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END of LAB 1
Next Week:
Quiz One
Worksheet One Due