Laboratory 1 Axial Skeletal System

8/3/2019 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 &ethmoidal 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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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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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

Laboratory 1 Axial Skeletal System

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