Week 2- Head & Neck Flashcards
Function of bones of the skull
-Protect & House brain
- openings for sensory organs
8 Cranial Bones
-Parietal (2)
-Frontal
-Ethmoid
-Occipital
-Sphenoid
-Temporal (2)
14 Facial Bones
-Maxilla (2)
-Palatine (2)
-Nasal (2)
-Zygomatic (2)
-Lacrimal (2)
-Inferior Nasal Conchae (2)
-Mandible
-Vomer
4 Agonists of TMJ
-Temporalis
-Masseter
-Lateral Pterygoid
-Medial Pterygoid
Joint Motions
-Depression/Elevation
-Lateral Deviation (left/right)
-Protrusion (protraction)
-Retrusion (retraction)
Neck Movements
-flexion/extention/hyperextention
-Lateral Bending (left/right)
-Rotation (left/right)
What vertebrae helps to rotate the head
-C2
-Axis
What is the first vertebrae
-C1
-Atlas
Biggest Spinous Process
C7
Atlanto-Occupital Joint
-where occipital bone meets the atlas (C1)
Function of Atlanto-Occipital Joint
-supports the weight of the head
Muscles of the Anterior Neck & Trunk
-Sternocleidomastoid (SCM)
-Scalene muscles (3)
-Prevertebral Group
Muscles of the Posterior Neck & Trunk
-Erector Spinae Muscles
-Splenius Capitis
-Splenius Cervicis
-Suboccipital Group
Sternocleidomastoid -OIA
O: Sternum & Clavicle
I: Mastoid Process
A: - Flex/Hyperextend neck bilaterally
- Bend/Rotate neck to opposite side Unilaterally
Scalene Muscles- OIA
O: Transverse process of C2-C7
I: ribs 1 & 2
A: -Flex neck bilaterally
- laterally bends neck unilaterally
Muscles of the Prevertebral Group
-Deep neck flexors (DNFs)
1)Longus Colli
2)Longus Capitis
3)Rectus Capitis Anterior
4)Rectus Capitis Lateralis
Prevertebral Group- OIA
O: C2-T2
I: occipital bone & transverse process of C-vertebrae
A: -Flex Head
-HELP to bend head laterally
Suboccipital Muscles- OIA
O: C1 & C2
I: Occipital Bone
A: extend head
Splenius Capitis
O: Spinous Process C7-T3
I: Occipital Bone & Mastois Process
A:- extend head/neck bilaterally
- rotate & laterally bend face to same side (unilaterally)
Splenius Cervicis- OIA
O: Spinous Process T3-6
I: Transverse process C1-C3
A: -Extend neck bilaterally
-rotate & laterally bend to same side (unilaterally)
Upper fibres of trapezius- OIA
O: occipital Bone & cervical Vertibrae
I: Lateral 3rd of clavicle & acromion
A: -Scapular elevation & upwards
-stabilize/extend neck
