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Head Neck Thorax And Spine Flashcards

1
Q

Sternocleidomastoid Action

A

Bilaterally: Flexes head against resistance, neck flexion, extension at A-O joint, accessory muscle for respiration
Unilaterally: Ipsilateral sidebend with contralateral rotation of face

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2
Q

Sternocleidomastoid Origin

A

Sternal Head: Manubrium, Clavicular head: upper medial 1/3 of clavicle

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3
Q

Sternocleidomastoid Insertion

A

Lateral Surface of Mastoid Process and Lateral 1/2 of Superior Nuchal Line

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4
Q

Sternocleidomastoid Innervation

A

CN XI (Motor); C2-C3 (Sensory)

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5
Q

Anterior, Middle and Posterior Scalenes Action

A

Ipsilateral side bending of cervical vertebra
Elevates first and second rib during inspiration

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6
Q

Scalene Anterior Origin

A

Transverse Process C3-C6

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7
Q

Scalene Middle Origin

A

Posterior Tubercles Transverse Process C2-C7

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8
Q

Scalene Posterior Origin

A

Posterior Tubercles of Transverse Process C4-C6

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9
Q

Anterior Scalene Insertion

A

1st Rib

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10
Q

Middle Scalene Insertion

A

Superior Surface of 1st Rib

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11
Q

Posterior Scalene Insertion

A

2nd Rib

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12
Q

Anterior Scalene Innervation

A

C4-C6 Ventral Rami

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13
Q

Middle Scalene Innervation

A

C3-C8 Ventral Rami

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14
Q

Posterior Scalene Innervation

A

C7-C8 Ventral Rami

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15
Q

Levator Scapulae Action

A

Elevates Scapula
Downward Rotation of Scapula with Pec Minor

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16
Q

Levator Scapulae Origin

A

Transverse Process of Vertabrae C1-C4

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17
Q

Levator Scapulae Insertion

A

Medial Border of Scapula and Above Spine

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18
Q

Levator Scapulae Innervation

A

C3-C4 Ventral Rami; C5 Ventral Rami from dorsal scapular

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19
Q

Temporalis Action

A

Elevation of mandible to close mouth and teeth
Retract Mandible

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20
Q

Temporalis Origin

A

Temporal Fossa and deep temporal fascia

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21
Q

Temporalis Insertion

A

Apex, anterior, and posterior border of coronoid process of mandible and anterior border of ramus of mandible

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22
Q

Temporalis Innervation

A

CN V

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23
Q

Masseter Action

A

Powerful Elevator of Mandible

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24
Q

Masseter Origin

A

Inferior Border and Medial Surface of Zygomatic Arch

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25
Lateral Pterygoid (2 Heads) Action
Chief Protractor, Depresses Mandible
26
Lateral Pterygoid Origin
Upper-infratemporal surface and crest of greater wing of sphenoid. Lower Lat surface of lat Pterygoid plate
27
Lateral Pterygoid Insertion
Anterior aspect of mandibular neck, articular capsule and TMJ disc
28
Lateral Pterygoid Innervation
Mandibular Branch (V3) of CN V
29
Medial Pterygoid Action
Elevates Mandible Protraction of Mandible
30
Medial Pterygoid Origin
Medial surface of lat pterygoid plate and palatine bone and tuberosity of Maxilla
31
Medial Pterygoid Insertion
Medial Surface of Mandibular Angle
32
Medial Pterygoid Innervation
Mandibular Branch (V3) of CN V
33
External Intercostals Action
Elevates the Rib
34
External Intercostals Origin
From Lower Margins of Ribs 1-11, fibers pass down and forwards
35
External Intercostals Insertion
To Upper Margins of Rib Below
36
External Intercostals Innervation
Corresponding Intercostal Nerves (T1-T11)
37
Internal Intercostals Action
Depress the Rib, muscle of Expiration
38
Internal Intercostals Origin
Lower Margins of Ribs and costal cartilages, and floor of costal groove
39
Internal Intercostals Insertion
Upper Margins of Subadjacent Ribs and Costal Cartilages
40
Internal Intercostals Innervation
Corresponding Intercostals Nerve (T1-T11)
41
Innermost Intercostals Action
Depresses the Rib, Muscle of Expiration
42
Innermost Intercostals Origin
From Internal Aspects of Adjoining Rib
43
Innermost Intercostals Insertion
Fibers run in same direction as internal intercostal muscles but not full length of rib. Upper and Lower Borders of Rib
44
Innermost Intercostals Innervation
Corresponding Intercostal Nerve (T1-T11)
45
External Oblique Action
(Along will all other abdominal muscles) Increase Intra-abdominal pressure, hence resist downward pressure of diaphragm during straining and coughing R side bending with R IO, Trunk Flexion and L rotation with R EO and L IO
46
External Oblique Origin
External Surface of Lower 8 Ribs
47
External Oblique Insertion
External Lip of Iliac Crest, Pubic Tubercle and Línea Alba
48
External Oblique Innervation
Thoracoabdominal Nerves (T7-T11) and Subcostal Nerves
49
Internal Oblique Action
Resist Downward pressure of diaphragm, during straining and coughing R side bending with R IO, trunk flexion and L rotation with R EO and L IO
50
Internal Oblique Origin
Thoracolumbar fascia, iliac crest, lateral 1/2 of inguinal ligament
51
Internal Oblique Insertion
Up towards lower 3 ribs and costal margins, línea alba and down toward pubis via conjoint tendon
52
Internal Oblique Innervation
Lower 2-3 Thoracoabdominal nerves (T7-T11) Subcostal Nerves and L1 Ventral Ramus
53
Transverse Abdominus Action
Increase Intra-abdominal pressure, resist downward pressure of diaphragm during straining and coughing
54
Transverse Abdominus Origin
Fascia Iliaca, Iliac Crest, thoracolumbar fascia, and inner surfaces of lower 6 costal cartilages. Lateral 1/3 of inguinal ligament
55
Transverse Abdominus Insertion
Aponeurosis that contribute to rectus sheath and outbid via conjoint tendon
56
Transverse Abdominus Innervation
Thoracoabdominal Nerves (T7-T12) and Subcostal Nerve, and L1 Ventral Ramus
57
Rectus Abdominus Action
Increase Intra-abdominal pressure hence resist downward pressure of the diaphragm during straining and coughing Flex Lumbar Vertebral Column if pelvis fixed If thorax is fixed they flex lumbar vertebral column and draw pelvis up
58
Rectus Abdominus Origin
Xiphoid Process of Sternum and Costal Cartilages 5-7
59
Rectus Abominus Insertion
Pubic Crest and Symphysis
60
Rectus Abdominus Innervation
Thoracoabdominal Nerves (T7-T11) and Subcostal Nerve
61
Diaphragm Action
Primary Muscle of Inspiration During Contraction diaphragm descends and draws central tendon down; volume of thorax is increased and intrathoracic pressure decreased
62
Diaphragm Origin
Sternal from post aspect of Xiphoid process Costal- from inner surfaces of lower 6 costal cartilages and lower 4 ribs Lumbar- from bodies of upper lumbar vertebrae and fibrous arches (Med and Lat arcuate ligaments)
63
Diaphragm Insertion
Central Tendon of Diaphragm
64
Diaphragm Innervation
Phrenic Nerve (C3, 4, 5)
65
Serratus Posterior Superior Action
Elevate Ribs
66
Serratus Posterior Superior Origin
Nuchal Ligament, Spinous Process of C7-T3
67
Serratus Posterior Superior Insertion
Superior Borders of Ribs 2-4
68
Serratus Posterior Superior Innervation
Intercostal Nerves T2-T5
69
Serratus Posterior Inferior Action
Depress Ribs
70
Serratus Posterior Inferior Origin
Spinous Processes of T11-L2
71
Serratus Posterior Inferior Insertion
To Inferior Borders of Ribs 8-12 near angles
72
Serratus Posterior Inferior Innervation
Intercostal Nerves T9-T11 and Subcostal Nerve
73
Iliocostalis Lumborum Action
Extension and Lateral Flexion of Vertebral Column
74
Iliocostalis Lumborum Origin
Median Sacral Crest; T11-12, L1 Spines and Ligaments, dorsal ilium; lateral aspect
75
Iliocostalis Lumborum Insertion
Inferior Borders of Lower 6 or 7 Costal angles
76
Iliocostalis Lumborum Innervation
Thoracic and Lumbar Dorsal Rami
77
Iliocostalis Thoracis Action
Extension and Lateral Flexion of Vertebral Column
78
Iliocostalis Thoracis Origin
From Upper Borders of Lower Costal Angles
79
Iliocostalis Thoracis Insertion
To the Superior borders of the upper costal angles and the back of the C7 transverse process
80
Iliocostalis Thoracis Innervation
Thoracic Dorsal Rami
81
Iliocostalis Cervicis Action
Extension and Lateral Flexion of Vertebral Column
82
Iliocostalis Cervicis Origin
From the 3rd-6th Costal Angles
83
Iliocostalis Cervicis Insertion
To the posterior tubercles of C4-C6 transverse process
84
Iliocostalis Cervicis Innervation
Cervical Dorsal Rami
85
Longissimus Thoracis Action
Extend and Sidebend Vertebral Column
86
Longissimus Thoracis Origin
Common Distal Attachment, Sacrum, Iliac Crest, spinous process of lumbar vertebrae, and transverse process of lower thoracic vertebrae
87
Longissimus Thoracis Insertion
Tips of all Thoracic transverse Process and Lower 9 or 10 ribs between tubercles and angles
88
Longissimus Thoracis Innervation
Thoracic Dorsal Rami
89
Longissimus Cervicis Action
Extend and Sidebend Vertebral Column
90
Longissimus Cervicis Origin
From long tendons attached from T1-T4 or T5 transverse processes and lower 3 or 4 Cervical Articular Processes
91
Longissimus Cervicis Insertion
C2-C6 Transverse Process Posterior Tubercles
92
Longissimus Cervicis Innervation
Thoracic and Cervical Dorsal Rami
93
Longissimus Capitis Action
Extend Head and Rotate Face to Same Side
94
Longissimus Capitis Origin
T1-T4 OR T5 transverse processes and lower 3 or 4 cervical articular processes
95
Longissimus Capitis Insertion
Posterior Margin of Mastoid Process
96
Longissimus Capitis Innervation
Thoracic and Cervical Dorsal Rami
97
Spinalis Thoracis Action
Extend Vertebral Column
98
Spinalis Thoracis Origin
T11-L2 Spines
99
Spinalis Thoracis Insertion
T4-T8 Spines
100
Spinalis Thoracis Innervation
Thoracic and Cervical Dorsal Rami
101
Spinalis Cervicis Action
Inconstant Extend the Vertebral Column
102
Spinalis Cervicis Origin
Lower Ligamentum Nuchae, C7 Spine
103
Spinalis Cervicis Insertion
Spine of C2
104
Spinalis Cervicis Innervation
Cervical Dorsal Rami
105
Spinalis Capitis Action
Extend Vertebral Column
106
Spinalis Capitis Origin
Blended with Semispinalis Capitis
107
Spinalis Capitis Innervation
Cervical Dorsal Rami
108
Masseter Insertion
Angle and Lateral aspect of ramus of mandible
109
Masseter Innervation
Mandibular (V3) Branch of CN V

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