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31 Cards in this Set
- Front
- Back
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Muscles of mastication
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Temporalis
Masseter |
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Temporalis
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O: Temporal fossa
I: Coranoid process A: Elevate mandible, Retracts mandible |
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Masseter
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O: Infero-medial border of zygomatic arch
I: Angle of mandible, lateral ramus, coronoid process. A: Elevates and protudes mandible, the deep fibers retact. |
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Back muscles
(Superficial Intrinsic layer) |
Splenius Capitis
Splenius Cervicis |
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Splenius capitus
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O: inferior 1/2 of L.N., SP of C7 to T3
I: Lateral 1/3 or superior nuchal line A: extend the head and neck, laterally flex, ipsilaterally rotate |
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Splenius cervicis
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O: SPs of T3 to SPs of T6
I: Transverse spinous processes of C1-C4 A: extend the head and neck, laterally flex, ipsilaterally rotate |
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Back muscles
(intermediate intrinsic layer) |
spinalis
longissimus iliocostalis (Lateral to medial - I Love Spaghetti) |
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spinalis
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O: SPs of T11-L2, SP of C7 and ligamentum nuchea
I: SPs of C2-C6, SPs of T1-T8 A: Extend the spine, lateral flexion of spine |
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longissimus
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O: Common tendon, TVPs of T1-T5
I: Mastoid process, TVPs of C1-C7, TVPs and ribs of T4-T12 O: Extend the spine, lateral flexion of spine (the capitus fibers also rotate the head and neck) |
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iliocostalis
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O: Common tendon, all ribs
I: All ribs, TVPs of C5,6,7 & L1,2,3 A: Extend the spine, lateral flexion of spine |
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Back muscles
(Deep intrinsic muscles) Which are the transversospinalis group? (capitalized) |
MULTIFIDUS, ROTATORES, SEMISPINALIS
interspinous, intertransversarii |
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multifidus
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O: sacrum, all TVPs
I: SPs of all except C1 (spaning 2-4 vertebrae) A: Extends spine, contralateral rotation of spine |
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Suboccipital muscles
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Rectus capitus posterior major
Rectus capitus posterior minor Obliques capitus superior Obliques capitus inferior |
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Rectus capitus posterior major
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O: SP of C2
I: Inferior nuchal line A: Extension of head, Lateral flexion, Ipsilateral Rotation |
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Rectus capitus posterior minor
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O: Tubercle of the posterior arch of C1
I: Inferior nuchal line A: Extension of head, Lateral flexion, Ipsilateral rotation |
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Obliques capitus superior
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O: TVP of C1
I: In between the superior and inferior nuchal lines A: Extend the head, Lateral flexion, Postural |
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Obliques capitus inferior
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O: SP of C2
I: TVPs of C1 A: Extension, Ipsilateral rotation, Postural |
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Secondary muscles of respiration
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Serratus posterior superior
Serratus posterior inferior Scalenus anterior Scalenus medius Scalenus posterior Longus Coli |
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Serratus posterior superior
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O: inferior part of LN, SPs of C7-T3
I: ribs 2-5 superior borders A: elevates ribs, increases the diameter of the thorax |
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Serratus posterior inferior
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O: SPs of T11-L2
I: Ribs 9-12 near the angles A: Depresses ribs, Prevents ribs from being pulled too superiorly by the diaphram |
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Scalenus anterior
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O: TVPs of C3-C6
I: 1st rib at the scalene tubercle A: Elevates rib, cervical flexion, contralateral rotation, lateral flexion |
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Scalenus medius
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O: TVPs of C2-C7
I: 1st rib superior border, (just lateral to the scalene tubercle) A: elevates ribs, lateral flexion |
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Scalenus posterior
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O: TVPs of C5-C7
I: 2nd rib on the outer border A: elevates 2nd rib, lateral flexion |
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Longus Colli
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O: TVPs of C3 – 5, Vertebral bodies of C5 – T3
I: Anterior arch (tubercle) of C1, Vertebral bodies of C2-3, TVP’s of C3-6 A: Flexion of cervical spine |
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Other muscles of thorax/neck
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Platysma
Sternocleidomastoid Levator Scapula Rectus capitus anterior Rectus capitus lateralis Longus capitus |
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Platysma
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O: Fascia covering the superior parts of pectoralis major and deltoid
I: Inferior margins of mandible, skin of lower part of face and corners of mouth A: Assists to depress mandible |
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Sternocleidomastoid
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O: Manubrium, medial 1/3 of clavical
I: Mastoid process, lateral 1/2 of SNL A: Flex head and neck, laterally flex, contralaterally rotate |
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Levator scapula
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O: Superior angle of scapula
I: TVPs of C1-C4 A: Extends cervical spine, elevate scapula, downward rotation of scapula, laterally flexes (In our notes it doesn't do any rotation of the spine, but remember we DO stretch it with some) |
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Rectus capitus anterior
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...
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Rectus capitus lateralis
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...
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Longus capitus
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O: • TVP’s C3 – C6
I: • occipital bone (Just anterior to foramen magnum A: • Bilaterally: flexion of head • Unilaterally: lateral flexion |
