obliquus capitus inferior - origin - insertion - action

- origin: SP of Axis - insertion: TP of Atlas - action: ipsilateral of the head via neck

Longus Coli - origin - insertion - action

- origin: vertebral bodies (inferior to insertion - insertion: TPs of cervical vertebrae - action: flexion of the cervical spine

Scalenes? - origin - insertion - action

- origin: TPs of cervical vertebrae - insertion: anterior and middle scalene on Rib 1, Posterior scalene on Rib 2 - action: elevation of ribs during inspiration and flexion of the cervical spine

Rectus Capitis Anterior - origin - insertion - action

- origin: TP of Atlas (C1) - insertion: Occipital bone midline - action: stabilizes head, weak flexion of the head

Semispialis - origin? - Insertion?

- origin: Tps of the cervical and thoracic - Insertion: SPs 4-6 Vertebral levels above origin

rectus capitus posterior minor - origin - insertion - action

- origin: posterior tubercule of Atlas (C1) - insertion: occipital bone - action: extension of the head

Levatores costarum - origin? - Insertion? - actions?

- origin: TP from C7-T11 - Insertion: Upper boarder of the ribs - actions: Elevates ribs, Ipsilateral lateral flexion of the vertebral column

Rhomboid minor and major - origin? - insertion? - main functions?

- Origin: spinal processes of the C7-T5 - insertion: Medial boarder of the scapula (minor is attached superior to Major) - main function: movement of the scapula

muscles of the back and neck Flashcards by Megan Colbourne

what is the function of the trapezius when the scapula is fixed?

Bilateral cervical extension

Unilateral ipsilateral lateral flexion and contralateral rotation of the cervical spine

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What are the muscles found in the transverospinal Muscles

semispinalis
multifudus
rotatores (longus and brevis)

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what is the function of the latissimus dorsi when the scapula is fixed?

bilateral: extension of lumbar spine
unilateral: ipsilateral lateral flexion of the lumbar spine

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obliquus capitus inferior

origin
insertion
action

origin: SP of Axis
insertion: TP of Atlas
action: ipsilateral of the head via neck

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Rotatores

origin?
Insertion?

origin: Thoracic Region TPs

- Insertion: SPs of vertebrae above origin (1 vertebrae above origin= brevis, 2-3 vertebrae above origin= Longus)

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Longus Coli

origin
insertion
action

origin: vertebral bodies (inferior to insertion
insertion: TPs of cervical vertebrae
action: flexion of the cervical spine

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Scalenes?

origin
insertion
action

origin: TPs of cervical vertebrae
insertion: anterior and middle scalene on Rib 1, Posterior scalene on Rib 2
action: elevation of ribs during inspiration and flexion of the cervical spine

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intrinsic muscles are generally attached where?

these are muscles that generally have attachments on the ribs or vertebral column

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serratus posterior inferior

origin?
insertion?
main functions?

Origin: Thiracolumbar Fascia, SPs of T11-L2
Insertion: ribs 9-12
main function: depression of lower ribs

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Rectus Capitis Anterior

origin
insertion
action

origin: TP of Atlas (C1)
insertion: Occipital bone midline
action: stabilizes head, weak flexion of the head

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Semispialis

origin?
Insertion?

origin: Tps of the cervical and thoracic

- Insertion: SPs 4-6 Vertebral levels above origin

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what is the innervation of the anterior deep muscles of the neck?

anterior rami of C1-C3

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what is the innervation of scalenes?

anterior Rami C3-C8

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What muscle group does the splenius belong to?

Neck or Back?

Neck (superficial group)

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what is the main action of transverospinal Muscles?

contralateral rotation of the spine

- semispinalis also allows extension of the head (Capitus)

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Sternocleidomastoid
Origin?
Insertion?
innervation?
Main functions?

origin: Sternum and clavicle
Insertion: Mastoid Process
Innervation: Spinal Acessory Nerve
functions: Bilateral allows for extension of the head
Unilateral allows for ipsilateral lateral flexion

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rectus capitus posterior minor

origin
insertion
action

origin: posterior tubercule of Atlas (C1)
insertion: occipital bone
action: extension of the head

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Levatores costarum

origin?
Insertion?
actions?

origin: TP from C7-T11
Insertion: Upper boarder of the ribs
actions: Elevates ribs, Ipsilateral lateral flexion of the vertebral column

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Levator scapule

origin?
insertion?
main functions?

-Origin:Transverse Processes of C1-C4
-Insertion: Superiomedial boarder of the scapula
-Primary Function:Movement of the scapula
Secondary function: unilateral ipsilateral, lateral flexion of the cervical spine
bilateral extension of the neck

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Rhomboid minor and major

origin?
insertion?
main functions?

Origin: spinal processes of the C7-T5
insertion: Medial boarder of the scapula (minor is attached superior to Major)
main function: movement of the scapula

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where is the innervation of the spenius muscles?

Posterior Rami of the cervical spine

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Spleius Capitus

origin?
Insertion?
actions?

-origin:Ligamentum of Nuchae and SPs of C7-T3
-Insertion: Matoid process of the temporal bone
-actions: Bilateral extension of the head.
Unilateral: lateral flexion and ipsilateral rotation of the head

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What are the intrinsic muscles of the back innervated by?

by branches of the posterior rami of spinal nerves

obliquus capitus superior

origin
insertion
action

origin: TP of Atlas (C1)
insertion: occipital bone
action: extension and ipsilateral lateral flexion of the head

rectus capitus posterior major - origin - insertion - action

- origin: SP of axis (C2) - insertion: Occipital bone - action: extension and ipsilateral rotation of the head

What are the posterior suboccipital muscles of the neck?

- rectus capitus posterior major - rectus capitus posterior minor - obliquus capitus superior - obliquus capitus inferior

what extrinsic back muscles are found int the 3rd superficial layer?

- serratus posterior superior | - serratus posterior inferior

what back muscles are included in the 1st superficial layer?

- Trapezius | - latissimus Dorsi

What are extrinsic muscles? what is another name given to them?

extrinsic muscles are muscles located in one region but that control movements in a different region. they are know as superficial muscles

what are intrinsic muscleS?

these are muscles located in one area and allow for movement in that particular area

deep muscles of the back is another name given to which muscles?

the intrinsic muscles

how is the Longus Colli divided?

- superior oblique - vertical - inferior oblique

what types of muscles of the back are responsible for the movement of the upper limbs?

extrinsic muscles

serratus posterior superior - origin? - insertion? - main functions?

-origin: Ligamentum of Nuchae and SPs of C7-T3 -Insertion: first 4 ribs main function: elevation of the upper ribs

Multifudus - origin? - Insertion?

- origin: Thoracolumbar TPs | - Insertion:SPs 2-4 Vertebral levels above origin

what muscles are found in the splenius?

-splenius Capitus | Splenius Cevicis

what are the minor deep muscles of the back?

- Interspinalis - intertransversari - levatores Costarum

how are the intrinsic muscles of the back arranged?

they are arranged in 3 layer -splenius (superficial) Erector Spinae (intermediate) transversospinal & minor deep muscles (deep)

how are extrinsic muscles of the back innervated? is there an exception?

superficial muscles of the back are innervated by the branches of the anterior rami of the spinal nerves however, trapezius is innervated by the spinal accessory nerves

what is the main actions of the Erector Spinae?

-bilateral extension of the vertebral colulmn | Unilateral lateral flexion of the vertebral column (strictly accomplished by the Iliocostalis)

What are the muscles found in the erector Spinae? | What is the trick to remember them?

- Iliocostalis - longissimus - Spinalis -I like standing muscles

what is the primary function of intrinsic muscles?

they support and allow movement of the vertebral column

Splenius Cervicis - origin? - Insertion? - actions?

-origin: SPs of T3-4 -Insertion: TPs of C1-3 -actions: Bilateral:Extension of the spine Unilateral: Lateral Flexion and ipsilateral rotation of the neck

What back and neck muscles are involved in respiration?

- serratus posterior superior - serratus posterior inferior - Levatores Costarum - scalenes

Intertransversari - origin? - Insertion? - actions?

- origin: TP prominent in the cervical and Lumbar regions - Insertion: TP of the vertebrae above - actions: Ipsilateral lateral flexion of the spine

Longus Capitis - origin - insertion - action

- origin:TPs of cervical vertebrae - insertion: occipital bone - action: flexion of the head

Generally speaking, when taking about movement of the back and neck, what term can be used to describe their rotation

neck: ipsilateral movements back: contralateral movements for the most part

rectus capitus lateralis - origin - insertion - action

- origin: TP of Atlas (C1) - insertion: occipital bone - action: stabilizes head, weak lateral flexion of the head

Interspinalis - origin? - Insertion? - actions?

- origin: SP of one vertebrae - Insertion: SP of the vertebrae above - actions: Extension of the spine

what is the triangle of Auscultation? | what is it bordered by?

- its an area of muscle thinning where clear respiratory sounds can be heard - bordered by Trapezius, Latissimus Dorsi and Rhomboid Major

what are the anterior Deep muscles of the neck?

- Rectus capitis Lateralis - Rectus Capitis Anterior - Longus Capitis - Longus Colli

what muscles form the suboccipital triangle?

it is bordered by - Rectus capitus Major, Obliquus capitis inferior - Obliquus capitis superior

how are the suboccipital muscles (posterior) of the neck innervated?

suboccipital nerve (posterior ramus of C1)

what extrinsic back muscles are found in the second superficial layer

Levator Scapulae Rhomboid Minor Rhomboid Major

where are the scalenes located?

anterior muscle of the neck