Neck Flashcards by Nora Aziz

Q

SCM origin

A

Manubrium and medial third of clavicle

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Q

SCM action

A

Neck flexion,
Ipsilateral rotation,
Ipsilateral flexion of neck

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Q

Sternohyoid origin

A

Manubrium

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Q

Sternohyoid insertion

A

Hyoid bone

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Q

Sternohyoid action

A

Depresses hyoid

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Q

Omohyoid origin

A

Superior border of the scapula

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Q

Omohyoid insertion

A

Hyoid bone

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Q

Omohyoid action

A

Depresses hyoid

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Q

Sternothyroid origin

A

Posterior side of manubrium

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Q

Sternothyroid insertion

A

Thyroid cartilage

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Q

Sternothyroid action

A

Depresses hyoid and larynx

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Q

Thyrohyoid origin

A

Thyroid cartilage

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Q

Thyrohyoid insertion

A

Hyoid bone

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Q

Thyrohyoid action

A

Depresses hyoid and elevates larynx

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Q

Anterior digastric origin

A

Mandible

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Q

Anterior digastric insertion

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A

Hyoid bone via intermediate tendon

Q

Anterior digastric action

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A

Elevates hyoid, depresses mandible if hyoid is fixed

Q

Posterior digastric origin

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A

Mastoid process

Q

Posterior digastric insertion

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A

Hyoid bone via intermediate tendon

Q

Posterior digastric action

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A

Elevates and steadies hyoid

Q

Stylohyoid origin

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A

Styloid process

Q

Stylohyoid insertion

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A

Hyoid bone

Q

Stylohyoid action

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A

Elevates hyoid

Q

Mylohyoid origin

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A

Mandible

Mylohyoid insertion

Midline raphe, hyoid

Mylohyoid action

Elevates hyoid, floor of the mouth, tongue

Geniohyoid origin

Inferior mental spines of mandible

Geniohyoid insertion

Hyoid bone

Geniohyoid action

Elevates hyoid

Anterior scalene origin

Transverse processes of cervical vertebrae

Anterior scalene insertion

1st rib

Anterior scalene action

Elevates 1st rib, laterally flexes neck

Middle scalene origin

Transverse processes of cervical vertebrae

Middle scalene insertion

1st rib

Middle scalene action

Elevates 1st rib, laterally flexes neck

Posterior scalene origin

Transverse processes of cervical vertebrae

Posterior scalene insertion

2nd rib

Posterior scalene action

Elevates 2nd rib, laterally flexes neck

SCM insertion

Mastoid process