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Head and Neck 1 > Axial muscles > Flashcards

Axial muscles Flashcards

0
Q

Hyoglossus

A

Extrinsic muscle of tongue, CN XII
Depresses, and retracts tongue
Origin: body and greater horn of hyoid
Insertion: lateral tongue

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1
Q

Genioglossus

A

Extrinsic muscle of tongue, CN XII
Depresses and protracts tongue
Origin: superior mental spine,
Insertion: body of tongue, hyoid bone

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2
Q

Palatoglossus

A

Extrinsic muscle of the tongue, CN X
Elevates tongue, depresses, soft palate
Origin: Anterior surface of soft palate
Insertion: lateral tongue

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3
Q

Styloglossus

A

Extrinsic muscle of tongue, CN XII
Elevates and retracts tongue
Origin: styloid process
Insertion: lateral tongue

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4
Q

Constrictor muscles of pharynx, and what their innervated with

A

Superior constrictor
Middle constrictor
Inferior constrictor
All innervated by X

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5
Q

Stylopharyngeus

A

Longitudinal muscle of pharynx, the ONLY one innervated by IX

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6
Q

What are the 3 longitudinal muscles of pharynx, and their innervations?

A

Palatopharyngeus (X)
Salpingopharyngeus (X)
Stylopharyngeus (IX)

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7
Q

Sternocleidomastoid

A 
Muscle of Anterior Neck
Bilateral - flex the neck, unilateral - rotation
Origin: manubrium and clavicle
Insertion: Mastoid region of skull
CN XI, C2-C3
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8
Q

Digastric muscle

A 
Muscles of anterior neck
Suprahyoid muscle
Elevates hyoid during swallowing
Origin: Anterior belly: Mandible, deep side of inferior border
            Posterior belly: Mastoid notch
Insertion: Hyoid bone
Anterior: CN V3
Posterior: CN VII
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9
Q

Stylohyoid

A 
Anterior neck muscles
Suprahyoid
Elevates hyoid during swallowing
Origin: Styloid process
Insertion: Hyoid
CN VII
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10
Q

Mylohyoid

A 
Muscles of anterior neck
Suprahyoid muscles
Moves the oral floor. Tightens and elevates the oral floor, draws hyoid forward during swallowing, helps move mandible side to side
Origin: mylohyoid line of mandible
Insertion: hyoid bone
CN V3
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11
Q

Geniohyoid

A 
Muscles of anterior neck
Suprahyoid muscles
Draws hyoid forward
Origin: inferior mental spine (genio tubercle)
Insertion: hyoid bone
C1 via XII
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12
Q

Omohyoid

A 
Muscles of anterior neck
Infrahyoid muscles
Depresses hyoid during end of swallowing
Origin: superior border of scapula
Insertion: hyoid bone
Ansa cervicalis (C1-C3)
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13
Q

Sternohyoid

A 
Anterior neck, infrahyoid
Depresses hyoid bone during end of swallowing
Origin: manubrium of sternum, 
Insertion: hyoid bone
Ansa cervicalis (C1-C3)
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14
Q

Sternothyroid

A 
Anterior neck, infrahyoid
Depresses neck during end of swallowing
Origin: Manubrium
Insertion: Thyroid cartilage
Ansa cervicalis (C2-C3)
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15
Q

Thyrohyoid

A

Anterior neck, infrahyoid
Depresses hyoid, raises larynx during swallowing
Origin: Thyroid cartilage
I: hyoid bone

Head and Neck 1 (11 decks)

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