Hyoid muscles suprahyoid & infrahyoid group Flashcards by Rhiannon Koch

Q

Genlohyoidmuscle origin

A

Inferior Genial Tubercles

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Q

Genlohyoidmuscle insertion on

A

Hyloid bone

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Q

Genlohyoidmuscle function

A

Elevate Hyoid bone

Depression of mandible

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Q

Genlohyoidmuscle innervation

A

C1

via

Hypoglossa CN XII

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Q

Mylohoid muscle origin

A

Mylohyoid line

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Q

Mylohoid muscle insertion on

A

Hyoid bone

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Q

Mylohoid muscle function

A

Elevates Hyoid bone

Depression of the mandible

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Q

Mylohoid muscle innervation

A

Trigeminal CN V3

Mylohyoid branch

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Q

Stylohyoid muscle origin

A

Styloid process

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Q

Stylohyoid muscle insertion

A

Hyoid bone

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Q

Stylohoid muscle function

A

Elevates Hyoid bone

(lifts it up & back)

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Q

Stylohoid muscle innervation

A

Facial nerve

digastric branch

(stylohyoid nerve)

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Q

Digastric muscles origin

(2 bellies)

A

Ant belly:Digastric fossa

Post belly: Mastoid process

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Q

Digastric muscles insertion

A

Hyoid bone

via

intermediate tendon

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Q

Digastric muscles function

A

Elevates Hyoid bone

Retrudes mandible

Lifts larynx

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Q

Digastric muscles innervation

A

Ant belly: Trigeminal CNV3-mylohyoid branch

Post belly: Facial nerve-digastric branch

Q

Omohyoid muscle origin

and function

A

Scapula to Hyoid

Depress Hyoid bone

Q

Thyrohyoid muscle origin

and function

A

Sternum to Hyoid

Depresses hyoid bone

Q

Sternothyroid muscle origin and function

A

Sternum to thyroid cartilagen of larynx

Depresses larynx

Q

Thyroid muscle origin and function

A

Thyroid cartilage to hyoid

Depresses Hyoid bone

Q

Omohyoid muscle has?

A

2 bellies

Forms triangles of neck

Q

Sternohyoid is?

A

Superficial to the sternothyroid muscle

Gland

& cartilage

Q

What does the sternthyriod do & its location?

A

Depresses thyroid cartilage & larynx

Does NOT directly depress hyoid bone

located superficial to thyroid gland

Q

What does the Thyroidhyoid muscle do?

A

Depresses hyiod bone

Raises thyroid cartilage and larynx