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muscles of the skull and neck > Suprahyoid Muscle > Flashcards

Suprahyoid Muscle Flashcards

1
Q

Origin: styloid process of temporal bone

Insertion: body of hyoid bone

Action: elevate hyoid bone

Fiber Direction: inferior, anterior

A

Stylohyoid bone

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2
Q
  • has 2 muscle bellies

Origin: medial surface of mastoid process, inferior surface of body of mandible

Insertion: body of hyoid bone

Action: elevate hyoid bone

Fiber direction: posterior belly inferior,anterior ;

Anterior belly inferior, posterior

A

Digastric Muscle

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3
Q
  • has bigger muscle bellies

Origin: inferior surface of mandible

Insertion: body of hyoid bone

Action: elevates the hyoid bone

Fiber direction: inferior;posterior

A

Mylohyoid

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4
Q

Origin: inferior surface of mentle of mandible

Insertion: body of hyoid bone

Action: elevates the hyoid bone

Fiber direction: posterior

A

Geniohyoid

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5
Q

4 parts of suprahyoid muscles

A
  1. Stylohyoid
  2. Digastric
  3. Mylohyoid
  4. Geniohyoid
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6
Q

No joints formation, hanging only, attached through ligaments and muscle

A

Hyoid bone

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7
Q

3 parts of hyoid bone

A
  1. Greater horn- side bone
  2. Body of the hyoid bone- anterior
  3. Lesser horn
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8
Q

What is the origin of stylohyoid bone?

A

Origin: styloid process of temporal bone

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9
Q

What is the insertion of stylohyoid bone?

A

Insertion: Body of hyoid bone

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10
Q

What is the action of stylohyoid bone?

A

Action: elevate hyoid bone

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11
Q

Fiber direction of stylohyoid bone?

A

Fiber direction: inferior;anterior

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12
Q

What is the Origin of mylohyoid bone?

A

Origin: inferior surface of mandible

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13
Q

Insertion of mylohyoid bone?

A

Insertion:body of hyoid bone

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14
Q

Action of mylohyoid bone?

A

Action: elevate hyoid bone

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15
Q

Fiber direction of mylohyoid bone?

A

Inferior;posterior

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16
Q

Origin of digastric muscle?

A

Medial surface of mastoid process,

Inferior surface of body of mandible

17
Q

Insertion of digastric?

A

Body of hyoid bone

18
Q

Action of digastric

A

Elevate the hyoid bone

19
Q

Fiber direction of digastric?

A

Posterior belly: inferior;anterior

Anterior belly: inferior;posterior

20
Q

Origin of Geniohyoid?

A

Inferior surface of mentle of the mandible

21
Q

Insertion of geniohyoid?

A

The body of the hyoid bone

22
Q

Action of geniohyoid?

A

Elevate the hyoid bone

muscles of the skull and neck (16 decks)

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