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Mammalian Anatomy > Head and Neck Muscles: Origin and Innervation (1) > Flashcards

Head and Neck Muscles: Origin and Innervation (1) Flashcards

1
Q

Sternohyoid

A
  • Origin: Posterior surface of the sternum and inner clavicle
  • Innervation: Anterior rami of spinal nerves C01-C03 via the ansa cervicalis of the cervical plexus
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2
Q

Sternothyroid

A
  • Origin: Posterior surface of the sternum

- Innervation: Anterior rami of spinal nerves C01-C03 via the ansa cervicalis of the cervical plexus

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3
Q

Omohyoid

A
  • Origin: Superior border of the scapula near the suprascapular notch
  • Innervation: Anterior rami of spinal nerves C01-C03 via the ansa cervicalis of the cervical plexus
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4
Q

Stylohyoid

A
  • Origin: Lateral surface of the styloid process

- Innervation: Stylohyoid branch of the facial nerve (CN07/CN VII)

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5
Q

Buccinator

A
  • Origin: Alveolar process of the maxilla and mandible

- Innervation: Buccal branch of the facial nerve (CN07/ CN VII)

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6
Q

Medial pterygoid

A
  • Origin: Medial surface of the lateral pterygoid plate

- Innervation: Mandibular branch of the trigeminal nerve (CN05/CN V)

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7
Q

Lateral pterygoid

A
  • Origin: Lateral pterygoid plate

- Innervation: Mandibular branch of the trigeminal nerve (CN05/CN V)

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8
Q

Temporalis

A
  • Origin: Temporal fossa

- Innervation: Mandibular branch of the trigeminal nerve (CN05/CN V)

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9
Q

Masseter

A
  • Origin: Zygomatic arch

- Innervation: Mandibular branch of the trigeminal nerve (CN05/ CN V)

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10
Q

Mylohyoid

A
  • Origin: Interior surface of the mandible

- Innervation: Mylohyoid branch of the trigeminal nerve (CN05/CN V)

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11
Q

Digastric muscles

A
  • Origin: Lower border of the jaw

- Innervation: Mylohyoid branch of the trigeminal nerve (CN05/CN V)

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12
Q

Thryohyoid

A
  • Origin: Oblique line of the thyroid cartilage

- Innervation: Anterior rami of spinal nerve C1 via the hypoglossal nerve (CN12/CN XII)

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13
Q

Sternomastoid

A
  • Origin: Manubrium and median raphe

- Innervation: Ventral rami of spinal nerves C01-C03/ accessory nerve (CN11/CN XI)

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14
Q

Cleidomastoid

A
  • Origin: Mastoid process

- Innervation: Ventral rami of spinal nerves C02 + C03/ accessory nerve (CN11/ CN XI)

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15
Q

Sternoclediomastoid (in humans)

A
  • Origin: Anterior surface of the manubrium and medial third of the clavicle
  • Innervation: Accessory nerve (CN11/ CN XI) branches from the anterior divisions of spinal nerves C02 + C03
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Mammalian Anatomy (11 decks)

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