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Macroscopic anatomy > Muscles of the head and neck > Flashcards

Muscles of the head and neck Flashcards

1
Q

Name the muscles of mastication

A

Temporalis, masseter, medial pterygoid, lateral pterygoid

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2
Q

Which muscles take part in the elevation of the Jaw?

A

Temporalis, Masseter, Medial Pterygoid

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3
Q

Which muscles take part in the depression of the jaw? (Opening the mouth)

A

Muscles of mastication: Lateral pterygoid

assist by a fascial muscle: Platysma

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4
Q

Platysma

A

Orgin: Subcutaneous tissue of infraclavicular and supraclavicular regions
Insertion: Base of the mandible, skin of the cheek and lowe lip (orbicularis oris)
Nerve: Fascial nerve

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5
Q

Sternocleidomastoid

A

ORGIN: Sternum (manubrium) and clavicle
INSERTION: Mastoid process & superior nuchal line
Nerve: Motor: Accessory nerve (CN 11)
sensor: Cervical plexus

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6
Q

Longus capitis

A

ORGIN: Anterior tubercle of transverse process C3-C6
INSERTION: Basilar part of occipital bone
N: Cervical plexus

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7
Q

Longus colli/ Longus cervicis

A 
ORGIN: Ant. surface of C5-C7
& T1-T3 vertebral bodies
Superior oblique part: Transverse process C3-C5
Inferior oblique part: T1-T3
INSERTION: C2-C4
Oblique part: C1
Inf oblique part: C5-C6
N: Cervical plexus
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8
Q

Rectus capitis anterior

A

ORGIN: Lateral mass of the atlas
INSERTION: Basilar part of the occipital bone
N: Ventral rami C1-C2

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9
Q

Rectus capitis lateralis

A

ORGIN: Transverse process of the atlas
INSERTION: Basilar part of the occipital bone
N: Ventral rami C1-C2

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10
Q

Scalene muscle parts

A
  • Anterior scalene
  • Medial scalene
  • Posterior scalene
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11
Q

Anterior scalene

A

ORGIN: Anterior tubercles of the transverse process of the C3-C6
INSERTION: Scalene tubercle on the 1st rib
N: Direct branches from the cervical plexus & brachial plexus

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12
Q

Medial scalene

A

ORGIN: Transverse process of atlas & axis posterior tubercles of the transverse process of the C2-C7
INSERTION: 1st rib, posterior to the groove for the subclavian artery
N: Direct branches from the cervical plexus & brachial plexus

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13
Q

Posterior scalene

A

ORGIN: Posterior tubercles of the transverse process of the C5-C7
INSERTION: Outer surface of 2nd rib
N: Direct branches from the cervical plexus & brachial plexus

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14
Q

Rectus capitis posterior major

A

ORGIN: Spinous process of the axis
INSERTION: Inferior nuchal line
N: Suboccipital nerve, dorsal ramus of C1

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15
Q

Rectus capitis posterior minor

A

ORGIN: Tubercle on the posterior arch of atlas
INSERTION: Medial part of the inferior nuchal line & the surface between it & foramen magnum
N: Suboccipital nerve, dorsal ramus of C1

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16
Q

Obliquus capitis inferior

A

ORGIN: Spinous process of the axis
INSERTION: Lateral mass of atlas
N: Suboccipital nerve, dorsal ramus of C1

17
Q

Obliquus capitis superior

A

ORGIN: Transverse process of atlas
INSERTION: Inferior nuchal line
N: Suboccipital nerve, dorsal ramus of C1

18
Q

Name the suprahyoid muscles

A

Mylohyoid, Digastric, Stylohyoid, Geniohyoid

19
Q

Name the infrahyoid muscles/ strap

A

Thyrohyoid, Sternohyoid, sternothyoid, omohyoid

20
Q

Mylohyoid

A

ORGIN: Mylohyoid line (mandible)
INSERTION: Body of hyoid bone & median raphe
N: Mandibular nerve

21
Q

Digastric

A

O: Anterior belly: digastric fossa (mandible) Posterior belly: Mastoid process
INSERTION: Intermediate tendon (hyoid bone)
N: Ant: Belly: CN: V (5)
Post belly: CN 7

22
Q

Stylohyoid

A

O: Styloid process (temporal bone)
INSERTION: Greater horn of hyoid bone
N: Fascial nerve CN 5

23
Q

Geniohyoid

A

ORGIN: Inferior mental spine of mandible
Insertion: Hyoid bone
N: Hypoglossal nerve (CN 12)

24
Q

Thyrohyoid

A

ORGIN: Thyroid cartilage of the larynx
INSERTION: Hyoid bone
NERVE: First cervical nerve via hypoglossal nerve

25
Q

Sternohyoid

A

ORGIN: Manubrium of sternum
INSERTION: Hyoid bone
N: Ansa cervicalis (C1-C3)

26
Q

Sternothyoid

A

ORGIN: Manubrium
INSERTION: Thyroid cartilage
N: Ansa cervicalis (C1-C3)

27
Q

Omohyoid

A

Orgin: Upper border of the scapula
Insertion: Hyoid bone
N: Ansa Cervicalis (C1-C3)

Macroscopic anatomy (35 decks)

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