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Spaces/fossa of back/upper extremity > Suboccipital triangle > Flashcards

Suboccipital triangle Flashcards

1
Q

Superior border of suboccipital triangle

A

obliquus capitis superior

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2
Q

Inferior border of suboccipital triangle

A

obliquus capitis inferior

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3
Q

Medial border of suboccipital triangle

A

rectus capitis posterior major

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4
Q

Blood supply of suboccipital triangle

A

vertebral artery

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5
Q

Innervation of suboccipital triangle

A

suboccipital nerve of dorsal ramus of C1

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6
Q

Nerve passing superior to suboccipital triangle

A

greater occipital nerve of dorsal ramus of C2

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7
Q

Muscle medial TO suboccipital triangle

A

rectus capitis posterior minor

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8
Q

Artery lateral TO suboccipital triangle

A

occipital artery

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9
Q

Proximal attachment of obliquus capitis superior

A

transverse process of atlas (C1)

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10
Q

Distal attachment of obliquus capitis superior

A

occipital bone between inferior and superior nuchal line

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11
Q

Proximal attachment of obliquus capitis inferior

A

spinous process of axis (C2)

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12
Q

Distal attachment of obliquus capitis inferior

A

transverse process of atlas (C1)

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13
Q

Proximal attachment of rectus capitis posterior major

A

spinous process of axis (C2)

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14
Q

Distal attachment of rectus capitis posterior major

A

lateral part of inferior nuchal line

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15
Q

Proximal attachment of rectus capitis posterior minor

A

posterior tubercle of posterior arch of atlas (C1)

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16
Q

Distal attachment of rectus capitis posterior minor

A

medial part of inferior nuchal line

17
Q

Floor of suboccipital triangle

A

posterior atlanto-occipital membrane and posterior arch of C1

18
Q

Roof of suboccipital triangle

A

semispinalis capitis

19
Q

Vertebral artery

A

first branch of subclavian artery
winds through transverse foramina C1-C6
passes through dura and arachnoid to enter foramen magnum

20
Q

Suboccipital nerve

A

innervates muscles of suboccipital triangle

dorsal ramus of C1 spinal nerve

Spaces/fossa of back/upper extremity (7 decks)

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