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Gross Anatomy 4 > Suboccipital Region > Flashcards

Suboccipital Region Flashcards

1
Q

What are the attachments of obliquus capitis inferior?

A

C2 spinous process

To C1 transverse process

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2
Q

What is the role of Obliquus capitis superior?

A

Extends head
Tilts head to same side
Rotates head to opposite side

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3
Q

What is this muscle?

A

Splenius cervicis

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4
Q

What is this muscle?

A

Semispinalis Capitis

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5
Q

What muscles lie either side of the vertebral artery in the suboccipital triangle?

A

Obliquus capitus muscles and the rectus capitis posterior major

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6
Q

Which of the cervical vertebrae are typical in shape?

A

C3 - C6

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7
Q

What are the movements of the rectus capitis muscles?

A

Extends the head

Rotate to the same side

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8
Q

Through which foramen do the vertebral arteries ascend the neck in?

A

Foramen transversarium of the cervical vertebrae

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9
Q

What movement occurs between atlas (C1) and the occipital condyles of the skull?

A

Nodding (yes) movement

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10
Q

What are the 4 muscles that attach to the mastoid process?

A

SCM
Posterior belly of digastric
Splenius Capitis
Longissimus Capitis

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11
Q

What are the attachments of obliquus capitis superior?

A

C1 transverse process

To occipital bone (above the inferior nuchal line)

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12
Q

What are the attachments of rectus capitis posterior minor?

A

C1 posterior tubercle

To inferior nuchal line

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13
Q

What are the attachments of rectus capitis posterior major?

A

C2 spinous process

To the inferior nuchal line

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14
Q

What is this muscle?

A

Splenius capitis

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15
Q

What is this muscle?

A

Rectus capitis posterior minor

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16
Q

What artery supplies the occipital region?

A

The occipital artery

which then descends to anastomose with the deep cervical artery of the subclavian

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17
Q

What muscles are contained within the intermediate layer of the suboccipital region?

A

Splenius capitus

Splenius cervicis

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18
Q

What are the superficial muscles of the suboccipital region?

A

Trapezius
Levator Scapulae
Proximal attachment of the SCM

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19
Q

What are the attachments of longissimis capitis?

A

C4-T3 transverse process

Inserts into the mastoid process

20
Q

What foramen do the vertebral arteries pass through to enter the skull?

A

Foramen Magnum

21
Q

What supplies cutaneous innervation to the suboccipital region?

A

The greater and lesser occipital nerves from the cervical plexus

22
Q

What does the posterior longitudinal ligament of the occipital region become?

A

Tectorial membrane

23
Q

What is the attachments of splenius cervicis?

A

T3-T6 spinous process

To C1-C2 transverse process

24
Q

Describe the union of the left and right vertebral arteries

A

Unite to form the basilar artery which join the Circle of Willis to supply the brain

25
Q

What are the movements associated with splenius capitis and cervicis?

A

Bilaterally - extend the head and neck

Unilaterally - flexes and rotates to the same side

26
Q

Which structure runs with the occipital vein?

A

Suboccipital nerve

27
Q

What movement occurs between the arch of atlas (C1) and the odontoid process of the axis (C2)?

A

Shaking (no) movement

28
Q

What does the dorsal ramus of C3 supply?

A

The skin and muscles of the neck

29
Q

What is this muscle?

A

Longissimus Capitis

30
Q

What is this muscle?

A

Obliquus capitis superior

31
Q

What is this muscle?

A

Obliquus capitis inferior

32
Q

What are the movements of semispinalis capitis?

A

Both extends the cervical spine

One will bend to the same side and rotate to the opposite side

33
Q

What movements occur at the cervical vertebrae?

A

Flexion
Extension
Lateral Bending
Rotation

34
Q

What vein do the occipital veins join with?

A

Deep cervical vein

35
Q

What is the innervation of the suboccipital muscles?

A

Suboccipital nerve- origin is the posterior ramus of C1

36
Q

What are the movements of longissimus capitis?

A

Extends the head (both)

Flexes and rotates the head to the same side

37
Q

What are the attachments of semispinalis capitis?

A

Transverse processes of C4-T7

Inserts into occipital bone between the nuchal lines

38
Q

Which veins does the deep cervical vein communicate with?

A

Vertebral veins

Brachiocephalic vein

39
Q

What are the attachments of splenius capitis?

A

Ligamentum nuchae and C7-T3 spinous processes

Inserts into occipital bone (superior nuchal) and mastoid

40
Q

What is this muscle?

A

Rectus capitis posterior major

41
Q

What is the large non-bifid process of C7 called?

A

Vertebra Prominens

42
Q

What are the suboccipital muscles (4)?

A

Rectus capitis posterior major
Rectus capitis posterior minor
Obliquus capitis superior
Obliquus capitis inferior

43
Q

What is the innervation of splenius capitus and cervicis?

A

Posterior rami of C1-C6

44
Q

What forms the cruciate ligament of the axis and occipital bone?

A

Transverse ligament of atlas

Superior and Inferior longitudinal ligaments

45
Q

What are the attachments of the alar ligament of the occipital region?

A

Passes from the dens of the axis (C2) to the medial sides of the occipital condyles

Gross Anatomy 4 (14 decks)

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