Chapter 9 (Deep Structures [Root] of Neck) Flashcards Preview

OCT 720 > Chapter 9 (Deep Structures [Root] of Neck) > Flashcards

Flashcards in Chapter 9 (Deep Structures [Root] of Neck) Deck (14)
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1
Q
(Anterior Vertebral Muscles)
Longus colli (Innervation and action)
A
  • Innervation: Anterior rami C2-C6 spinal nerves

- Action: Flexes neck with rotation (torsion) to opposite side if action unilaterally

2
Q
(Anterior Vertebral Muscles)
Longus capitis (innervation and action)
A
  • Innervation: Anterior rami of C1-C3 spinal nerves

- Action: Flex head

3
Q

(Anterior Vertebral Muscles)

Rectus capitis anterior (innervation and action)

A
  • Innervation: Branches form loop between C1 and C2 spinal nerves
  • Action: flex head
4
Q
(Anterior Vertebral Muscles)
Anterior scalene (innervation and action)
A
  • Innervation: Cervical spinal nerves C4-C6

- Action: flex head

5
Q

(Lateral Vertebral Muscles)

Rectus capitis lateralis (innervation and action)

A
  • Innervation: Branches form loop between C1 and C2 spinal nerves
  • Action: Felxes head and helps stabilize it
6
Q
(Lateral Vertebral Muscles)
Splenius capitis (innervation and action)
A
  • Innervation: Posterior rami of middle cervical spinal nerves
  • Action: Laterally flexes and rotates head and neck to same side; extends head and neck
7
Q
(Lateral Vertebral Muscles)
Levator scapulae (Innervation and action)
A
  • Innervation: Dorsal scapular nerve C5 and cervical spinal nerves C3 and C4
  • Action: Downward rotation of scapula and tilts its glenoid cavity inferiorly by rotating scapula
8
Q
(Lateral Vertebral Muscles)
Middle scale (innervation and action)
A
  • Innervation: anterior rami of cervical spinal nerves

- Action: Flexes neck laterally; elevates 1st rib during forced inspiration

9
Q
(Lateral Vertebral Muscles)
Posterior scalene (innervation and action)
A
  • Innervation: Anterior rami of cervical spinal nerves C7 and C8
  • Action: Flexes neck laterally; elevates 2nd rib during forced inspiration
10
Q

(Neurovascular Structures)

Key arteries include:

A
  • Brachiocephalic trunk

- Subclavian arteries (right and left) and branches

11
Q

(Neurovascular Structures)

Subclavian arteries and branches:

A
  • 1st part: vertebral artery, internal thoracic artery, and thyrocervical trunk
  • 2nd part: costocervical trunk
  • 3rd part: dorsal scapular artery
12
Q

(Neurovascular Structures)

Nerves in the root of neck:

A
  • Vagus nerve (CN X)
  • Phrenic nerves
  • Sympathetic trunks
13
Q

(Neurovascular Structures)

Key veins include:

A
  • External jugular vein
  • Anterior jugular vein
  • Subclavian vein
14
Q

(Neurovascular Structures)

Lesion of the cervical sympathetic trunks may produce…

A
  • Contraction of the pupil (miosis)
  • Drooping of the superior eyelid (ptosis)
  • Sinking in of the eye, and/or vasodialation/absence of sweat on the face and neck (anhydrosis)

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