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Anatomy > Neck Anatomy/Laminectomy > Flashcards

Neck Anatomy/Laminectomy Flashcards

1
Q

Muscles innervated by ansa cervicalis

A 
4 Infrahyoid muscles
-Sternohyoid
-Omohyoid
-Sternothyroid
-Thyrohyoid
1 Suprahyoid muscle
-Geniohyoid
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2
Q

Anterior longitudinal ligament

A

Prevents hyperextension

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3
Q

Posterior longitudinal ligament

A

Prevents hyperflexion

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4
Q

Ligamentum Flavum

A

Connects the lamina of adjacent vertebrae

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5
Q

Supraspinous ligament

A

Connects the spinous processes

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6
Q

Interspinous

A

In-between the spinous processes

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7
Q

Platysma

A

Action: Tenses the skin of the neck and lower mandible

Innervation: Cranial nerve 7

Blood Supply: Subclavian and external carotid

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8
Q

Trapezius

A

Elevate, depress, retract, abduct

Cranial Nerve 11

Blood supply: Subclavian and External carotid

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9
Q

Sternocleidomastoid

A

Action: Turn the head towards the opposite side

Innervation: Cranial nerve 11

Blood Supply: External carotid

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10
Q

What is the site of an emergency tracheostomy?

A

Cricothyroid membrane

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11
Q

Suprahyoid muscles

A 
Anterior belly of the digastric
Posterior belly of the digastric
Stylohyoid
Mylohyoid
Geniohyoid
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12
Q

Infrahyoid muscles

A 
Sternohyoid
Omohyoid
Sternothyroid
Thyrohyoid
Cricothyroid
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13
Q

What is the blood supply to the suprahyoid and infrahyoid muscles?

A

External carotid artery

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14
Q

Anterior Belly of Digastric

A

Action: Depress mandible to open the mouth when the hyoid is fixed. Elevates the hyoid when the mandible is fixed

Innervation: V3

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15
Q

Posterior belly of digastric

A

Innervation: Facial Nerve (CN 7)

Action: Elevates and pulls back hyoid

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16
Q

Stylohyoid

A

Action: Elevates and pulls back hyoid

Innervation: Facial nerve (CN 7)

17
Q

Mylohyoid

A

Innervation: V3

Action: Support and elevate floor of mouth; elevate hyoid

18
Q

Geniohyoid

A

Innervation: C1 of ansa cervicalis

Action: Elevates and pulls hyoid forward when mandible is fixed; Depresses and pulls mandible in when hyoid is fixed

19
Q

Sternohyoid

A

Innervation: Ansa cervicalis
Action: Depresses hyoid after swallowing

20
Q

Omohyoid

A

Innervation: Ansa cervicalis
Action: Depresses and fixes hyoid

21
Q

Sternohyoid

A

Innervation: Ansa cervicalis
Action: Draws larynx (thyroid cartilage) down

22
Q

Thyrohyoid

A

Innervation: Ansa cervicalis
Action: Depresses hyoid; elevates larynx when hyoid is fixed

23
Q

Cricothyroid

A

Innervation: Vagus
Action: Changes vocal pitch

24
Q

What is Erb’s point?

A

Point on the neck where the sensory division of the cervical plexus becomes cutaneous

Useful for performing a cervical plexus nerve block

25
Q

What cranial nerves pass through the neck?

A 
Trigeminal nerve
Facial nerve
Glossopharyngeal nerve
Vagus nerve
Spinal accessory nerve
Hypoglossal
26
Q

Damage to which cervical ganglion causes Horner’s syndrome?

A

Superior cervical ganglion

27
Q

Which carotid artery branches off in the neck?

A

External carotid

28
Q

Branches of the external carotid artery

A 
Superior thyroid
Ascending pharyngeal
Lingual
Facial
Occipital
Posterior auricular
Maxillary
Superficial
29
Q

What is thoracic outlet syndrome?

A

A cluster of disorders occurring when the nerves and vessels are compresses at the thoracic outlet (region of the clavicle and first rib)

Results in pain and numbness in the upper extremity

30
Q

Pancoast’s Syndrome

A

A tumor associated with the apex of the lung that can compress structures in the root of the neck

Results in pain in the shoulder, which then can progress along the upper extremity

31
Q

What passes through an intervertebral foramen?

A

Spinal nerve

32
Q

Structures of the carotid sheath

A

Internal and external carotids
Ansa cervicalis
Nerve of hering
Vagus nerve

Anatomy (2 decks)

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