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Year 2 - Theme 2 > Neck and oral cavity part 2 > Flashcards

Neck and oral cavity part 2 Flashcards

1
Q

How many vertebrae support the neck

A
  • 7 cervical vertebrae posteriorly
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2
Q

What is the mobile bone that is located in the neck

A
  • Hyoid bone
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3
Q

What are the three layers of the deep fascia of the neck

A
  • Pretracheal
  • Prevertebral
  • Investing
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4
Q

Why are the fascia important?

A
  • Reduces the spread of infection

- Enables structures to move past each other in movement and swallowing etc

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5
Q

What does the carotid sheath contain?

A
  • Common and internal carotid arteries
  • Internal jugular vein
  • Vagus nerve
  • Some deep lymph nodes
  • Carotid sinus nerve
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6
Q

What does the posterior fascia help with

A
  • Movement
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7
Q

What does the anterior fascia help with

A
  • Protection of blood vessels and other important structures
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8
Q

What divides the neck into the anterior and lateral compartments?

A
  • Sternocleidomastoid
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9
Q

What are the triangular divisions of the anterior compartment of the neck

A

Into three paired triangles and one unpaired

  • The unpaired submental triangle
  • Paired submandibular
  • Paired carotid and muscular triangles
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10
Q

What is the posterior compartment of the neck divided into

A
  • Bound posteriorly by trapezius muscle
  • Divided into two triangles by the presence of the posterior belly of omohyoid into - the large occipital triangle and the smaller omoclavicular triangle
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11
Q

What is the submandibular triangle bounded by

A
  • Anterior and posterior bellies of diagastric
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12
Q

What does the submandibular triangle contain

A
  • Submandibular gland
  • Facial artery
  • Facial vein
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13
Q

What is the submental triangle bounded by

A

Digastric

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14
Q

What does the submental triangle contain

A

lymph nodes

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15
Q

What is the muscular triangle bounded by

A
  • Omohyoid
  • Digastric
  • Sternocleidomastoid
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16
Q

What does the muscular triangle contain

A
  • Suprahyoid muscle

- Infrahyoid muscle

17
Q

What is the carotid triangle bounded by

A
  • Omohyoid
  • Stylohyoid
  • Digastric
  • SCM
18
Q

What does the carotid triangle contain

A
  • Common carotid artery
  • IJV
  • Hypoglossal nerve
  • Vagus nerve
  • Accessory nerve
19
Q

What are the suprahyoid muscles

A
  • Mylohyoid
  • Geniohyoid
  • digastric
  • stylohyoid
20
Q

Innervation of the suprahyoid muscles

A
  • Facial nerve for stylohyoid and posterior belly of digastric
  • Mylohyoid by CNV
  • Geniohyoid by CNXII
21
Q

What are the infrahyoid muscles

A
  • Omohyoid
  • Sternohyoid
  • Thyrohyoid
22
Q

Innervation of infrahyoid muscles

A
  • C1-C3 of ansa cervicalis
23
Q

What are the contents of the posterior triangle

A
  • Subclavian artery
  • EJV
  • Brachial plexus
  • CN XI
  • Cervical plexus
24
Q

What is the occipital triangle bounded by

A
  • SCM, trapezius and omohyoid
25
Q

What is the supraclavicular triangle bounded by

A
  • Clavicular head of SCM
  • Clavicle
  • Omohyoid
26
Q

Where do the roots of the cervical plexus C1-C4 lie?

A
  • Anterior to levator scapulae
27
Q

What does the cervical plexus provide

A
  • Cutaneous branches and deep motor branches(ansa cervicalis and phrenic nerve)
28
Q

Where do the roots of the brachial plexus C5-T1 appear?

A
  • Between the anterior and middle scalene muscles
29
Q

What do the five rami C5-T1 unite to form?

A
  • Five rami unite to form the three trunks of the brachial plexus
30
Q

What does the brachial plexus innervate

A
  • Supplies cutaneous and motor innervation to the upper limb
31
Q

What are the major vessels that travel in the neck to supply the viscera, upper limb and head

A
  • Brachiocephalic division
  • Common carotid division
  • Internal and external carotids
  • External carotid divides into 6 branches to supply the neck and head
  • Superior thyroid, ascending pharyngeal, lingual, facial, maxillary, superificial temporal
  • Subclavian arteries - inferior thyroid
  • Internal carotid
32
Q

Venous drainage of head and neck

A
  • Internal jugular vein drains the brain, face, cervical viscera and neck muscles
  • External jugular vein
  • Anterior jugular vein
33
Q

What is the type of innervation provided by cranial nerve XI

A

Type - motor to sternocleidomastoid and trapezius

34
Q

What is the type of innervation provided by CNVIII

A
  • Sensory, special somatic afferent for hearing, equilibrium and motion
35
Q

What does CNVIII divide into

A
  • Vestibular

- Cochlear

Year 2 - Theme 2 (14 decks)

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