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Anatomy 2 > Anterior Triangle of the Neck > Flashcards

Anterior Triangle of the Neck Flashcards

(52 cards)

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1
Q

What are the 4 attachments of investing fascia of the anterior triangle of the neck?

A
  1. Mandible
  2. Mastoid process
  3. Superior nuchal line
  4. Sternum and clavicle
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2
Q

What 2 glands does the deep cervical fascia of the anterior triangle of the neck enclose?

A
  1. Parotid salivary

2. Submandibular salivary

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3
Q

What 2 muscles does the deep cervical fascia of the anterior triangle of the neck enclose?

A
  1. Sternocleidomastoid

2. Trapezius

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4
Q

What 2 things does the sling formed by the deep fascia of the anterior triangle of the neck enclose?

A
  1. Intermediate tendon of omohyoid to clavicle

2. Intermediate tendon of digastric to hyoid

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5
Q

What are the 4 types of deep cervical fascia of the anterior triangle of the neck?

A
  1. Investing fascia
  2. Pretracheal
  3. Prevertebral
  4. Carotid sheath
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6
Q

What 3 things can be found in the pretracheal fascia?

A
  1. Trachea
  2. Oesophagus
  3. Thyroid gland
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7
Q

What 4 things can be found in the carotid sheath?

A
  1. Internal jugular vein
  2. Common carotid artery
  3. Internal carotid artery
  4. Vagus nerve
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8
Q

What is the origin of the sternocleidomastoid?

A
  1. Sternal head

2. Clavicular head

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9
Q

What is the insertion of the sternocleidomastoid?

A

Mastoid process and lateral half of the superior nuchal line

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10
Q

What is the nerve supply of the sternocleidomastoid?

A

Spinal part of accessory

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11
Q

What are the 2 unilateral actions of the sternocleidomastoid?

A
  1. Tilting head to the same side

2. Rotating the face to the opposite side

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12
Q

What is the bilateral action of the sternocleidomastoid?

A

Flexion of the neck

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13
Q

What are the boundaries of the anterior triangle of the neck?

A
  1. Middle line of the neck (anterior)
  2. Anterior boarder of sternocleidomastoid (posterior)
  3. Base of the mandible (superior)
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14
Q

What are the 4 triangles found within the anterior triangle of the neck?

A
  1. Carotid
  2. Digastric / Submandibular
  3. Submental
  4. Muscular
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15
Q

What are the 3 boundaries of the submental triangle?

A
  1. Anterior belly digastric (right)
  2. Midline of neck (left)
  3. Hyoid bone (inferior)
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16
Q

What forms the floor of the submental triangle?

A

Mylohyoid muscle

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17
Q

What are the 2 major contents of the submental triangle?

A
  1. Submental lymph node

2. Submental artery and vein

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18
Q

What are the 3 boundaries of the digastric triangle?

A
  1. Anterior belly digastric
  2. Posterior belly digastric
  3. Base of mandible
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19
Q

What 2 things form the floor of the digastric triangle?

A
  1. Mylohyoid muscle (anterior)

2. Hypoglossus muscle (posterior)

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20
Q

What are the 5 major contents of the anterior part of the digastric triangle?

A
  1. Submandibular gland
  2. Submandibular lymph node
  3. Facial vessels
  4. Hypoglossal nerve
  5. Nerve to mylohyoid
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21
Q

What are the 4 major components of the posterior part of the digastric triangle?

Study These Flashcards
A
  1. Internal carotid artery
  2. External carotid artery
  3. Internal jugular vein
  4. Vagus nerve
22
Q

What 3 things separate the internal carotid and external carotid arteries?

Study These Flashcards
A
  1. Stylopharyngeus muscle
  2. Styloglossus muscle
  3. Glossopharyngeal nerve
23
Q

What are the 3 boundaries of the carotid triangle?

Study These Flashcards
A
  1. Anterior boarder of sternocleidomastoid
  2. Posterior belly of digastric
  3. Superior belly of omohyoid
24
Q

What 2 things form the anterior part of the floor of the carotid triangle?

Study These Flashcards
A
  1. Hypoglossus muscle

2. Thyrohyoid muscle

25
What forms the posterior part of the floor of the carotid triangle?
1. Pharyngeal muscles
26
What are the 5 major vessels found in the carotid triangle?
1. Common carotid artery 2. Internal carotid artery 3. External carotid artery 4. Internal jugular vein 5. Some branches of external carotid artery
27
What are the 5 major nerves found in the carotid triangle?
1. CN X 2. CN XI 3. CN XII 4. Ansa cervicalis 5. Sympathetic trunk
28
Describe the location of the ansa cervicalis within the carotid triangle
Outer surface of carotid sheath
29
Describe the location of the sympathetic trunk within the carotid triangle
Lies behind the carotid sheath
30
What 3 things form the ansa cervicalis?
1. Descendens hypoglossi of C1 2. Root from ventral ramus of C2 3. Root from ventral ramus of C3
31
What are the boundaries of the muscular triangle of the anterior triangle of the neck?
1. Anterior boarder of sternocleidomastoid 2. Superior belly of omohyoid muscle 3. Midline of the front of the neck
32
What are the 2 major components of the muscular triangle of the anterior triangle of the neck?
1. Thyroid gland | 2. Infrahyoid muscles
33
What are the 4 major infrahyoid muscles?
1. Sternohyoid 2. Sternothyroid 3. Thyrohyoid 4. Superior belly of omohyoid
34
What nerve supplies the infrahyoid muscles?
Ansa cervicalis except thyrohyoid
35
What is the nerve supply of the thyrohyoid?
Fibres from first cervical spinal nerve travelling with hypoglossal nerve
36
What is the origin of the sternohyoid?
Back of manubrium of sternum
37
What is the insertion of the sternohyoid?
Hyoid bone
38
What is the function of the sternohyoid?
Depression of hyoid bone
39
What is the origin of the sternothyroid?
Back of manubrium of sternum
40
What is the insertion of the sternothyroid?
Oblique line of thyroid cartilage
41
What is the function of the sternothyroid?
Depression of the larynx
42
What is the origin of the thyrohyoid?
Oblique line of thyroid cartilage
43
What is the insertion of the thyrohyoid?
Hyoid bone
44
What is the function of the thyrohyoid?
Depression of the hyoid bone
45
What are the 2 origins of the omohyoid?
1. Inferior belly from upper boarder of scapula | 2. Superior belly from hyoid bone
46
What is the insertion of the omohyoid?
Intermediate tenodn
47
What is the action of the omohyoid?
Depression of the hyoid bone
48
What are the 5 suprahyoid muscles?
1. Stylohyoid 2. Posterior belly digastric 3. Anterior belly digastric 4. Mylohyoid 5. Geniohyoid
49
What is the nerve supply of the stylohyoid?
CN VII
50
What is the nerve supply of posterior belly digastric?
CN VII
51
What is the nerve supply of anterior belly digastric?
CN V and nerve to mylohyoid
52
What is the nerve supply of the geniohyoid?
Spinal nerve C1

Anatomy 2 (24 decks)

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