Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Gross Anatomy 2 > Anterior Triangle of the Neck > Flashcards

Anterior Triangle of the Neck Flashcards

1
Q

What structure divides the two triangles of the neck

A

The sternocleidomastoid (SCM) muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the boundaries or the anterior triangle of the neck

A 
Anterior = imaginary midline of the neck
Posterior = anterior border of the SCM
Base = mandible
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How many divisions are within the anterior triangle

A

4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Name the divisions of the anterior triangle

A
  1. Sub-mental
  2. Sub-mandibular
  3. Carotid
  4. Muscular
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Name the components of the sub-mental division

A
  1. Sub-mental lymph nodes

2. Beginning of the anterior jugular vein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Name the components of the sub-mandibular division

A
  1. Sub-mandibular salivary gland
  2. Lymph nodes
  3. Facial artery and vein
  4. Carotid sheath
  5. Hypoglossal nerve
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Name the components of the carotid division

A
  1. Carotid sheath
  2. Branches of the external carotid artery
  3. Internal jugular vein
  4. Hypoglossal, vagus and accessory nerves
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Name the components of the muscular division

A
  1. Thyroid gland
  2. Larynx
  3. Trachea
  4. Oesophagus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What muscles are associated with the muscular division

A

The strap muscles of the neck (infrahyoid muscles)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Describe the proximal and distal attachments of the platysma muscle

A

From the fascia above the pectoralis major and clavicle to the lateral neck and mandible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What nerve innervates the platysma muscle

A

The facial nerve (CN VII)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Describe the orientation of the jugular veins in relation to the SCM

A 
External = anterior to the SCM
Internal = posterior to the SCM
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the root value of the cervical plexus

A

Anterior rami of C1-4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What fascia covers the cervical plexus

A

The pre-vertebral layer of deep cervical fascia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the anatomical term of the external ear

A

The auricle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the root value of the ansa cervicalis

A

C1, 2, 3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Where is the suprahyoid space located

A

Between the hyoid bone and the mandible/skull

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Where is the infrahyoid space located

A

Between the hyoid bone and the sternum or thyroid cartilage

19
Q

Name the suprahyoid muscles

A
  1. Mylohyoid
  2. Geniohyoid
  3. Stylohyoid
  4. Digastric (2 bellies)
20
Q

Describe the innervation of the suprahyoid muscles

A

Facial nerve = posterior belly of the digastric muscle, and the stylohyoid muscle
Mandibular division of the trigeminal nerve = anterior belly of the digastric muscle, and the mylohyoid muscle
Hypoglossal nerve = geniohyoid

21
Q

What is the function of the suprahyoid muscles

A

Raise the hyoid bone or depress the mandible

22
Q

Name the infrahyoid muscles

A
  1. Sternohyoid
  2. Omohyoid
  3. Sternothyroid
  4. Thyrohyoid
23
Q

What is the function of the infrahyoid muscles

A

Depress the hyoid bone/thyroid cartilage

24
Q

Describe the innervation of the infrahyoid muscles

A

Ansa cervicalis = sternohyoid, omohyoid, and sternothryoid

Hypoglossal nerve = thyrohyoid

25
Q

Where do the common carotid arteries originate from

A 
Left = arch of the aorta
Right = brachiocephalic trunk
26
Q

Describe the contents of the carotid sheath

A
  1. Common carotid artery
  2. Internal jugular vein
  3. Vagus nerve
27
Q

Name the terminal branches of the common carotid arteries, and what they supply

A

Internal carotid artery = brain

External carotid artery = head, face, and neck

28
Q

Do the carotid arteries give off any branches within the neck

A 
External = yes, several
Internal = no
29
Q

What 3 branches of the external carotid artery are present within the anterior triangle

A
  1. Superior thyroid
  2. Lingual
  3. Facial
30
Q

What cranial nerve is the vagus nerve

A

Number 10; CN X

31
Q

What terminal nerve branches from the vagus nerve

A

The recurrent laryngeal nerve

32
Q

Describe the pathway of the recurrent laryngeal nerves

A 
Left = around the arch of the aorta
Right = around the right subclavian artery
33
Q

What type of innervation, and where do the vagus nerves innervate

A

Parasympathetic innervation; through the thoracic inlet to head to the thorax and abdomen

34
Q

What does the thyroid gland regulate

A

The body’s metabolic rate

35
Q

Describe the structure of the thyroid gland

A

Right and left lobe with an isthmus connecting the two

36
Q

What is the isthmus directly anterior to

A

The 2nd/3rd tracheal ring

37
Q

What hormones does the thyroid gland secrete

A
  1. Thyroid hormone

2. Calcitonin

38
Q

Name the two main arteries that supply the thyroid gland, and where they originate from

A
  1. Superior thyroid; external carotid artery

2. Inferior thyroid; thyrocervical trunk of the subclavian artery

39
Q

Where do both superior and both middle thyroid veins drain to

A

The internal jugular vein

40
Q

Where do the left and right inferior thyroid veins drain to

A

The left brachiocephalic vein

41
Q

What nerve innervates the submandibular salivary gland

A

The facial nerve (CN VII)

42
Q

Where is the submandibular salivary gland located

A

Inferior to the mylohyoid, within the submandibular division

43
Q

Where do the submandibular salivary ducts open into

A

Between the 1st and 2nd lower incisors, between the frenulum

44
Q

Where does the thoracic duct enter the venous system

A

The thoracic junction between the left internal jugular and left subclavian veins

Gross Anatomy 2 (28 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions