Brainscape's Knowledge GenomeTM

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


See full index

BDS3 Head and Neck Anatomy > Lecture 2: Organisation of the Neck and Posterior Triangle > Flashcards

Lecture 2: Organisation of the Neck and Posterior Triangle Flashcards

1
Q

What is the superior boundary of the neck?

A

Base of skull
Inferior border of mandible

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

What is the inferior border of the neck?

A

Top of sternum
Clavicle
Acromion (anterior)
C7 (posterior)

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

What are the 3 neck compartments?

A

Visceral compartment
Vascular compartment
Vertebral compartment

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

What does the visceral compartment contain?

A

Parts of digestive and respiratory system
Endocrine glands

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

What does the vascular compartment contain?

A

Blood Vessels
CNX (vagus nerve)

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

What does the vertebral compartment contain?

A

Cervical vertebrae
Spinal cord
Muscles
Cervical nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the 3 functions of fascia?

A

Enclose compartments
Containment and protection
Lubrication (allow structures to slip over each other)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the superficial fascia and what does it contain?

A

Outermost fascia consisting of fatty connective tissue. Connects to mandible and facial muscles. Contains cutaneous nerves, blood vessels, lymphatics and the PLATYSMA muscle.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the deep fascia and what does it contain?

A

Consists of 3 layers - investing, pretracheal and prevertebral layers. Which gives protection and support to contents. Splits into superficial and deep layers to enclose trapezius and SCM.

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

Name 3 anatomical structures that pierce the investing layer

A

External and anterior jugular veins.
Nerves including cervical plexus.

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

What are the 4 superior attachments of the investing layer?

A

Superior nuchal line of occipital bone.
Mastoid process of temporal bone
Zygomatic arches
Inferior border of mandible

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

What are the 4 inferior attachments of the investing layer?

A

Spine of scapula
Acromion
Clavicle
Manubrium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the anterior attachment of the investing layer?

A

Hyoid bone

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

Posteriorly, the investing layer is continuous with which 2 structures?

A

Ligamentum nuchae
Periosteum of C7 spinous process.

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

What feature of the carotid sheath makes it a potential pathway for the spread of infection?

A

It runs from the foramen of the carotid canal to the aortic arch. It therefore connects the cranial cavity with the mediastinum.

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

What are the 3 boundaries of the anterior triangle?

A

Inferior border of mandible
Anterior border of SCM
Midline of neck

17
Q

What are the 3 boundaries of the posterior triangle?

A

Posterior border of SCM
Anterior border of trapezius
Middle third of clavicle

18
Q

Which 4 structures make up the roof of the posterior triangle?

A

Investing layer
Platysma
Superficial fascia
Skin

19
Q

Which structure makes up the floor of the posterior triangle

A

Prevertebral layer (containing splenius capitis, levator scapulae, anterior middle and posterior scalenes.

20
Q

What is the origin, insertion and innervation of the SCM?

A

Origin: manubrium and superior surface of middle third clavicle.
Insertion: Lateral surface mastoid process and lateral half superior nuchal line.
Innervation: Spinal Accessory nerve (CNXI)

21
Q

What is the action of the SCM

A

Contraction of SCM rotates head to ipsilateral side.
Simultaneous contraction moves head forward/elevates the chin.

22
Q

What is the origin, insertion and innervation of the trapezius muscle?

A

Origin: Superior nuchal line, EOP, ligamentum nuchae, spinous processes (C7-T12).
Insertion: Lateral third clavicle, acromion, spine of scapula.
Innervation: Spinal Accessory nerve (CNXI).

23
Q

What is the action of the trapezius muscle?

A

Upper fibres - elevation of scapula
Middle fibres - adduction of scapula
Lower fibres - depress scapula

24
Q

What are the muscular branches of the cervical plexus?

A

Ansa cervicalis (C1,2,3) - to prevertebral and vertebral muscles. Innervates infrahyoid muscles EXCEPT THYROHYOID.
Phrenic nerve (C3,4,5)

25
Q

What are the cutaneous branches of the cervical plexus?

A

C2 - lesser occipital nerve
C2,3 - great auricular and transverse cervical nerves
C3,4 - supraclavicular nerves

26
Q

Which 3 anatomical structures cross the SCM?

A

External jugular vein
Great auricular nerve
Transverse cervical nerve

27
Q

Which 6 anatomical structures cross the posterior triangle?

A

Spinal accessory nerve
External jugular vein
Lesser occipital nerve
Transverse cervical artery
Transverse cervical vein
Supraclavicular nerves

28
Q

Into which vessel does the anterior jugular vein drain?

A

External jugular vein

29
Q

Into which vessel does the external jugular vein drain?

A

The subclavian vein

BDS3 Head and Neck Anatomy (3 decks)

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