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Medicine 2 Week 6 - 11 > Triangles of the Neck > Flashcards

Triangles of the Neck Flashcards

1
Q

Label

A
  1. Pre vertebral Fascia
  2. Platsyma
  3. Pre-tracheal fascia
  4. Investing Layer
  5. Sternocleidomastoid
  6. Carotid Sheath
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2
Q

Platsyma

A

Very thin layer and quite adherent to skin

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3
Q

Sternocleidomastoid and attachments

A

Origin: Sternum (Manubrium) & Clavicle

Insertion: Mastoid Process of the temporal bone

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4
Q

Innervation of Sternocleidomastoid

A

Accessory Nerve (CN XI)

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5
Q

Relationship of Sternocleidomastoid with rest of neck muscle triangles

A

Divides anterior and posterior triangles

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6
Q

Function of sternocleidomastoid

A

Flexion of cervical vertibrae, lateral flexion with rotation, extension of head at atalanto-occipital joints

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7
Q

Trapezius Muscle

A
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8
Q

Innervation of trapezius

A

Accessory Nerve (CN XI)

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9
Q

Relationship of trapezius with rest of neck muscle triangles

A

Posterior border of posterior triangle

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10
Q

Posterior triangles of the neck

A

Occipital Triangle

Omoclavicular/Subclavian Triangle

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11
Q

Anterior and posterior border of posterior triangle of the neck

A

Anterior: Sternocleidomastoid
Posterior: Trapezius Muscle

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12
Q

What divides the two posterior triangles

A

Inferior belly of the omohyoid

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13
Q

What muscles make the floor of the posterior triangle of the neck

A
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14
Q

Levator Scapulae

A

Elevates scapula

Makes the floor of the posterior triangle

**Not essential to be aware of this one tbh

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15
Q

Name the scalene muscles and palpate their locations

A
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16
Q

What forms the Superior, Lateral and Medial borders pf the Anterior Triangle of the Neck

A

Superior Border: Mandible

Lateral Border: Sternocleidomastoid

Medial Border: Midline

17
Q

What triangle of the neck does the External Jugular Vein enter

A

Posterior Triangle (Omoclavicular)

18
Q

What anatomical landmarks are structurally significant when inserting a central venous catheter in the neck/chest region?

A

Sternocleidomastoid
Sternum
Clavicle

19
Q

Anterior Triangles of the Neck

A

Submental
Submandibular
Muscular
Carotid

20
Q

What muscles make up the Carotid triangle of the neck

A

Sternocleidomastoid Muscle
Posterior Belly of Digastric Muscle
Omohyoid Superior Belly

21
Q

Components of Carotid Triangle

A

Muscles

Carotid Sheath

22
Q

Components of Carotid Triangle

A

Muscles

Carotid Sheath

23
Q

Carotid Sheath Components

A

Common Carotid Artery
Internal Jugular Vein
Vagus Nerve

24
Q

Submandibular Triangle Boundaries

A

Mandible
Anterior Belly of Digastric
Posterior Belly of Digastric

25
Q

Components of Submandibular Triangle

A 
Lymph Nodes/Salivary Gland
Submandibular Gland
Hypoglossal Nerve - Helps you move your tongue (CN XII)
Vagus Nerve
External & Internal Carotid Artery
Internal Jugular Vein (Carotid Sheath)
Muscles
26
Q

Submental Triangle Boundaries

A

Hyoid Bone

Anterior Bellies of Digastric Left and Right

27
Q

Components of Submental Triangle

A

Mylohyoid Muscle
Facial Artery/Vein
Submental Lymph Nodes
- Drains tongue/mouth

28
Q

Muscular Triangle Boundaries

A

Midline
Omohyoid Anterior Belly
Sternocleidomastoid

29
Q

Components of Muscular Triangle of the Neck

A

Infrahyoid Muscles

30
Q

Where do the omohyoid heads originate/insert

A

Inferior belly: superior border of scapula near the suprascapular notch –> Intermediate Tendon
Superior belly: Intermediate Tendon –> Body of Hyoid

31
Q

Discuss the lymphatic drainage of the submental & submandibular triangles of the neck

A

These are our superficial nodes that drain into the deep nodes that drain into the venous system

32
Q

What muscle is superior to the neck lymphatics/Lymph nodes

A

Sternocleidomastoid

33
Q

Discuss lymphatic drainage into venous system

A

Both legs, abdomen and left arm are drained through thoracic duct which enters venous system between the L subclavian & L internal jugular veins

Right arm, right thorax and right head drain into same location on the right

34
Q

Pancoast Tumour

A

Tumours that start in apex of lung

Usually spreads into/compresses one or more structures of upper thorax/neck

**RIGHT SIDE OF PICTURE

35
Q

Where might a pancoast tumour spread

A
  • the upper ribs in the thorax
  • nerves in the upper thorax and neck
  • bundles of nerves close to the spinal cord
  • blood vessels that supply blood to the upper limb

Medicine 2 Week 6 - 11 (54 decks)

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