Triangles Of The Neck Flashcards

1
Q

There are how many triangles of the neck?

A

6 triangles

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2
Q

What are the six triangles of the neck?

A

Suprahyoid triangle
Submaxillary triangle
Occipital triangle
Inferior carotid triangle
Supraclavicular triangle
Superior carotid triangle

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3
Q

The quadrilateral side of the neck is bounded inferiorly by?

A

Upper border of clavicle

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4
Q

The neck quadrilateral is divided into the post and anterior main triangles by?

A

The sternocleidomastoid muscle

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5
Q

The sternocleidomastoid muscle originates from?

A

Clavicle and sternum upwards and backwards

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6
Q

The SCM muscle inserts into?

A

The mastoid process and superior nuchal line

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7
Q

Ant. Boundary of post triangle

A

The SCM muscle

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8
Q

Posterior boundary of post triangle

A

The trapezius muscle

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9
Q

Roof of post triangle is formed by?

A

Skin
Superficial fascia
Plantsma muscle

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10
Q

The floor of the post triangle is formed by ?

A

Solenoid capitis
Levator scapulae
Posterior scalene
Middle scalene
Ant scalene

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11
Q

The post triangle is divided into ?

A

Occipital triangle
And supraclavicular triangle

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12
Q

The post triangle is divided into two triangles by ?

A

by the inferior belly of the omohyoid muscle

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13
Q

The supraclavicular triangle is formed by ?

A

Inferior belly of omohyoid
Clavicle
SCM muscle

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14
Q

The occipital triangle is formed by the ?

A

Inferior belly of the omohyoid
Trapezius muscle
SCM muscle

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15
Q

Contents of the post triangle ?

A

Muscles
Nerves and plexuses
Lymph nodes
Arteriess

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16
Q

Nerves in the post triangle ?

A

Spinal Accessory nerve
Branches of cervical plexus
Roots and trunks of brachial plexus

17
Q

Boundaries of the ant triangle

A

Anterior border of the SCM. Muscle
Midline of the neck
Inferior border of the mandible

18
Q

The ant triangle has 4 triangles namely?

A

Sub mandibular triangle
Submental triangle
Carotid triangle
Muscle triangle

19
Q

The submental triangle is formed by ?

A

Hyoid bone
Anterior belly of digastric muscle
Ant midline of the neck

20
Q

The carotid triangle is formed by ?

A

Superior belly of the omohyoid muscle
SCM muscle
Post belly of the digastric muscle

21
Q

The muscular triangle is formed by ?

A

Midline of the neck
Superior belly of the omohyoid
SCM muscle

22
Q

The apex of the post triangle is formed by ?

A

Post border of SCM. Muscle and ant border of trapezius

23
Q

Where does the occipital artery emerge from ?

A

Under cover of the splenius capitis

24
Q

What are the nerves that emerge through the semispinalis capitis and supply skin of scalp?

A

Greater occipital nerve
Third occipital nerve

25
The Sunoccipital triangle is deep to?
C3 vertebrae
26
Muscles of the sub occipital triangle?
Rectus capitis posterior RCP minor Obliqus superior Obliqus inferior
27
Origin of the Obliqus inferior ?
Spine of the axis
28
Insertion of RCP major?
Below the inferior nuchal line
29
Obliqus superior originates from?
Transverse process of atlas
30
Obliqus inferior originates and inserts where ?
Spine of the axis to transverse process of atlas