Anterior neck Flashcards

1
Q

What makes up the cervical plexus?

A

The anterior rami of C1-C5

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2
Q

What are the sensory branches of the cervical plexus and there origin?

A

Lesser occipital nerve (C2)
Greater auricular nerve (C2 and C3)
Transverse cervical nerve (C2 and C3)
Supraclavicular nerves (C3 and C4)

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3
Q

What is the arterial supply of the anterior neck?

A
Facial artery 
occipital artery 
Posterior auricular artery 
all of the above arise from ECA
subclavian artery
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4
Q

What is the venous drainage of the anterior neck?

A

Anterior jugular veins

Tributaries of facial, occipital and post auricular

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5
Q

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

A

Lower border of the body of mandible
Midline
Anterior border of SCM

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6
Q

How many head does SCM have and what are they and where do they insert?

A

2
Sternal and clavicular
insert on mastoid proccess of temporal bone

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7
Q

What nerve innervates SCM?

A

CNXI - accessory nerves

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8
Q

Action of SCM?

A

Flex the neck anteriorly and laterally

rotate the head to opposite side

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9
Q

Name the suprahyoid muscles

A

ant and pos bellies of digastric
mylohyoid muscle
geniohyoid muscle
stylohyoid muscle

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10
Q

What supra hyoid muscles are attached to the hyoid bone?

A

mylohyoid muscle
geniohyoid muscle
stylohyoid muscle

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11
Q

How are the ant and pos bellies of digastric connectd?

A

Intermediate tendon

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12
Q

What is the role of the suprahyoid muscles?

A

Elevation of the hyoid bone during swallowing

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13
Q

What nerve innervates the ant belly of gastric muscle

A

mylohyoid nerve

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14
Q

Innervation of post belly of digastric

A

facial nerve

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15
Q

innervation of mylohyoid muscle

A

mylohyoid nerve

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16
Q

innervation of geniohyoid muscle

A

C1

17
Q

Innervation of stylohyoid muscle

A

Facial nerve

18
Q

What are the infrahyoid muslces

A

Sternohyoid
sternothyroid
thryohyoid
omohyoid

19
Q

Role of infrahyoid muscles

A

Depression of hyoid bone

20
Q

Innervation of sternohyoid

A

Ansa cervicalis

21
Q

Innervation of sternothyroid

A

Ansa cervicalis

22
Q

innervation of Thyrohyoid

A

C1 via hypoglossal

23
Q

Innervation of omohyoid

A

Ansa cervicalis