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Gross anatomy module 3 > Neck region cont (nerves lymph and triangles > Flashcards

Neck region cont (nerves lymph and triangles Flashcards

1
Q

Where is the cervical plexus?

A

deep to SCM

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2
Q

What forms the cervical plexus? (remember superficial and deep branches)

A

by anterior rami of C1-4
Superficial branches: cutaneous innervation
Deep Branches: C1-C3 motor innervation, ansa cervicalis

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3
Q

Where does the lesser occipital nerve come from? what does it innervate?

A

It comes from C2 and innervates the skin of the neck and scalp behind EAR

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4
Q

The great auricular nerve comes fro C2-3 but what does it innervate?

A

skin orver parotid gland
sheath of the parotid gland
skin of the auricle

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5
Q

The suprascapular nerve innervates the skin across clavicles and shoulder to the second rib, but where does it come from?

A

From C3-C4

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6
Q

What makes up ansa cervicalis? What do they supply?

A

C1-3 combine to form the superior and inferior roots of ansa cervicalis, they supply the infrahyoid muscles

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7
Q

The hypoglossal nerve has cell bodies in the _____ the nerve exits through the ______ canal from the skull. It passes between the _____ artery and _____ vessels

A

Cell bodies in medulla
hypoglossal canal
external carodit artery and jugular vessel

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8
Q

Where does the hypoglossal nerve convey nerve fibers from that go to the hyoid muscles?

A

from C1 and C2

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9
Q

Does the hypoglossal nerve innervate the tongue?

A

yes, all parts except the palatoglossus

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10
Q

The Spinal Accessory nerve CN XI has cell bodies in the _____ horn of the upper cervical segments of the spinal cord. Rootlets ascend into the cranial cavity via the _______ magnum. The two roots unite at the _____ foramen then separate. It descends alog the _____ and picks up sensory fibers from C2 and C3. It provides motor and sensory info to the ______ and ______ muscles

A 
cell bodies in anteiror horn
rootlets ascend via foramen magnum
unite at the jugular foramen
descends along ICA
Provides motor/sensory info for sternocleidomastoid and trapezius
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11
Q

Lymphatic vessels merge as they get closer to the

A

heart

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12
Q

What do the right and thoracic lymphatic trunk/duct do?

A

Right: drains upper right quadrant
Thoracic duct: drains remander of body
BOTH enter into subclavian vein at t he junction of IJV

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13
Q

What do right and left JUGULAR trunks drain?

A

lymph from the head and neck

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14
Q

What do the right and left SUBCLAVIAN trunks drain?

A

drain lymph from upper extremities

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15
Q

What are the components of the lymphatic drainage of the head and neck?

A

Superficial nodes of head
Superficial cervical nodes along external jugular vein
Deep cervical nodes along internal jugular vein

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16
Q

What are the superficial lymph nodes around the head:

A 
occipital
mastoid
pre auricular and parotid
submandibular
submental
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17
Q

What do occipital nodes drain?

A

drain posterior scalp and neck

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18
Q

what do Mastoid nodes drain?

A

drain posterolateral half of scalp

19
Q

what do pre auricular and parotid nodes drain?

A

anteriolateral scalp, upper half of face

20
Q

what do submandibular nodes drain?

A

follows facial vein drainage, anterior face, gingiva, teeth, tongue

21
Q

what do the submental nodes drain?

A

lower lip, chin, floor of mouth, tip of tongue, and lower incisor teeth

22
Q

Where are the superficial cervical lymph nodes and where do they send their lymph vessels?

A

They are found along the external jugular vein along surface of SCM they send lymph vessels towards deep cervical nodes

23
Q

What are the deep cervical nodes? Where are they?

A

Jugulodigatric node
Jugulo-omohyoid node
they are divided into superior and inferior groups that form a chain on IJV

24
Q

Where is the Jugulodigastric node?

A

superior at level of posterior digastric

25
Q

Where is the jugulo-omohyoid node?

A

inferior to tendon of omohyoid muscle

26
Q

Where do they lymph vessels of the pharynx drain to?

A

Retropharngeal nodes
Paratracheal nodes
Infrahyoid nodes
which all drain to deep cervical nodes

27
Q

Lymph from the root of the tonge drains where?

A

superior deep cervical nodes (jugulodigastric)

28
Q

Lymph from the medial body of tongue drains where?

A

To deep cervical nodes,

juguloomohyoid

29
Q

LYmp from the right and left lateral parts of the tongue body drain where?

A

submandibular nodes

30
Q

Lymph from the tip of the tongue and frenulum drain where?

A

Submental nodes

31
Q

Where does lymph from teeth and gingiva drain?

A

Mainly to submandibular submental and deep cervical nodes

32
Q

What divides the neck into the anterior and posterior triangles?

A

the SCM

33
Q

What are the boundaries of the posterior triangle?

A

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

34
Q

What are the contents of the posterior triangle?

A 
Accessory Nerve
Cervical Plexus
Brachial Plexus
External jugular vein
Subclavian artery/vein
Suprascapular artery
Cervical lymph nodes
35
Q

What are the borders of the Anterior triangle

A

Anterior border of SCM
Inferior border of mandible
Midline of neck

36
Q

The anterior triangle is divided into four smaller triangles, what are they?

A

Muscular triangle
Carotid triangle
Submandibular triangle
Submental Triangle

37
Q

What are the boundaries of the muscular triangle?

A

Anterior border of SCM
SUPERIOR belly of omohyoid
Midline of neck (to hyoid)

38
Q

What are the contents of the muscular triangle

A

Infrahyoid muscles
thyroid gland
parathyroid gland

39
Q

What are the boundaries of the carotid triangle?

A

Anterior border of SCM
SUPERIOR border of omohyoid
Posterior Digastric

40
Q

What are the contents of the Carotid Triangle?

A 
Carotid sheath
Hypoglossal nerve
Accessary nerve
Ansa cervicalis
Deep cervical lymph nodes
41
Q

What are teh boundaries of the submandibular triangle?

A

Anterior and posterior bellies of digastric

Inferior border of the mandible

42
Q

What are the contents of the submandibular triangle?

A 
Submandibular gland
Hypoglossal Nerve
Submandibular lymph nodes
nerve to mylohyoid
Facial artery and vein
43
Q

What are the borders of the Submental triangle?

A

Right and left anterior belly of digastric

hyoid bone

44
Q

What are the contents of the submental triangle?

A

Submental lymph nodes and veins

Gross anatomy module 3 (7 decks)

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