Lymphatics Of The Head And Neck Flashcards
Lymph nodes in the head and beck region can be grouped into
Superficial
Deep
Location of the superficial cervical lymph nodes
Above the investing layer of the deep fascia
The SLN of few small nodes that lie where
Superficial to the external jugular veins and anterior jugular veins
What are the superficial lymph nodes
SAM BOSS P😎
Submental
Anterior cervical
Mastoid(post-auricular/retro-auricular)
Buccal
Occipital
Submandibular
Superficial cervical
Parotid
Deep cervical lymph nodes are grouped into four namely
Upper deep cervical LN
Lower deep cervical LN
Waldyer’s ring
Nodes of midline
The upper deep cervical lymph nodes is AKA and located where
Jugular-digastric group of LN,
Upper part of the internal jugular vein, deep to the SCM
The lower deep cervical LN is AKA and located where
Jugular-omohyoid group of LN,
Lower part of the internal jugular vein, deep to the SCM
Waldyer’s ring is formed by what?
PhaTPaL
Pharyngeal tonsils
Tubal tonsils
Palatine tonsils
Lingual tonsils
What are the four midline lymph nodes
Pipp
Prelaryngeal
Infrahyoid
Pretracheal
Paratracheal
Drainage of deep cervical lymph nodes
fferents of lower deep cervicals then collect into larger lymph vessel called the “jugular lymph trunk”.
This trunk joins another two lymph trunks lymph (subclavian and brachiocephalic trunks) to form the so called the “lymph ducts” (right or left).
This “duct” finally opens into the angle between internal jugular and subclavian veins to drain its contents back to venous circulation.
Right and left lymph duct have are Raquel in size, True or false
False
The left lymph duct is called
Thoracic duct
What is the largest lymphatic duct in the body
Thoracic duct
Thoracic duct collects the lymph in the body except
Rains arm, right side of the head, neck and chest which is Collected by the right lymphatic duct
Thoracic duct begins where at why vertebra level and as what
L2
Cysterni chyli
What is cisterni chyli
Abdominal origin is thoracic duct
Thoracic duct collects tributaries from where
Mediastinal, cervical and subclavian lymph nodes
Thoracic drains where
Near the junction between the and left subclavian and the IJV vein
How many lymph nodes are present in an average human’s body
600-700
What is chylothorax?
It occurs when the thoracic duct is damaged or blocked and lymph accumulates in the pleural cavity. The lymph can compress the lungs
What is Vichow’s node
The first sign of a malignancy (especially an intra-abdominal one) may be an enlargement of the lymph node that lies in the left supraclavicular area, in the vicinity where the thoracic duct empties into the left subclavian vein (Virchow’s node).
The lymph from the scalp drains where?
MOP
MASTOID
OCCIPITAL
PAROTID lymph nodes
The lymph from the lower eyelid and anterior cheek drains where?
Buccal LNs
The lymph from the cheecks drains where?
Buccal, parotid, submandibular LNs
The lymph from the upper lips and side of the lower lips drain where?
Submandibular LNs
The lymph from the middle third of lower lips drains where?
Submental LNs
The lymph from the skin of the neck drains where?
Cervical LNs
The lymph from the Gingivae drains where?
Submandibular, Submental and upper deep cervical LNs
The lymph from the palate drains where?
Upper deep cervical LNs
Note: lymph from the palate drains via lymph vessels that pass through the pharyngeal wall to the upper deep cervical LNs
The lymph from the teeth drains where?
Submandibular and deep cervical LNs
The lymph from the anterior part of the mouth drains where?
Submental and upper deep cervical LNs
The lymph from the posterior part of the mouth drains where?
Submandibular and upper deep cervical LNs
The lymph from the tongue pierces where and drains where?
Mylohyoid muscle
Submental and submandibular
The lymph from the tip of the tongue drains where?
Submental (check diagram)
The lymph from the lateral sides of the tongue drains where?
Submandibular LNs
The lymph from the middle of posterior part of anterior 2/3 of the tongue drains where?
Deep cervical LNs
The lymph from the posterior 1/3 of the tongue drains where?
Jugulodigastric LNs
Fluid pass of of blood vessels from what side
Arterial side
The pressure on the arterial side of the blood vessel is what?
35mm
The pressure on the venous side of the blood vessel is what?
12mm
What are the pressure exerted on blood capillaries
Blood pressure (tends to force fluid through the walls of the capillaries)
> Osmotic pressure(tends draw fluids into the blood vessels)
Lymphatic system absorb fatty acids as fat as what to the circulatory system
Chyle
Circulation rate of lymph aims at why Taye
125ml/hour
Read the remaining lymphatic system from your note
Madam, go and read it now
