Lymphatics Flashcards
Where does thoracic duct start and where does it end
+ where does it course
Ductus thoracicus
near aortic hiatus from cisterna chyli - courses along right-dorsal side of thoracic aorta - then to left in cranial mediastinum
Joins with cranial vena cava or left jugular vein at cranial thoracic aperture
To what two cranial parts is the thoracic duct divided into
Truncus trachealis [truncus jugularis]
>Bilateral duct along trachea - originating from retropharyngeal lymph
nodes and conveys lymph from head and neck
Ductus lymphaticus dexter
>Dorsal to abdominal aorta - collects lymph from visceral and lumbal
trunks
What are hemal lymph nodes and where do they occur?
Resemble lymph nodes - their sinuses are filled with blood; function like spleen
>Occur under peritoneum, along vertebral column in some viscera in Ru
and Eq + su
Parotid lymphocentre: where is it? What does it drain
Near parotid gland, drains the cranial regions
What lymphonodes belong to parotid lymphocentre
- Lymphonodi parotidei superficiales
- Lymphonodi parotidei profundi (su)
Mandibular lymphocentre - where is it and what does it drain?
In caudal half of intermandibular region - drains facial regions
What lymph nodes belong to mandibular lymphocentre
- Lymphonodi mandibulares
- Lymphonodi mandibulares accessorii (su)
Retropharyngeal lymphocentre - where is it and what does it drain
In retromandibular fossa - near parotid gland - drains deep structures of the head
What lymph nodes belong to retropharyngeal lymphocentre
- Lymphonodi retropharyngei mediales (in eq ventral to guttural pouch)
- Lymphonodi retropharyngei laterales
Superficial cervical lymphocentre - where is it and what does it drain?
In front of the shoulder - drains the thoracic wall and thoracic limb
What lymph nodes belong to superficial cervical lymphocentre
- Lymphonodi cervicales superficiales (Ca, Ru, Eq)
- Lymphonodi cervicales superficiales dorsales (Fe, Su)
- Lymphonodi cervicales superficiales medii (Su)
- Lymphonodi cervicales superficiales ventrales (Fe, Su)
Deep cervical lymphocentre: where is it and what does it drain?
It’s a chain of nodes along trachea - draining deep cervical structures
What lymph nodes belong to deep cervical lymphocentre?
- Lymphonodi cervicales profundi
Axillary lymphocentre - where is it and what does it drain?
Within the axilla - on medial muscles of the shoulder - drains the lateral thoracic wall and thoracic limb
What lymph nodes belong to axillary lymphocenter
- Lymphonodi axillares proprii
- Lymphonodi axillares primae costae
- Lymphonodus axillaris accessorius (Car, Bo, Eq, Ov)
- Lymphonodi cubitales (Eq, Ov)
Dorsal thoracic lymphocentre - where is it- what does it drain?
Along dorsal aspect of thoracic aorta - drains primarily dorsal and lateral parts of the thoracic wall
What lymph nodes belong to dorsal thoracic lymphocentre
- Lymphonodi thoracici aortici (absent in ca, sometimes fe)
- Lymphonodi intercostales (inconstant,may be absent in car + su)
Ventral thoracic lymphocentre - where is it and what does it drain?
Along dorsal aspect of sternum - drains ventral and lateral thoracic wall, diaphragm and mediastinum
What lymph nodes belong to ventral thoracic lymphocentre?
Lymphonodi sternales
Mediastinal lymphocentre - where is it - what does it drain?
in mediastinum - drains thoracic wall and organs
What lymph nodes belong to mediastinal lymphocentre
- Lymphonodi mediastinales craniales
- Lymphonodi mediastinales medii (absent in car, su, sometimes eq)
- Lymphonodi mediastinales caudales (absent in car, sometimes in eq
Bronchial lymphocentre -where is it - what does it drain?
Located around the tracheal bifurcation - drains organs in the thoracic cavity
What lymph nodes belong to bronchial lymphocentre?
- Lymphonodi tracheobronchales dextri (inconstant in ru)
- Lymphonodi tracheobronchales medii (inconstant in ru)
- Lymphonodi tracheobronchales sinistri
- Lymphonodi tracheobronchales craniales (su, ru)
Lumbar lymphocentre - where is it, what does it drain?
Along abdominal aorta and caudal vena cava - drains deep layers of dorsal wall and organs of lumbar region
What lymph nodes belong to lumbar lymphocentre
- Lymphonodi lumbales aortici
- Lymphonodi renales
Celiac lymphocentre - where is it, what does it drain?
Along celiac artery and its branches - drains intrathoracically located abdominal organs and also thoracic organs (ca, su, eq)
What lymph nodes belong to celiac lymphocentre?
- Lymphonodi celiaci
- Lymphonodi lienales
- Lymphonodi gastrici
- Lymphonodi ruminales: dextri et sinistri
- Lymphonodi reticulares
- Lymphonodi omasiales
- Lymphonodi abomasiales: dorsales et ventrales
- Lymphonodi hepatici [portales]
- Lymphonodi pancreaticoduodenales
Cranial mesenteric lymphocentre - where is it - what does it drain?
Along cranial mesenteric artery and its branches - drains the organs supplied by those arteries
What lymph nodes belong to cranial mesenteric lymphocentre
- Lymphonodi mesenterici craniales (absent in car)
- Lymphonodi jejunales
- Lymphonodi cecales (bo, eq, fe, ov, cap)
- Lymphonodi colici
Caudal mesenteric lymphocentre - where is it, what does it drain?
Along caudal mesenteric artery and its branches - drains descending colon and rectum
What lymph nodes belong to caudal mesenteric lymphocentre
- Lymphonodi mesenterici caudales
Iliosacral lymphocentre - where is it and what does it drain?
At pelvic surface of sacrum and terminal segments of aorta- drains the pelvic wall, pelvic organs and distal lymph centres
What lymph nodes belong to the iliosacral lymphocentre?
- Lymphonodi iliaci mediales
- Lymphonodic sacrales (unpaired, inconstant)
- Lymphonodi iliaci laterales (absent in Car, sometimes su + ru)
- Lymphonodi hypogastrici (inconstant)
- Lymphonodi anorectales (absent in Car, sometimes su, ov - retroperitoneally
Iliofemoral / deep inguinal lymphocentre - where is it and what does it drain
Along external iliac or femoral artery - drains the thigh and receives lymph from popliteal lymph centre
What lymph nodes belong to deep inguinal lymphocentre
- Lymphonodi iliofemorales [inguinales profundi]
Superficial inguinal lymphocentre - where is it and what does it drain?
In lateral and caudal abdominal regions- drains the abdominal and ventral pelvic walls, superficial parts of thigh and external genital organs
What lymph nodes belong to superficial inguinal lymphocentre?
- Lymphonodi inguinales superficiales
1.1 In males: lymphonodi scrotales
1.2 In females: Lymphonodi mammarii
Ischial lymphocentre - where is it and what does it drain?
At lateral aspect of sacrosciatic ligament - drains regional musculature and skin
What lymph nodes belong to ischial lymphocentre?
- Lymphonodi ischiadici (absent in ca)
Popliteal lymphocentre - where is it and what does it drain?
In poples, drains the distal parts of the pelvic limb
What lymph nodes belong to the popliteal lymphocentre?
- Lymphonodi poplitei profundi (in un, may be absent in su)
- Lymphonodi poplitei superficiales (car, su)
