Lymph nodes ppt

1. © TANUVAS, 2011
LYMPH NODES

2. © TANUVAS, 2011
Lymph nodes of the head
• Pterygoid lymph node
• Parotid lymph node
• Mandibular lymph node
• Suprapharyngeal lymph
node
• Periphayngeal lymph
node
• Atlantal lymph node

3. © TANUVAS, 2011
Lymph nodes of the neck and
fore limb
• Cervical lymph node
• Costocervical lymph node
• Prescapular lymph node
• Axillary lymph node
• Cubital lymph nodes
(horse)

4. © TANUVAS, 2011
Lymph nodes in the thoracic
cavity
• Intercostal lymph node
• Medastinal lymph node
– Anterior, middle,
posterior, dorsal &
ventral
• Bronchial lymph node
• Pulmonary lymph node
• Pericardial lymph node
• Diaphragmatic lymph node
• Sternal lymph node

5. © TANUVAS, 2011
Lymph nodes of abdomen,
pelvis and hind limb
I. Visceral lymph nodes
(A) gastric lymph
nodes
(B) mesenteric lymph
nodes

6. © TANUVAS, 2011
II. Parietal lymph nodes
• Precrural lymph nodes
• Sacral lymph node
• Ischiatic lymph node
• Superficial inguinal lymph
node (in the male)
• Supramammary lymph
node (in the female)
• Popliteal lymph node

7. © TANUVAS, 2011
Species differences - Horse
• Lymph nodes are more numerous, smaller and occur in groups
unlike in ox
• Mesenteric lymph nodes are situated in the great mesentery
chiefly near its root
• Cubital lymph nodes are present behind the biceps brachii on
brachial vessels and median nerve. Their efferents pass to axillary
and prescapular glands
• Deep inguinal lymph nodes are situated in the proximal part of
femoral canal between pectineus and sartorius

8. © TANUVAS, 2011
Dog
• Suprapharyngeal and internal iliac lymph nodes are comparatively
very large
• Posterior mediastinal lymph nodes are absent
• Intercostal lymph nodes are absent
• Portal lymph nodes occur in the course of portal vein
• Mesenteric lymph nodes are two elongated nodes occurring at the root
of mesentery
• Supramammary lymph node is single or sometimes two in number
related in inguinal mammary glands
• Popliteal lymph node is on gastrocnemius between biceps femoris and
semitendinosus. It is more superficial than in other animals and
hence is commonly palpable

9. © TANUVAS, 2011
Fowl
• Lymphatics consist of lymph vessels and lymph
glands. Lymph nodes are very small and are in
the form of lymph nodules, which are very
numerous in the walls of alimentary tract and a
few are found in the cervical region