1. Remember…..
Quiz #5 available until Monday
at 11 pm

2. Where is this?
2. What is this?
3. What type of tissue is the
nasopharynx lined with?
What type of tissue is the
oropharynx lined with?
5. Define a pneumothorax.

3. definition of the lymph system
lymph vessels
lymph nodes
lymph nodules
tonsils
spleen

4. Fig. 22.1(TE Art) Palatine tonsil Lymph nodes Spleen Thymus
Functions of the lymph system
Fluid recovery
Immunity
Lipid absorption
Thoracic duct
Bone marrow
Lymphatic
vessels

5. Edema and a typical ankle sprain
Edema = increase in interstitial fluid in an organ
Peripheral edema
Inversion of the ankle joint – ankle sprain
Anterior talofibular ligament
Calcaneofibular ligament

6. Fig. 22.3(TE Art) Lymphatic Tissue fluid capillary Lymph Anchoring
filament
Lymphatic duct
Endothelial cell
High pressure in tissues – low pressure in lymph vessel
Interstitial fluid flows into lymph capillaries
Flow: arterioles – capillaries – interstitial fluid – lymph capillaries

7. Larger lymph vessels….
Have valves
Have tunica interna,
media and externa

8. Flow of lymph – from tissues back to venous system
Collecting ducts
Lymph node
Collecting vessel
Lymphatic capillaries

9. Drainage of right
Lymphatic duct
Fig. 22.6(TE Art)
R. lymphatic duct
L. subclavian v.
R. subclavian v.
Thoracic duct
Superior vena cava
Cisterna chyli
Drainage of thoracic
duct (left lymphatic duct)
Lymph drainage from left and right sides of the body is different

10. Thoracic duct
Left subclavian vein

11. Lymph nodes
Lymphatic
vessels

12. Fig. 22.12a(TE Art) Lymph node Capsule Lymphatic nodule Afferent
vessel
Efferent
lymphatic
vessel
Trabecula

14. Cervical lymph nodes
Axillary lymph nodes
Inguinal lymph nodes

15. Lymph nodes

16. Axillary nodes
Metastasis
Lymphedema

18. Palatine tonsil Spleen Lymph nodes Thymus Thoracic duct Bone marrow
Lymphatic tissues
Diffuse lymphatic tissue
Lymph nodules
Lymphatic organs
Lymph nodes
Tonsils
Spleen
Red bone marrow
Thymus
Thoracic duct
Bone marrow
Lymphatic
vessels

19. Lymph nodule: dense mass of lymphocytes and macrophages
come and go as pathogens invade

20. Fig. 22.14a(TE Art) Pharyngeal tonsil Palate Palatine tonsil Lingual
Tonsils: lymphatic nodules covered with an epithelium
Fig a(TE Art)
Pharyngeal
tonsil
Palate
Palatine
tonsil
Lingual
tonsil

21. Spleen: largest lymphoid organ
red pulp: erythrocytes (RBC’s)
white pulp: lymphocytes and
macrophages
produce blood cells in fetus
monitor blood for antigens
RBC storage
“erythrocyte graveyard”
splenectomy

22. Remember…..
Quiz #5 available until Monday
at 11 pm