Lymph is a pale fluid derived from interstitial fluid that contains white blood cells. It is collected through lymph capillaries and transported unidirectionally through afferent lymphatic vessels. Lymph originates from interstitial fluid and is produced as fluid efflux across capillary walls exceeds influx. It circulates through lymph capillaries, vessels, trunks and ducts via valve-guided one-way flow without a central pump. Lymph functions include supporting tissue fluid levels, transporting nutrients and filtering bacteria which are destroyed in lymph nodes. Diseases associated with lymph include lymphangitis, filariasis, lymphedema, lymphadenopathy, lymphomas and lymphadenitis.

1. HUMAN PHYSIOLOGY
TOPIC: LYMPH
MOHD:FAIJANUR-ROB-SIDDIQUEE
ROLL:SH-21

2. CONTENT
WHAT IS LYMPH
LYMPH ORIGIN AND PRODUCTION
LYMPH CIRCULATION
LYMPH FUNCTION AND CORRELATION WITH
OTHER ORGANELLES.
LYMPH DISEASES

3. WHAT IS LYMPH
Lymph pale fluid is derived from the interstitial fluid( lies
in the interstices of all body tissues) is collected through
lymph capillaries contains more wbc then plasma enter
through afferent lymphatic vessels in one direction.
The word lymph is derived from the latin name
”lympha”(means clear fluid)
It contains also clotting factors and clots on standing in
vitro
Three kinds of lymph ,1)peripheral,2)transport,3)central

4. LYMPH ORIGIN

5. Lymph origin and production

6. Lymph origin and production

7. LYMPH PRODUCTION
Fluid efflux normally exceeds influx across the
capillary walls ,but the extra fluid enters the lymph
and drain through them back into the blood. This
keeps the interstitial fluid pressure from rising and
promotes the turnover of tissue fluid the normal 24
hours lymph flow is 2-4L

8. LYMPH PRODUCTION

9. Lymph circulation
Lymph carry with lymph
capillaries in one
direction.Lymph
capillaries carry the
lymph to lymphatic
vessels,which is one blind
ended vessels and
permeable to proteins
even cells.

10. LYMPH CIRCULATION
Lymph circulation includes :
1. lymph
2. Lymphatic capillaries
3. Lymphatic collecting vessels
4. Lymphatic trunks and ducts
Presence no central pump.
Presence valve for one way
directed flow of lymph.

11. LYMPH CIRCULATION

12. Lymph functions
Support of constant level of volume and
components of tissue fluid.
Transport of nutritive substances from
digestive tracts on venous system.
Barrier-filter function.
It pick up bacteria and bring them to lymph
nodes ,lymph nodes destroy them.

13. Lymph function
Metastatic cancer cells can be transported
via lymph
It transports fat,lipid from the digestive
system(beginning in the lacteals) to the blood
via chylomicrons
Take place in immunology reaction

14. Lymph function
Plasma cells produce antibodies to
antigens in the lymph.
Antibodies,lymphocytes and monocytes
are eventually returned to the blood via
subclavian veins.

15. DiseasesThere are some diseases which are occurring for
lymph,lymph nodes,lymph vessels dysfunction or
inflammation.
1. LYMPHANGITIS
2. FILARIASIS
3. LYMPHEDEMA
4. LYMPHADENOPATHY
5. LYMPHOMAS
6. LYMPHADENITIS

16. Inflammation of the
lymph vessels.
Commonest cause
bacteria called
streptococcus
pyogenes.
Lymph vessels appear
as red streaks through
the skin.
LYMPHANGITIS

17. FILARIASIS

18. LYMPHEDEMA
Occurs due to
accumulation of
lymphatic fluid in the
inerstitial tissue.
Sometimes canbe
appreciated after
wearing tight clothing
or jewellery on affected
limb

19. LYMPHANODENOPATHY
Means a disease
of the lymph
nodes.
Lymph nodes
become swollen
/enlarged and
may be painful to
touch

20. LYMPHOMAS
Cancers originating
either from the
lymphocytes in the
lymph nodes or the
lymphatic tissue in
organs
Risk factors-
HIV,Hepatitis,EBV
infections

21. LYMPHADENITIS
Inflammation of
lymph nodes,
cause by
virus,bacteria,fung
i.

22. THANK YOU TO ALL