Fig. 22.1(TE Art) Spleen Thymus Thoracic duct Lymphatic vessels Palatine tonsil Bone marrow Lymph nodes Functions of the lymph system 1.Fluid recovery.

Fig. 22.1(TE Art)Spleen

Thymus

Thoracic duct

Lymphatic vessels

Palatine tonsil

Bone marrow

Lymph nodes

Functions of the lymph system

1. Fluid recovery2. Immunity3. Lipid absorption

Fig. 22.3(TE Art)

Tissuefluid

Endothelial cell

Anchoringfilament

Lymph

Lymphaticcapillary

Lymphatic duct

Tissue fluid

Edema

Larger lymph vessels….

1. Have valves2. Have tunica interna,

media and externa

Lymphatic trunks

Collecting ducts

Lymph node

Collecting vessel

Lymphatic capillaries

Fig. 22.6(TE Art)

L. subclavian v.

Thoracic duct

Cisterna chyli

Drainage of rightLymphatic duct

R. subclavian v.

R. lymphatic duct

Superior vena cava

Drainage of thoracicduct (left lymphatic duct)

Fig. 22.1(TE Art)Spleen

Thymus

Thoracic duct

Lymphatic vessels

Palatine tonsil

Bone marrow

Lymph nodes

Lymphatic tissues• Diffuse lymphatic tissue:

Mucosa-assoc.-lymphatic tissue(MALT)

• Lymph nodules

Lymphatic organs• Red bone marrow• Thymus• Lymph nodes• Tonsils• Spleen

Fig. 22.1(TE Art)Spleen

Thymus

Thoracic duct

Lymphatic vessels

Palatine tonsil

Bone marrow

Lymph nodes

Fig. 22.12a(TE Art)Lymphatic nodule

Capsule

Efferentlymphaticvessel

Afferentlymphaticvessel

Trabecula

Lymph node

Lymph nodes

Inguinal lymph nodes

Cervical lymph nodes

Axillary lymph nodes

Axillary nodes

metastasis

Fig. 22.1(TE Art)Spleen

Thymus

Thoracic duct

Lymphatic vessels

Palatine tonsil

Bone marrow

Lymph nodes

Fig. 22.14a(TE Art)

Pharyngealtonsil

Palate

Palatinetonsil

Lingualtonsil

Fig. 22.1(TE Art)Spleen

Thymus

Understand basic functions & location

Remember…..