Date post: | 21-Jan-2016 |
Category: |
Documents |
Upload: | thomasina-caldwell |
View: | 233 times |
Download: | 3 times |
Lymphatic System
Vessels: Connect to CV Lymphatics
Capillaries Collecting vessels Trunks
Transport fluid => lymph Organs: house immune cells
LN Spleen Thymus
Tissues Tonsils GALT MALT
Fluid Compartments
Capillary Dynamics Hydrostatic/Hydraulic Osmotic
Fluid Compartments ICF ECF
ISCF Plasma Lymph
Lymph Node: Gross Anatomy
1. Afferent Lymphatics 2. Cortex 3. Germinal Center 4. Capsule 5. Medullary cord 6. Valve 7. Efferent Lymphatics
LN Structure: CT and vessels
Capsule Subcapsular sinus Trabecula Reticular CT stroma Vessels
Types Afferent Efferent
Valves
L.N. Medullary Cells
P = Plasma cells (daughter cells of Activated B cells M = Macrophages (mature monocytes in tissues)
Thymus Embryological Development 1. Mandibular arch
2. Hyoid arch 3. Cervical sinus entry 4. 3rd pharyngeal pouch 5. 4th pharyngeal pouch 6. Foramen cecum 7. Thyroid 8. Cervical sinus 9. Thymus (3rd pouch) 10. Thymus (4th pouch)
Thymic Cell Development 1. Thymic capsule 2. Thymic nurse cells 3. CT septa and BV 4. Subcapsular epithelium
(for the blood thymus barrier) 5. Cortical Epithelial cells 6. Medullary epithelial cells 7. Dendritic cells 8. Hassall’s Corpuscle 9. Macrophages 10. Cortex 11. Medulla