Lymphatic System Flashcards
Semi-independent parts of lymphatic system
Lymphatic vessels
Lymphoid tissues and organs
The lymphoid tissues and organs houses the;
Phagocytic cells
Lymphocytes
The 2 large ducts in the thoracic region
Right lymphatic duct
Large thoracic duct
Special structural features of the lymphatic capillaries
Tissue cell
Lymphatic capillary
Blood capillaries
Arteriole
Venule
Regional lymph nodes
Cervical nodes
Axillary nodes
Inguinal nodes
Structure of lymph node
Capsule
Cortex
Follicle
Medullary sinus
Medullary cord
Hilum
Other lymphoid organs
Tonsil
Spleen
Thymus
Peyer’s patches
Appendix
Function of lymphatic system
Maintenance of fluid balance
Lipid absorption
Defense
4 sets of lymph trunks (paired) & 1 unpaired trunk
(Paired)
* Jagular lymph trunks (right & left)
* Subclavian lymph trunks (right & left)
* Bronchomediastinal lymph trunks
* Lumbar lymph trunks (right & left)
(Unpaired)
*intestinal lymph trunk
Parts of spleen
White pulp
Red pulp
Hormones produced in thymus
Thymopoietin
Thymosin & thymulin
Thymic humoral factor
They are part of the collection of lymphoid tissue ( MALT )
Peyer’s patches
Appendix
Tonsil
Makes up the immune system
Innate defense mechanism
Adaptive defense mechanism
Most important defense system
Lymphocytes
Dendritic cells
Macrophages
Body’s first line defense
Skim
Mucous membranes
Protective secretions produced by mucous membranes
Acid mantle
Sticky mucus
Stomach mucosa
Saliva & tears
The body’s second line of defense
Cells (phagocytes & natural killer cells)
Chemicals
Lytic chemicals produced by natural killer cells
Perforin
Granzymes
2 important antimicrobial proteins
Complement
Interferon
three important aspects of adaptive defense
Antigen specific
It is systemic
It has a memory
two separate but overlapping arms of the adaptive defense system
Humoral immunity
Cellular immunity
crucial cells of the adaptive system
Lymphocytes
Antigen-presenting cells (APCs)
2 other major flavors of lymphocytes or 2 of its main types
B cells
T cells
Major types of cells in APCs
Dendritic cells
Macrophages
B lymphocytes
Lymphatic system is composed of
Lymph
Lymphatic vessels
Lymph nodes
Tonsils
Spleen
Thymus
2 categorized group of the lymphatic system
Superficial group
Deep group
Tissues that lacks blood vessels
Epidermis
Cartilage
2 system of immunity
Innate immunity
Adaptive immunity
Mechanisms invloved in innate immunity
Physical barriers
Chemical mediator
WBC
inflammatory response
2 defining characteristics of the adaptive immunity
Specificity
Memory
Groups of antigens
Foreign antigens
Self antigen
It is where large molecules originate
Internal antigens
External antigems
2 classes of MHC molecule
MHC class I molecule
MHC class Il molecule
4 polypeptide chains of antibodies
2 identical heavy chain
2 identical light chain
2 region of antibodies
Variable region
Constant region
Classification of plasma proteins
Albumin and alpha
Beta
Gamma globulin portions
5 classes of antibodies
IgG (80-85%)
IgA (15%)
IgM (5-10%)
IgE (0.002%)
IgD (0.2%)
Effects of antibodies
Direct
Indirect
2 responses of antibody production
Primary response
Secondary response
4 ways to acquire adaptive immunity
Active natural
Active artificial
Passive natural
Passive artificial
Parts of tonsils
Pharyngeal Tonsil
Palatine Tonsil
Lingual tonsil
5 cardinal signs of inflammation
Pain
Redness
Swelling
Heat
loss of function
