MODULE 3 : LYMPHATICS Flashcards
Materials that are carried in the lymph include what.
WATER
BLOOD CELLS
PROTEINS
Functions to transport fluid back to the blood and play an essential role in body defense and resistance to disease
LYMPHATIC SYSTEM
Harmful materials that enter the lymph vessels include.
BACTERIA
VIRUSES
CANCER CELLS
CELL DEBRIS
Components of the so called “immune system”, which are spread in most important parts of the body.
LYMPHATIC TISSUE
Characterized by few and irregularly scattered lymphocytes in a loose manner
LOOSE LYMPHATIC TISSUE
(Found in :
- LP of upper respiratory and upper alimentary tracts
- internodular and deep cortical &. Edullary sheath of spleen
- internodular regions of the tonils and Peyer’s Patches)
Characterized by lymphocytes that are abundant an closely packed together
DENSE LYMPHATIC TISSUE
(Found in :
- LP of lower respiratory and digestive tracts)
Characterized as a compact, circumscribed aggregation of lymphocytes forming follicles or nodules
NODULAR LYMPHATIC TISSUE (e.i. Appendix)
A type of Lymphatic Nodule that is widely distributed in the LP of digestive, respiratory and urinary tractsq
SOLITARY LYMPHATIC NODULES
A type of Lymphatic Nodule that is found in the walls of the ileum (called Peyer’s Patches) and in the vermiform appendix
AGGREGATES OF LYMPHATIC NODULES
Is a central pale staining part of a lymphatic nodule
GERMINAL CENTER OF FLEMING (Secondary Nodules)
Site of active production of lymphocytes
SECONDARY NODULES
Trap antigen in the presence of antibody to retain antigen-antibody complex
SECONDARY NODULE
Peripheral dark staining portion of lymphatic nodules
CORONA
Median organ situated in the superior mediastinum, anterior to the great vessels of the heart. Consists of two lobes, arising in the embryo as separate primordia on each side of the midline
THYMUS GLAND
A type of lymphatic tissue which After puberty, it undergoes a rapid progressive involution until the organ is largely replaced by adipose tissue in the adult
LYMPHATIC TISSUE
The only primary lymphatic organ. It is the first organ to become lymphoid during embryonic life
THYMUS GLAND
Thymus Gland is covered by what type of capsule
CAPSULE OF LOOSE CONNECTIVE TISSUE
Embryonic origin of thymus gland
ENDODERMAL ORIGIN
Part of the parenchyma of Thymus Gland which is the Peripheral zone of dense lymphatic tissue consisting of T lymphocytes
THYMIC CORTEX
Part of the parenchyma of thymus gland which is composed of slightly staining central zone of loose lymphatic tissue
THYMIC MEDULLA
Spherical or oval bodies composed of concentrically arranged cells of epithelial reticular cells with an acidophilic central area
THYMIC CORPUSCLES or HASSL’S BODIES
Encapsulated spheroid or kidney-shaped organs along the course of lymphatic vessels
LYMPH NODES
Part of lymph node that enter the node at its convex surface. Provided with valves that open towards the node
AFFERENT LYMPHATIC VESSELS
Part of the lymph node which leave the node at the hilus and has valves that point away from the hilus
EFFERENT VESSELS
Type of capsule surrounding lymph nodes
DCT
Trace the Lymphatic Pathway and Sinuses
Afferent lymphatic vessels enter the lymph
node subcapsular sinus cortical sinus
medullary sinus efferent lymphatic vessels
leave the lymph node
The lymphatic sinus are not merely spaces but are lined by what structures?
LITTORAL CELLS
Type of immunological defense that is the property of B lymphocytes and plasma cells
HUMORAL IMMUNE RESPONSE
A type of immunological defense that is T lymphocyte differentiation and activation lead to the development and systemic dessimination of lymphokine producing and cytolytic lymphocytes
CELLULAR IMMUNE RESPONSE
Largest lymphoid organ in the body
SPLEEN
Has no afferent lymphatic vessels and no lymph sinuses
SPLEEN
Type of capsule surrounding the spleen
FIBROMUSCULAR CAPSULE (dense connective tissue with smooth muscle)
PALS consists of what type of cells?
T LYMPHOCYTES
Site where blood–borne cells and particulate matter first contact the splenic parenchyma
TRANSITIONAL ZONE
Arteries of the spleen when it enters in the red pulp, they become what structures? Characterized by having a tall endothelium resting on a basal lamina, but lacking an elastic interna
PENICILLIARY ARTERIES (or arteries of the red pulp)
a characteristic thickening of walls of each penicillary artery when it branches upon entering the red pulp
ELLIPSOIDAL or SCHWEIGGER-SEIDEL SHEATH
A theory of capillary circulation where Capillaries open directly into the spaces among the reticular cells of the splenic cords
OPEN CIRCULATION THEORY
A theory of splenic circulation wherein Capillaries communicate directly with the lumen of the venous sinuses
CLOSED CIRCULATION THEORY
A theory of splenic circulation where both types of circulation are present at the same time
COMPRISE THEORY
Paired oval shaped bodies located in the oropharynx between the glossopalatine and pharyngopalaltine arches
PALATINE TONSILS
L.E. of palatine tonsils
SSNKE
Triggered when body tissues are injured
INFLAMMATORY RESPONSE (second line defense)
Four cardinal signs of inflammation
REDNESS
HEAT
SWELLING
PAIN
A characteristic of the immune system (third line of defense) which recognizes and acts against particular foreign substances
ANTIGEN SPECIFIC
A characteristic of the immune system (third line of defense) wherein it is not restricted to the initial infection site
SYSTEMIC
A characteristic of the immune system (third line of defense) which recognizes and mounts a stronger attack on previously encountered pathogens
MEMORY
Type of immunity which is an Antibody-mediated immunity and Cells produce chemicals for defense
HUMORAL IMMUNITY
Type of immunity which is Cell-mediated immunity and Cells target virus infected cells
CELLULAR IMMUNITY
Any substance capable of exciting the immune system and provoking an immune response
ANTIGENS
Occurs when Antibodies are obtained from someone else. An example of which is when it is Conferred naturally from a mother to her fetus
PASSIVE IMMUNITY
