Lymphatic System Flashcards
what is Lymph ?
Lymph is a colourless or slight yellow fluid seen in the intercellular space or interstitial . in this RBC and Platelets are abscent.But lymph is rich in lymphocytes and monocytes the protein content of lymph is lesser than that of count.
Lymph is rich in _______ ?
Lymphocytes and Monocytes
Lymphatic System consists of _______ ?
Lymph , lymph Capillaries , Lymph Vessels , Tonsils , Thymus , Spleen , Lymph Nodes and Bone Marrow.
Largest joint ?
Knee Bone - patella
Lymph is made up of _____ ?
WBC - white blood cells
Lymph is carried by _____ ?
Lymphatic capillaries to Lymph vessels
Main / Major lymph nodes: _____ ?
1.Cervical lymph node in the Neck , 2.Armpit ( axilla ),
3.Mediastinal lymph node
4.inguinal
lymph node in the groin
5.inter mammory lymph nodes.
Lymph ?
Lymph fluid does not contain erythrocytes or platelets, but rich in two
types of WBC. Lymphocytes and Monocytes
Components of lymphatic system ?
• Lymph capillaries and vessels
• Lymph nodes
• Tonsils
• Thymus
• Spleen
• Bone marrow
Functions of Lymphatic system ?
- Protect body from illness /foreign invaders
- Maintaining body fluid level
- Absorb fat from digestive tract
- Transport and removes waste product.
Lymph Nodes seen ?
They are small bean shaped structures seen along the course of lymphatic ducts
Lymph Nodes help the body to _____?
Fight infection
Lymph node contains _______ ?
B anf T Lymphocytes
Tonsils ?
Tonsils are soft tissue masses made up of Lymphatic tissue seen in and near the throat
Examples for Tonsils ?
- Adenoids or Nasal tonsils in the Nasopharynx.
- Palatine tonsils on each side of Oropharynx
3.Laryngial tonsils in the Hypopharynx
In the tonsils Lymphatic tissue is arrange in the form of a ring is known as ________ ?
Waldeyers ring
Tonsils
1.They help to filter out germs that enters through your nose or mouth
2.protect body from infection
Spleen seen in ____ ?
It is located in the Left Upper Quadrant of the Abdomen near the Stomach.
Largest Lymphatic Organ ?
Spleen
Spleen is susceptible to ______ ?
to injury
A sharp blow to the upper abdomen (
as from impact of a car steering wheel) may cause _________ ?
Rupture of Spleen
what happen when spleen is ruptured ?
Massive hemorrhage can occur when spleen is ruptured, and
immediate removal may be necessary.
• After splenectomy the liver, bone marrow, and lymph node take over
the functions of spleen
Spleen consists of 2 types of tissues ?
- Red pulp : in which RBC are destroyed
- White pulp : which help to the production of Lymphocytes
Thymus Gland ?
it is an Endocrine gland and lymphatic organ
Thymus gland situated in ?
in the upper mediastinum above the descending aorta ,between lungs
Thymus gland secretes a hormone called _____ ?
Thymosin
Thymosin helps in the maturation of ________ ?
T - Lymphocytes
youth gland kown as ______ ?
Thymus
Thymus larger in fetus or children
and become smaller when age increases
Thymus helps body to ____ ?
to distinguish between bodies own cell and foreign antigens
There are two types of bone
marrow: _____ ?
red and yellow bone marrow
Red bone marrow contain ?
Red
bone marrow contains blood
stem cells that can become red
blood cells, white blood cells,
or platelets.
yellow bone marrow contain ?
Yellow bone
marrow is made mostly of fat
and contains stem cells that
can become cartilage, fat, or
bone cells
The B- lymphocytes produced and matured in _______ ?
in the Red bone marrow
Immunity ?
• Immunity is the capacity to resist all types of organisms and toxins (poisons) that
will damage tissues and organs
Types of immunity ?
- Natural immunity / innate immunity
- Herd immunity
- Acquired immunity / Adaptive immunity
- Acquired passive immunity
- Humoral immunity
- Cell mediated immunity
Natural immunity ?
Natural (innate) immunity is one’s own ability to fight off disease.
Immunity by birth.
Acquired immunity Or Adaptive immunity ?
Acquire immunity occurs through 2 ways .
1. Acquired Active immunity
. Acquired passive immunity
Acquired Active immunity ?
in which immunity is obtained by occurence of a disease or by vaccination
Acquired passive immunity ?
Here the ready made antibodies are given to the person
Herd immunity ?
immunity common to a community or race by occurance of disease or by vaccination
Humoral immunity ?
Immunity provided by B - lymphocytes
by producing antibodies
Cell mediated immunity ?
it is the immunity provided by T - lymphocytes
IMMUNOGLOUBLINS or Antibodies
• Also called antibodies
• They are glycoprotein molecules produced by plasma cell that act as
a critical part of immune response by specifically recognizing and
binding to particular antigen and aiding in their destruction
• IgG, IgM, IgA, IgD and IgE.
• IgA:- present in breast milk ,tears and saliva.
• IgE:-allergic conditions
immunoglobulines types ?
• IgG, IgM, IgA, IgD and IgE.
• IgA:- present in breast milk ,tears and saliva.
• IgE:-allergic conditions
