Transcript Med_Term_Chapter_14x

 Drainage
system: transports proteins and
fluids that have leaked out of the capillaries
back to the bloodstream
 Absorbs lipids (fats) from the small intestine
and transports to the bloodstream
 Defends the body against foreign
organisms…bacteria and viruses by teaming
up the lymphocytes, monocytes, lymph
nodes, spleen and thymus gland to produce
antibodies to fight on a cellular level
 Is
a clear, watery fluid that surrounds body
cells….aka interstitial fluid(which lives in the
interstitial space between cells)
 Contains two types of white
cells….lymphocytes and monocytes.
 Also contains: water, salts, sugar, urea and
creatinine
 Originates from blood
 Flows in lymph capillaries, vessels, lymph
nodes, and lymphatic organs (liver, spleen,
thymus and nodes

Lymph


No pump
Leukocytes (White Blood Cells)




Blood


Lymphocytes
Monocytes


Interstitial Fluid



Water
Less protein & other
plasma components
Lipids (from small
intestines
Pump: Heart
All blood cells


Erythrocytes
Leukocytes
Platelets
Plasma



Water
Proteins
Salts, nutrients, lipids,
and wastes
cervical lymph nodes
large veins
right lymphatic duct
lymph nodes
axillary lymph nodes
mediastinal lymph nodes
thoracic duct
lymph vessels
inguinal
lymph capillaries
 Macrophages
phagocytose foreign substances
B
lymphocytes (B cells) produce antibodies;
mature in the bone marrow
T
lymphocytes (T cells) attack bacteria and
foreign cells; originate in the thymus gland
 aka
lymphoedema
 is a condition of fluid retention caused by a
damaged lymphatic system
 in men….primary site lower limbs due to
treatment for prostate, colon or testicular
cancer if lymph nodes removed or damaged
www.lymphadvice.com/images/lymphedema.jpg
www.vodderschool.com/img/content/leg_lymphede...
allows lymphocytes to
recognize “self” antigens to
help prevent autoimmune
disease (tolerance)
develops immunity during
childhood
failure of tolerance process leads to autoimmune diseases
Chronic, disabling diseases caused by abnormal production of
antibodies against normal body tissues.
 Examples
are rheumatoid arthritis and lupus
erythematosus.
 These
are chronic, disabling diseases caused
by the abnormal production of antibodies
against normal body tissues.
 is
present at birth and is NOT dependant on
specific immune response or a previous
contact with the infectious agent
Phagocyte
neutrophil
www.mpg.de/.../2004/02/Zychlinski1/Web_Zoom.jpeg
attacks a marked
cell….the antibodies
that are formed as
part of the body’s
immune defense
marks a bacteria or
virus for destruction
www.bluebananadesigns.com/illusMacrophageMed.html
 primitive
lymphocytes that destroy tumor
cells and virally infected cells
 can
occur with an infection OR
 with a vaccination of a modified toxin
Children taking part in a malaria study in Papua New Guinea
Target:
microorganisms and
infected cells
Role: to secrete
antibodies that
attach to
microorganisms or
cells thereby
helping to destroy
them
© Armand-Frappier Museum, 2008. All rights reserved
Target: infected cell
Role: to kill infected
cells
aka….Cytotoxic T lymphocytes.
www.musee-afrappier.qc.ca/en/index.php?pageid...
dust mites
intradermal skin test
 AIDS
 Group
of clinical signs and symptoms
associated with suppression of the immune
system and marked by opportunistic
infections, secondary neoplasms, and
neurologic problems.
 Caused by HIV (destroys helper T cells)
1. Malignant tumor of the lymph nodes
and spleen marked by the presence
of Reed-Sternberg cells in lymph
nodes…
A. HIV
B. Kaposi sarcoma
C. Non-Hodgkins lymphoma
D. Hodgkin disease
Copyright © 2008, 2005 by
Saunders, an imprint of Elsevier
Inc. All rights reserved.
2. Which is the formation of
antibodies and lymphocytes
after exposure to an antigen?
A. Cell-mediated immunity
B. Acquired immunity
C. Natural immunity
Copyright © 2008, 2005 by
Saunders, an imprint of Elsevier
Inc. All rights reserved.
1.
Which lymphocyte originates in the bone
marrow and transforms into a plasma cell to
secrete antibodies?
A.
B.
C.
D.
Dendritic cell
Helper T cell
B cell
Cytotoxic T cell
3. What is a malignant condition
associated with AIDS?
A. anaphylaxis
B. non-Hodgkin lymphoma
C. Kaposi sarcoma
D. Hodgkin disease
Copyright © 2008, 2005 by
Saunders, an imprint of Elsevier
Inc. All rights reserved.
4. What is the fluid that lies
between cells throughout the
body?
A. atopy
B. lymphadema
C. interstitial
D. lymphopoiesis
Copyright © 2008, 2005 by
Saunders, an imprint of Elsevier
Inc. All rights reserved.