Term
| what makes up the lymphatic system? |
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Definition
| lymphatic vessels and lymphoid tissue |
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Term
| What do lymphatic vessels contain? |
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Definition
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Term
| There are 2 lymphoid things: name them! |
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Definition
| Lymphoid tissue and organs |
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Term
| What does the lymphatic system do? |
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Definition
| produce, maintain, distribute lymphocytes |
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Term
lymphatic capillaries
what are found in the digestive tract? and what do they do? |
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Definition
-small
-have thinner walls than capillaries
Lacteals are found in the digestive tract; they carry lipids (pick up absorbed fats)! |
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Term
| What do valves do in lymphatic vessels? |
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Definition
| they keep unidirectional flow (keep fluid going the same direction) |
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Term
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Definition
| organized groups of white cells |
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Term
| what evil disease uses the lymphatic system? |
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Definition
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Term
what are major lymph vessels?
HELP ON THIS ONE! |
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Definition
superficial lymphatics in subcutaneous tissue and below muscle serious membranes
&
Deep lymphatics |
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Term
Deep lymphatics
name the ducts found here:
what duct is found here? what about it is special? |
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Definition
thoracic duct & right lymphatic duct
thoracic duct -biggest of lymphatic vessels
starts at cisterna chyli and empties into L. subclavian |
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Term
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Definition
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Term
Describe the drainage of the the thoracic duct:
the right lymphatic duct: |
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Definition
Thoracic drains: clockwise from 12:00-9:00
left side of body, arm, legs, and head up to the ribcage
Right Lymphatic: Drains clockwise 9:00-12:00; Drains right side of head, arm and right half of torso (from head to ribcage) |
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Term
| If you disrupt the deep lymphatic ducts: |
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Definition
| you will cause a fluid disruption |
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Term
| What are the types of lymphocytes? |
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Definition
| T Cells, B cells, Nk cells |
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Term
T cells: name 4 types and what they do
T:CHMS
Which type does cell-mediated immunity? |
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Definition
1. Cytotoxic cells: attack foregin cells or viral damaged cells
2. Helper T Cells: enhance the immune response
3. Memory T Cells: long lasting for subsequent infections; they remember how to attack and what cells are bad. They're made when you're exposed to sickness and they remember it if you get it again (give you stronger/faster response)
4. Suppressor T Cells: coordinate immune response (suppress immune system)
The Cytotoxic Cells do cell-mediated immunity: the cell itself attack the pathogen (mature T cells-->assassinate) |
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Term
What do B cells do?
What do they make? |
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Definition
-differentiate into Plasma cells
-(Plasma cells) produce antibodies "immunoglobulins"
Memory B Cells (long lasting immunity) |
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Term
| What does antibody-mediated immunity? |
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Definition
| B cells--> differentiate into Plasma cells, make antibodies (immunoglobulins) and do Antibody-mediated immunity |
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Term
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Definition
Natural Killer Cells
Police peripheral tissues
Immunological surveillance |
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Term
Lymphopoiesis
start where?
mature where? |
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Definition
Start in bone marrow
Mature in thymus
Others: spleen?! |
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Term
| Lymphoid Tissue: whats in it? |
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Definition
| lymph nodules, lymph organs |
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Term
Lymph Nodules
-what is it?
-3 examples |
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Definition
don't have a capsule (they're just a clump of cells)
-densely packed lymphocytes
-Peyer's Patches in intestine (respond to pathogens ingested traveling along intestine)
-Tonsils in Pharynx (& oral cavity--> collection of lymphoid tissue)
-also in appendix |
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Term
| What happens to lymph nodes when you get infections, burns, etc. |
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Definition
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Term
Lymph Organs: have what?
3 examples |
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Definition
a capsule
-lymph nodes
-thymus
-spleen |
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Term
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Definition
bean shaped
-has efferent and afferent lymphatics
e.g. axillary, popliteal, inguinal, etc. |
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Term
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Definition
-behind sternum
-composed of 2 lobes
-stem cells are in the cortex
-mature cells move to cortex
T cells aren't active until released
Thymus is part of immunity and helps cells mature |
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Term
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Definition
largest lymphoid organ
-attached by gastrosplenic ligament
red puplp: concentrations of red cells (erythrocytes)
white pulp: collections of lymphocytes
-stores blood in case of emergency
-removes old blood cells, abnormal/damaged RBC's |
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