Examkrackers Lecture 7: The Lymphatic System
- The Ohio State University
- Biology 509
- Examkrackers Lecture 7: The Lymphatic System
Last Modified: 2011-07-01
Related Textbooks:Microbiology: A Human Perspective w/ARIS bind in card
takes proteins and large particles that cannot be taken up by capillaries
most tissues are drained by lymphatic vessels.
interstitial fluid flows between overlapping endothelial cells.
large particles push their way into lymph.
plasma osmotic pressure
interstitial osmotic pressure
permeability of capillaries
right lympathic duct
2. buffy coat (white blood cells)
3. red blood cells
regulate osmotic pressure of blood
worn out blood cells burst as they squeeze through channels in spleen, or in liver.
protect body from foreign invaders
- enter bloodstream as reticulocytes, lose rest of their organelles within 1 or 2 days.
eosinophils- acid dyes
basophils- basic dyes
live a very short time
function nonspecifically against all inefecive agents
die once infection is gone
work against specific agents of infection
contain actin and myosin, residuals of the golgi and the ER, mitochondria, and are capable of making protoglandins and important enzymes.
2. protrombin activator catalyzes the conversion of prothrombin into thrombin.
3. thrombin is enzyme that governs polymerization of plasma protein fibrinogen to fibrin threads that attach to the platelts form a tight plug.
1. skin as a barrier to organisms and toxins
2. stomach acid and digestive enzymes to destroy ingested organisms and toxins.
3. phagocytic cells
4. chemicals in blood
acquired develops after body is first attacked.
increase permeability of capillaries
swelling of tissue cells
move toward infected or injured drawn by chemotaxis, by chemicals released from damaged tissue or by the infectious agents themselves.
mature to become macrophages
Cell Mediated (T-cell immunity)
-differentiate and mature in bone marrow and the liver.
can only stimulate an immune response if individual has been previously exposed to full antigen.
memory B cells
when antibody whose base is attached to mast cell, and binds to antigen, mast cell releases histamine and other chemicals.
Mature in thymus
have antibody like protein on surface that recognizes antigens
never make free antibodies
can attack many cells because they do not phagocytize their victims.
are responsible for fighting some forms of cancer.
2. macrophages, neutrophils engulf bacteria
3. IF fluid rushes where lymphocytes wait in nodes
4. Macrophage process and present bacterial antigens to B lymphocytes.
5. With help of helper T cells, B lymphocytes differentiate into memory and plasma
6. memory cells are for second response
7. plasma cells produce antibodies that are released into blood to attack bacteria
1st pregnancy, mother is rh negative, and has rh positive fetus.
upon exposure, mother develops an immune response against Rh positive blood.
2nd pregnancy, second that is rh positive may be attacked by antibodies of mother.
Words From Our Students
"StudyBlue is great for studying. I love the study guides, flashcards, and quizzes. So extremely helpful for all of my classes!"
Alice, Arizona State University
"I'm a student using StudyBlue, and I can 100% say that it helps me so much. Study materials for almost every subject in school are available in StudyBlue. It is so helpful for my education!"
Tim, University of Florida
"StudyBlue provides way more features than other studying apps, and thus allows me to learn very quickly! I actually feel much more comfortable taking my exams after I study with this app. It's amazing!"
Jennifer, Rutgers University
"I love flashcards but carrying around physical flashcards is cumbersome and simply outdated. StudyBlue is exactly what I was looking for!"