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USC - BIOL 244 - BIOLOGY 244 - Study Guide

Created by: Mallory Gore Elite Notetaker

Schools > University of South Carolina > Biology > BIOL 244 > USC - BIOL 244 - BIOLOGY 244 - Study Guide

USC - BIOL 244 - BIOLOGY 244 - Study Guide

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background image BIOLOGY 244 EXAM 2 STUDY 
GUIDE 
FIGURES BELOW:
-20.5 (figure)
1. tonsils (in pharyngeal region) 2. thymus (in thorax)
3. spleen 
4. Peyer’s patches (small intestine)
5. appendix
*Peyer’s patches: aggregated lymphoid nodules in small 
intestine. 
-20.1 (figure)
-20.4 (figure)
*The vessel before lymphatic node= afferent 
*The vessel after lymphatic node= efferent 
*Cortex consists of:  -lymphoid follicle
-germinal center
-subscapular sinus  *medulla consist of:
-medullary cord
-medullary sinus 
*capsule=inside wall of lymph node
*trabeculae=further inside of the capsule 
*Hilum=outside of the efferent lymphatic vessels 
-20.6 (figure) *Red pulp contains: 
background image 1. Splenic cords  2. splenic sinusoids 
*lymphocytes proliferate in the white pulp of the spleen 
-21.1(table)  *specific: they make special antibodies specifically at 
different times 
nonspecific: kill in GENERAL  -21.2(table) 
-21.5 
*Interferon: small proteins  -21.2 (figure) 1. phagocyte adheres 
-endocytosis(ingestion)
2. phagosome formed (antigen)
3.lysosome fuses with the phagocytic vesicle, forms 
phagolysosome
4. residual body
5. indigestible- endocytosis  -21.1 (figure) *Innate defenses: non-specific  -surface barriers 
-internal defenses 
*adaptive defenses: specific, immunity 
-humoral immunity (B cell)
-cellular immunity (T cell) kill by chemicals cause no 
antibodies involved 
-21.3 (figure) *heat and redness: local hyperemia (increased blood flow 
to area)
background image *pain and swelling: leaked protein rich fluid in tissue  spaces  -21.8
-21.7
-21.14
* What is an interferon and what does it do?? They help protect cells that have not been infected yet. 
Plasma cell-comes from B cell, not new cell. 
-21.11 *Once B cells come with antigens they proliferate (to 
make clones) and that is why the majority of plasma cells 
have a 3:1 ratio. Some then become B cells. 
-If same antigen, they proliferate fast 
-21.15 *4 mechanisms 
*once antibody/antigen is made the pathogen is 
destroyed. -21.12 *The 2 nd  time the pathogen will be destroyed and  immunity is done by the memory B cell. -21.13
-21. 19
*Once T cells are activated they come in contact with  target cells and release perforin and put holes in the skin. -21.7(table, only know underline 
only)

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School: University of South Carolina
Department: Biology
Course: Human Anatomy and Physiology II
Professor: Anil Datt
Term: Winter 2016
Tags: Biology
Name: BIOLOGY 244
Description: This is a study guide with all the figures that you need to know plus some extra notes Dr.Datt made us copy down from the board. This also covers the phone figures on the cell phone wee were required to take pictures of.
Uploaded: 03/02/2018
9 Pages 51 Views 40 Unlocks
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