Immune System
Name: ______________________ Date: ____________
Write the missing letters on the lines to finish each word.
1.
e
s
s
m
A ___ that protects the body from foreign substances and pathogenic organisms by producing
2.
e
e
c
l
T ___ with CD4 receptor that recognizes antigens on the surface of a virus-infected ___ (plural)
3.
r
c
e
l
T ___ with CD8 receptor that recognizes antigens on the surface of a virus-infected ___ and binds (plural)
4.
e
l
A lymphocyte derived from bone marrow that provides humoral immunity (plural)
5.
i
The work of providing treatment for or attending to someone or something (plural)
7.
s
A small apparently simple structure from which new tissue can develop into a complete organism (plural)
8.
s
e
An illness that harms the body
9.
e
n
An unconscious process that tries to reduce the anxiety associated with instinctive desires