Immune system
Name: ______________________ Date: ____________
L
N
B
K
U
Q
T
K
I
L
L
E
R
T
C
E
L
L
T
A
X
O
M
A
G
A
N
I
T
G
E
N
Y
D
E
F
E
N
S
E
F
R
P
B
R
Z
T
L
Q
P
I
F
G
D
R
S
H
Y
Q
S
R
G
V
H
B
R
P
G
Y
D
V
N
L
J
N
V
M
E
L
X
E
A
O
N
A
Y
I
Z
E
Y
I
T
F
B
P
H
A
L
O
I
E
N
G
W
C
G
M
E
M
U
R
C
B
E
S
L
E
W
D
S
R
S
X
Q
Z
N
O
C
R
D
U
I
Y
X
C
C
Q
I
M
T
A
E
W
T
T
L
X
C
I
S
S
O
D
B
B
T
P
S
D
H
D
B
T
S
O
A
W
K
Y
N
E
O
Y
E
Z
J
I
B
E
Y
I
I
L
Z
T
N
H
D
R
T
S
L
L
P
T
N
W
O
J
M
C
P
S
X
H
Z
S
P
L
E
E
N
C
F
A
I
H
N
N
U
A
A
V
E
U
Y
O
I
N
Q
H
S
D
G
Y
Y
J
E
V
S
L
N
N
F
A
F
P
I
L
X
G
X
R
I
T
J
O
M
C
V
S
T
A
D
R
S
K
Y
Q
U
E
O
Y
I
S
M
D
A
A
W
Q
I
C
J
Y
O
E
U
C
L
O
T
N
I
P
U
V
R
A
I
X
B
I
U
T
E
Q
F
P
R
K
U
J
F
F
Q
R
R
T
N
Y
O
V
Y
R
X
T
M
C
Q
M
Y
T
H
E
X
N
O
E
N
O
D
C
J
P
G
O
I
Z
M
F
O
X
J
C
G
J
W
X
A
A
Y
C
L
U
C
M
E
I
O
G
E
R
M
S
J
W
P
U
T
B
L
O
O
D
C
E
L
L
S
J
L
Y
M
P
H
N
O
D
E
- anitgen
- antibody
- barriers
- B cells
- blood cells
- bone marrow
- complex
- cytokines
- defense
- disease
- free radicals
- germs
- immunity
- infection
- innate
- killer T cell
- lymph node
- microorganisms
- organs
- phagocytes
- spleen
- thymus
- tonsil
- viruses