16A (Life Science)

1. The immune system ​ (a)   , isolates and ​ (b)   ​ (c)   substances.

• detects
• destroys
• harmful
• helpful
• nurtures

The FIRST line of your immune system is designed to keep out any sort of disease-causing ___ .

1. The FIRST line of your immune system is designed to keep out any sort of disease-causing agent   This is called a nonspecific defense.

• skin

• red blood cells

• mucous membrane

• white blood cells

1. If pathogens make it through the skin it causes ___.

1. If pathogens make it through the skin it causes inflammation.

2. *Identify the order of what happens in inflammation.)

• the blood vessels increase in size to supply more blood to the area (to help fight infection)

• the capillaries (tiny blood vessels) allow more plasma to the area (the specific part of the blood that carries nutrients and other substances to fight infection)

• the original cut/puncture is healed

• special white blood cells (macrophages) slip through the capillaries to attack antigens of foreign substances that cause infection.

Tags

NGSS.HS-LS1-3

Your body responds to an ​ (a)   that has filled your entire body by producing a ​ (b)   .  This higher temperature works to ​ (c)   the infection.

• infection
• fever
• blister
• slow down
• speed up

The body’s final line of defense is a group of special blood cells called ___ (T and B cells).

• red blood cells

• lymphocytes

• invader cells

• 

Reorder the order of how active immunity works to attack a pathogen:

• The macrophage identifies a foreign antigen and sends T cells to them

• 1. Some T cells attack the foreign antigens

  2. Other T cells attack infected body cells

• 1. Other T cells alert B cells that foreign antigens have been found

• 1. After the pathogen is destroyed, the antibodies remain in the bloodstream to help in the case of future infections by the same type of pathogen.

Identity the process of the immune response

a

b

c

d

e

antibodies

B cells

T cells

pathogen

microphage

Besides getting sick (and producing antibodies), another way to receive an active immunity is by getting a ___