Functions
pump materials around body in blood
function of digestive system
breaks down food into simple compounds
absorbs nutrients
function of immune system
fight off pathogens/disease
medicines that fight bacterial infections in humans and animals
antibiotics
a state of balance needed for a living thing to survive
homeostasis
function of respiratory system
the lungs exchange CO2 and O2 with the blood
transport fresh air into body / removal of waste gases
functions of muscular system
a disease causing organism/agent
a late stage of HIV infection that occurs when your immune system is badly damaged from the virus
AIDS
The pancreas is an example of a gland. What human body system is this a part of?
endocrine system
function of skeletal system
function of nervous system
the brain sends messages around the body
reactions to stimuli
protein on the pathogen that triggers the immune response
a virus that attacks your body's immune system
HIV
hormone that lowers blood sugar
insulin
function of excretory system
gets rid of waste
hormone
attacks pathogens and produces antibodies
white blood cells
the immune system attacks a non-harmful substance
allergy
Glucagon and insulin are hormones that regulate _____________
function of nervous system
to send messages from various parts of your body to your brain, and from your brain back out to your body to tell your body
3 main structures in the excretory system
kidneys, skin and lungs
proteins made by the body to fit with an antigen and destroy the pathogen
antibody
What is the important ingredient in a vaccine that allows your body to learn how to fight the infection?
a dead or weakened pathogen
These are _______ Mechanisms in the body: they tend to stabilize a process and bring a system back to a stable state.
Example: sweating after running.
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