what are the major structure of this system?
hair skin and nails
How does the immune system help you?
It help you fight viruses and bacteria
what does the nervou system do?
the body’s communication and control source
?what is the main organ(s) of the digestive system
The mouth, esophagus, and stomach.
what is the main funtioin of the integumentary system ?
to protect you skin
How do vaccines work?
creating memory cells that protect against future infections.
What are the different types of neurons?
sensory neurons motor neurons and interneruons
what does the digestive system do
break down food.
what are the three layers of the skin?
dermis epidermis, and hypodermis
What causes inflammation?
tissue damage or infection
What are the main parts?
brain and spinal cord
Where does most of the digestive process take place?
small intestine
what is the upper level of your epidermis is?
the dermis
What are the roles of different white blood cells?
Circulate in the blood and are attracted to infection sites
How do neurons communicate?
Neurons pass electrical signals called action potentials along axons, using neurotransmitters to cross the tiny synaptic gap to the next neuron.
What is the function of the large intestine?
t absorbs water from remaining indigestible food matter and compacts waste.
the deeper thicker layer of the skin is called?
epidermis
What are antigens and antibodies?
Antigens are marker molecules on pathogens that identify them as invaders. Antibodies are proteins produced by the immune system that specifically bind to antigens to flag them for destruction.
What are the divisions of the autonomic nervous system?
The sympathetic system is activated during "fight or flight" responses, while the parasympathetic system manages relaxed, "rest and digest" conditions.
Where does digestion begin?
in the mouth