The main organ of the respiratory system is the lungs.
Answer:
d. neck splints
Explanation:
first off neck splints are to bulky to fit in a first aid kit common sense
The cardiovascular system is made up of what two systems:
a) Circulatory system and respiratory system
<span>The peripheral nervous system
</span><span>-links the body to the brain and spinal cord.
</span>-is made up of sensory and motor neurons.<span>
</span>