The model shows the pathway through the body as it reacts to pain from touching a hot cooking pot.
In the reaction shown, which TWO choices describe and explain the body systems involved and how the systems interact?
A
Description: The muscular and nervous systems are involved in this reaction.
Explanation: The motor neurons send impulses to the muscles, which causes the muscles to contract and the person to jerk their hand away from the hot pot.
B
Description: The circulatory and muscular systems are involved in this reaction.
Explanation: The heart sends blood with energy to the muscles, which causes the muscles to contract and the person to jerk their hand away from the hot pot.
C
Description: The immune system is involved in this reaction.
Explanation: The white blood cells quickly travel to the heat on the skin to protect the skin from burning.
D
Description: The nervous system is involved in this reaction.
Explanation: The sensory neurons feel the heat from the pot and send the impulse to the spinal cord.
E
Description: The circulatory system is involved in this reaction.
Explanation: The blood from the fingertips carries the heat from the hot pot to the heart.
F
Description: The respiratory system is involved in this reaction.
Explanation: The lungs take in a big breath when the person feels the pain of the hot pot.
A and D are the correct choices that describe and explain the body systems involved and how they interact.
Explanation for A: The muscular system is involved because it is responsible for the contraction of the muscles when the person jerks their hand away from the hot pot. The nervous system is involved because sensory neurons detect the heat from the pot and send the impulse to the spinal cord, which then relays the information to the brain.
Explanation for D: The nervous system is primarily involved in this reaction as it is responsible for detecting the heat and transmitting the impulse to the brain for a response. The sensory neurons detect the heat from the pot and send the impulse to the spinal cord, which then relays the information to the brain.