After damage to the floor of the pons, what happens during a cat's REM sleep?
A) The eyes move vertically instead of horizontally.
B) Heart rate becomes steadier.
C) Breathing rate decreases.
D) The cat's muscles are not relaxed.

Question

Quizplus · Accepted Answer

Damage to the floor of the pons can prevent the inhibition of motor neurons during REM sleep, leading to the activation of the muscles and a lack of muscle relaxation. Therefore, the cat's muscles are not relaxed during REM sleep.

After Damage to the Floor of the Pons, What Happens