You have a pair of new sneakers. As you walk along the corridor, your foot catches. Immediately, your body responds and you are

Question

2 years ago

15

able to catch yourself before falling. Which reflex was executed?.

1 answer:

VARVARA [1.3K] · Answer 1 · 2023-05-28T17:07:46+03:00

Crossed extensor reflex action prevents one from falling when your foot catches while walking.

Crossed extensor reflex:

A withdrawal reflex is the crossed extensor reflex. In the withdrawing limb, the extensors relax while the flexors contract, but in the other limb, the opposite happens.
Contralateral means that the crossed extensor reflex takes place on the side of the body that is opposite from the stimulus.
Afferent nerve fiber branches travel from the stimulated side of the body to the opposite side of the spinal cord to cause this response.
They connect with interneurons there, which then stimulate or inhibit alpha motor neurons to the muscles of the opposing leg.

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