What is the function of the crossed extensor reflex?

The crossed extensor reflex is a contralateral reflex that allows the body to compensate on one side for a stimulus on the other. For example, when one foot steps on a nail, the crossed extensor reflex shifts the body’s weight onto the other foot, protecting and withdrawing the foot on the nail.

How does crossed extensor reflex maintain balance?

Crossed-Extensor Reflex. In this reflex, as withdrawal from the damaging stimulus occurs in the ipsilateral leg, extension occurs in the contralateral leg as a way of maintaining balance.

Is crossed extensor reflex normal?

The crossed extensor reflex generally is considered an abnormal reflex except in the standing position. In the normal recumbent animal, the extension response is inhibited through descending pathways. Crossed extensor reflexes result from lesions in ipsilateral descending pathways, a sign of UMN disease.

Is the crossed extensor reflex a somatic reflex?

In our discussion we will examine four major reflexes that are integrated within the spinal cord: the stretch reflex, the Golgi tendon reflex, the withdrawal reflex and the crossed extensor reflex. The effectors involved in these reflexes are located within skeletal muscle. …

What is stumble reflex?

The stumble reflex is responsible for the horizontal movement of the lead leg between back foot contact and front foot contact (FFC) and the crossed-extensor reflex is responsible for vertical force production on back foot contact.

What type of reflex is the crossed extensor reflex?

withdrawal reflex
The crossed extensor reflex is a withdrawal reflex. The reflex occurs when the flexors in the withdrawing limb contract and the extensors relax, while in the other limb, the opposite occurs.

What does crossed adductor reflex mean?

Description: There is hyperreflexia of the right knee jerk (3+) with a rightsided crossed adductor response (the crossed adductor contraction occurred because of the increased right leg tone which resulted in reflex contraction of the adductor magnus with the very slight stretch of this muscle caused by tapping the …

What is ipsilateral reflex?

a reflex in which the response occurs on the side of the body that is stimulated.

What is mass reflex?

1. an indiscriminate response of many body effectors to a single stimulus, as in “freezing” with fear. 2. a life-threatening condition associated with spinal cord injury in which uncontrolled activation of both autonomic and somatic motor systems occurs.