Question

A) Plantar

B) Flexor
C) Crossed-extensor
D) Tendon
E) Stretch

1) Tests both upper and lower motor pathways. The sole of the foot is stimulated with a dull instrument.
2) Consists of an ipsilateral withdrawal reflex and a contralateral extensor reflex; important in maintaining balance.
3) Produces a rapid withdrawal of the body part from a painful stimulus; ipsilateral.
4) Prevents muscle overstretching and maintains muscle tone.
5) Produces muscle relaxation and lengthening in response to tension; the contracting muscle relaxes as its antagonist is activated."

Answer 1

The question involves reflex actions and their physiological significance in human neurology. It matches reflexes with their descriptions, highlighting the importance of reflexes in maintaining stability, coordinating motor responses, and protecting the body from harm.

Step-by-step explanation:

The matching of the listed options with the appropriate descriptions involves reflex actions and their physiological significance—a topic covered extensively within human biology, specifically in the domain of neurology and the nervous system functions.

1. Plantar - Tests both upper and lower motor pathways. The sole of the foot is stimulated with a dull instrument. This is the plantar reflex, commonly used to check for the Babinski sign.
2. Crossed-extensor - Consists of an ipsilateral withdrawal reflex and a contralateral extensor reflex; important in maintaining balance.
3. Flexor - Produces a rapid withdrawal of the body part from a painful stimulus; ipsilateral. This is a type of reflex action where the limbs contract to withdraw from painful stimuli.
4. Stretch - Prevents muscle overstretching and maintains muscle tone. This involves muscle spindles that detect changes in muscle length.
5. Tendon - Produces muscle relaxation and lengthening in response to tension; the contracting muscle relaxes as its antagonist is activated. Associated with the tendon reflex.