GENERAL HISTOLOGY

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NERVOUS SYSTEM SPECIAL SENSE

SPINALCORD

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Given these components of a reflex:1. association neuron2. skeletal muscle3. afferent neuron4. efferent neuron5. sensory receptor Choose the sequence below that best represents the order followed in a reflex, from stimulus to response.
A
5, 4, 3, 2, 1
B
5, 3, 2, 4, 1
C
5, 4, 3, 1, 2
D
5, 3, 1, 4, 2
Explanation: 

Detailed explanation-1: -The simplest arrangement of a reflex arc consists of the receptor, an interneuron (or adjustor), and an effector; together, these units form a functional group. Sensory cells carry input from the receptor (afferent impulses) to a central interneuron, which makes contact with a motor neuron.

Detailed explanation-2: -There are different types of reflexes, including a stretch reflex, Golgi tendon reflex, crossed extensor reflex, and a withdrawal reflex.

Detailed explanation-3: -The reflex arc consists of the following parts namely-a specific receptor, an afferent nerve fiber, an association neuron, an efferent motor neuron, and an effector organ. The neurons of a specific receptor receive a stimulus and set up a sensory impulse.

Detailed explanation-4: -Sensory receptor. Sensory neuron. Integration center. Motor neuron. Effector target. 09-Dec-2021

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