What is the order of a reflex action?

Stimulus, sensory neuron, intermediary neuron, motor neuron and defector organ is the correct order of general reflex arc.

What are the four steps of a reflex?

The reflex arc

• A receptor in the skin detects a stimulus (the change in temperature).
• Sensory neurones send electrical impulses to relay neurones, which are located in the spinal cord.
• Motor neurones send electrical impulses to an effector.
• The effector produces a response (muscle contracts to move hand away).

What is the correct order of a simple reflex?

Thus the correct sequence is a sensory receptor, sensory neuron, interneuron, motor neuron and last effector.

What is the correct order of steps in a reflex arc quizlet?

Place the following events of a reflex arc in the correct order: 1) motor neuron activation, 2) sensory neuron activation, 3) sensory receptor activation, 4) Information processing, 5) effector response.

What are the two types of reflex responses?

There are two types of reflex arcs: autonomic reflex arc (affecting inner organs) and somatic reflex arc (affecting muscles).

What is the correct order of the 3 neurons?

There are three primary types of neuron: sensory neurons, motor neurons, and interneurons.

What are the 5 steps of the reflex arc in correct order?

So the reflex arc consists of these five steps in order-sensor, sensory neuron, control center, motor neuron, and muscle. These five parts work as a relay team to take information up from the sensor to the spinal cord or brain and back down to the muscles.

What are the 5 reflex arc?

FIGURE 7-1 A reflex arc contains five fundamental components: 1, a receptor; 2, a sensory neuron; 3, one or more synapses in the CNS; 4, a motor neuron; and 5, a target organ, usually a muscle.

What are the three types of reflexes?

There are three common somatic reflexes discussed in most anatomy and physiology courses.

• Stretch (knee-jerk, patellar) reflex.
• Withdrawal (flexor) reflex.
• Crossed-extensor reflex.

What is the Order of reflexes in the brain?

Choose the sequence below that best represents the order followed in a reflex, from stimulus to response. A) are never homeostatic. B) are automatic responses to a stimulus. C) cannot be suppressed by higher brain functions. D) are always simple pathways containing three neurons.

Which is the best reflexology sequence to use?

What is the best reflexology sequence? Reflexology sequence is a specific order of reflexes to make the treatment effective. Author’s suggestion is for males preferred side to start is the right foot. Moreover, for females it is the left foot (This idea based on the Ayurveda concept).

Where do reflexes take place in the spinal cord?

A polysynaptic, contralateral reflex with sensory input and motor output at the same level of the spinal cord would need to include interneurons in what part of the spinal cord? One of the simplest reflexes is a stretch reflex. In this reflex, when a skeletal muscle is stretched, a muscle spindle in the belly of the muscle is activated.

How long does it take for the stretch reflex to occur?

It generally occurs within 1-2 milliseconds. The stretch reflex is designed as a protective measure for the muscles, to prevent tearing. The muscle spindle is stretched and the impulse is also immediately received to contract the muscle, protecting it from being pulled forcefully or beyond a normal range.