Table of Contents
What are the 5 steps of the reflex arc in correct order?
Thus the correct sequence is a sensory receptor, sensory neuron, interneuron, motor neuron and last effector.
What are the 7 main steps in a reflex arc?
Reflex arcs Receptor in the skin detects a stimulus (the change in temperature). Sensory neuron sends electrical impulses to a relay neuron, which is located in the spinal cord of the CNS. Relay neurons connect sensory neurons to motor neurons. Motor neuron sends electrical impulses to an effector.
What is the sequence of a simple reflex arc?
The correct sequence of the components in a reflex is the Receptor → Sensory neuron → Spinal cord → Motor neuron → Muscle.
What are the 5 reflex arc?
Most reflex arcs have five main components: receptors, sensory neurons, interneurons, motor neurons and muscles.
What is a reflex arc GCSE?
The nerve pathway followed by a reflex action is called a reflex arc. For example, a simple reflex arc happens if we accidentally touch something hot. Receptor in the skin detects a stimulus (the change in temperature). Sensory neurone sends impulses to relay neurone . Motor neurone sends impulses to effector.
What is the correct sequence of a reflex quizlet?
receptor, afferent neuron, control center, efferent neuron, effector.
What is the correct order for the events that occur during reflex 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 is the pathway of a reflex action?
The anatomical pathway of a reflex is called the reflex arc. It consists of an afferent (or sensory) nerve, usually one or more interneurons within the central nervous system, and an efferent (motor, secretory, or secreto-motor) nerve. Most reflexes have several synapses in the reflex arc.
Which is the correct sequence for the components of a reflex arc quizlet?
Which is the correct order of sequences during the knee-jerk reflex?
Correct answer: During the knee-jerk reflex, the neural signal is initiated by the stretching of the patella tendon, which is transmitted via sensory neuron to the spinal cord. In turn, the signal is transmitted to the motor neuron, resulting in the contraction of quadriceps.
Which of the following is the correct sequence in a typical reflex arc?
So, the correct answer is ‘Receptors – Sensory neuron – Spinal cord – Motor neuron – Muscle’
What is the reflex arc GCSE?
What are the three neurons in a reflex arc and in what order are they activated?
What are the three neurons in a reflex arc, and in what order are they activated? Afferent neuron, association neuron, and efferent neuron in that order.
What happens during knee-jerk reflex?
The sharp tap on the tendon slightly stretches the quadriceps, the complex of muscles at the front of the upper leg. In reaction these muscles contract, and the contraction tends to straighten the leg in a kicking motion.
What is a reflex action describe the steps involved in a reflex action?
A reflex action is a way for the body to automatically and rapidly respond to a stimulus to minimise any further damage to the body. It follows this general sequence and does not involve the brain: stimulus → receptor → sensory neurone → relay neurone → motor neurone → effector → response.
Which is the correct order of events in a reflex arc quizlet?
What is a reflex arc in psychology?
A reflex arc is a neural pathway that controls a reflex. In vertebrates, most sensory neurons do not pass directly into the brain, but synapse in the spinal cord. This allows for faster reflex actions to occur by activating spinal motor neurons without the delay of routing signals through the brain.
How does action potential work in reflex arc?
In a reflex arc, an action potential can bypass the brain for processing and uses dedicated neural pathways for faster processing. When a stimulus (A) is encountered, the signal from that stimulus will travel up the sensory neuron (B, in green) to the spinal column (C).
What is an example of reflex action?
The nerve pathway followed by a reflex action is called a reflex arc. For example, a simple reflex arc happens if we accidentally touch something hot. Receptor in the skin detects a stimulus (the change in temperature). Sensory neuron sends electrical impulses to a relay neuron, which is located in the spinal cord of the CNS.
What happens when a reflex arc passes through a motor neuron?
There it will likely pass through a short interneuron (D, in purple) before continuing down a motor neuron (E, in blue) to the origin of the signal. Then, a contraction of the muscles (F, in red) is triggered, moving the bone (G). A reflex arc is a neural pathway that controls a reflex.