Where are the sensory receptors of the withdrawal reflex located?

16 Cards in this Set

routes followed by nerve impulses as they pass through nervous system nerve pathways
sensory receptors of withdrawal reflex are located in the skin
muscles in limbs are effectors of a withdrawal reflex flexor
normal plantar reflex results in — of toes flexion

Are reflexes unconscious?

Reflexes are unconscious responses, which means they are automatic and do not require the brain to create the action.

What is the effector muscle and location of the sensory stretch receptors of the patellar reflex?

20 Cards in this Set

a withdrawal reflex employs … motor neurons in conjunction with sensory and motor neurons
is the effector muscle of the patellar reflex the quad
are located in the skeletal muscle the sensory stretch receptors (muscle spindles) of the patellar reflex arc

What is a reflex in the nervous system?

Nervous system – Reflexes A reflex action often involves a very simple nervous pathway called a reflex arc. A reflex arc starts off with receptors being excited. They then send signals along a sensory neuron to your spinal cord, where the signals are passed on to a motor neuron.

What are the 5 elements of the reflex arc?

The reflex arc consists of 5 components:

  • sensory receptor.
  • sensory neuron.
  • integration center.
  • motor neuron.
  • effector target.

Which reflex occurs in response to excessive tension on a tendon?

The Golgi tendon reflex, which is a reflex to extensive tension on a tendon; it functions to protect musculoskeletal integrity. The sensory receptors for this reflex are anatomically located deep in the tendon, while the sensory receptors for the MSR are inside the muscle.

What are 3 reflexes in humans?

Types of human reflexes

  • Biceps reflex (C5, C6)
  • Brachioradialis reflex (C5, C6, C7)
  • Extensor digitorum reflex (C6, C7)
  • Triceps reflex (C6, C7, C8)
  • Patellar reflex or knee-jerk reflex (L2, L3, L4)
  • Ankle jerk reflex (Achilles reflex) (S1, S2)

What are the 4 types of reflexes?

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.

Which muscles are the effectors in a patellar reflex?

Tapping the patellar tendon stretches the quadriceps muscle and causes the sensory receptor of the muscle, called a spindle fiber, to send a signal along the afferent neuron to the spinal cord. This causes the efferent neuron to return a signal to the quadriceps muscle to contract and lift the lower leg.

What is the Golgi tendon organ reflex?

The Golgi tendon reflex (also called inverse stretch reflex, autogenic inhibition, tendon reflex) is an inhibitory effect on the muscle resulting from the muscle tension stimulating Golgi tendon organs (GTO) of the muscle, and hence it is self-induced.

Does reflex arc involve brain?

The path taken by the nerve impulses in a reflex is called a reflex arc. In higher animals, most sensory neurons do not pass directly into the brain, but synapse in the spinal cord. Reflexes do not require involvement of the brain, although in some cases the brain can prevent reflex action.

What is the first structure of a reflex arc?

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.

What are the different types of conscious responses to stimuli?

Conscious responses to stimuli occur when a person is awake and aware that s/he is responding. They are making a conscious decision to respond, hence the name. There are many different types of conscious responses to stimuli. One is episodic memory recall, which involves remembering that you experienced something.

Which is an example of an unconscious response?

People don’t think about or plan unconscious responses the way they do conscious responses. One example of an unconscious response to stimuli is priming, which occurs when the exposure to one stimulus impacts the way a person reacts to a different stimulus. To understand priming, let’s take an example from Samir’s life.

How does the human body respond to stimuli?

Everyone takes in information through their five senses and responds to it. For example, when Samir reacted to the heat of the stove, it had to do with his sense of touch. As Samir’s experience suggests, we don’t always have to be aware of the stimulus to which we’re responding.

Do you have to be aware of stimuli to respond?

As Samir’s experience suggests, we don’t always have to be aware of the stimulus to which we’re responding. To help Samir understand better, let’s look at the two main types of responses to stimuli: conscious and unconscious. To unlock this lesson you must be a Study.com Member.