Table of Contents
What type of response is a reflex?
A reflex is an involuntary and nearly instantaneous movement in response to a stimulus. The reflex is an automatic response to a stimulus that does not receive or need conscious thought as it occurs through a reflex arc. Reflex arcs act on an impulse before that impulse reaches the brain.
Is a reflex automatic?
Reflexes are unconscious responses, which means they are automatic and do not require the brain to create the action. There are many different types of reflexes, but the most basic is called a simple reflex.
What is considered a reflex?
A reflex is an involuntary (say: in-VAHL-un-ter-ee), or automatic, action that your body does in response to something — without you even having to think about it. You don’t decide to kick your leg, it just kicks. There are many types of reflexes and every healthy person has them.
What is it called when your body does something automatically?
A reflex is an involuntary movement to a stimulus. It is a relatively simple (but critical) way your body relays information that never reaches conscious awareness. 1 Most of us take a lot of what the body does for us for granted, and that’s a good thing.
What is a reflex quizlet?
Reflex. a predictable involuntary response to a stimulus.
What are the reflex responses in humans?
The reflex is then an automatic response to a stimulus that does not receive or need conscious thought….Reflexes involving cranial nerves.
| Name | Sensory | Motor |
|---|---|---|
| Pupillary light reflex | II | III |
| Accommodation reflex | II | III |
| Jaw jerk reflex | V | V |
| Corneal reflex, also known as the blink reflex | V | VII |
What are autonomic responses?
The autonomic nervous system is a control system that acts largely unconsciously and regulates bodily functions, such as the heart rate, digestion, respiratory rate, pupillary response, urination, and sexual arousal. This system is the primary mechanism in control of the fight-or-flight response.
Is balance a reflex?
The brain uses signals from the organs to orchestrate a suite of balance reflexes that control our muscles, right down to our toes! Together, these reflexes underlie our ability to remain upright with stable vision in an ever-changing and ever-moving physical environment.
What is a reflex anatomy quizlet?
Reflexes are automatic, subconscious responses to stimuli that help maintain homeostasis (heart rate, blood pressure, etc.) The knee-jerk reflex (patellar tendon reflex) is an example of a monosynaptic reflex (no interneuron). 3. The withdrawal reflex involves sensory neurons, interneurons, and motor neurons. a.
Which is the correct description of a reflex?
A reflex is a rapid, involuntary response to a stimulus. A reflex arc is the pathway traveled by the nerve impulses during a reflex. Most reflexes are spinal reflexes with pathways that traverse only the spinal cord.
What is the path taken by nerve impulses in a reflex?
Reflex arc: The path taken by the nerve impulses in a reflex is called a reflex arc. This is shown here in response to a pin in the paw of an animal, but it is equally adaptable to any situation and animal (including humans).
What does it mean when your reflexes do not respond to a tap?
Reflex Test Responses Include. Continual jerks after the tap can indicate cerebellar disease. If there is no response to the knee tap, it may indicate nerve damage. One side of the body reacts slower to a reflex test – If your reflexes are slower on one side it may indicate early onset of progressive disease, or localized nerve damage.
How are peripheral reflexes different from polysynaptic reflexes?
In the case of peripheral muscle reflexes (patellar reflex, achilles reflex), brief stimulation to the muscle spindle results in the contraction of the agonist or effector muscle. By contrast, in polysynaptic reflex arcs, one or more interneurons connect afferent (sensory) and efferent (motor) signals.