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How does the cerebral cortex overrides the reflex?
The cerebral cortex can not over ride reflexes. Reflex are mediated at the level of the spinal cord.
What are descending pathways of the CNS composed of?
Descending pathways of the central nervous system are primarily composed of motor neurons that carry signals from the brain to the spinal cord and peripheral nerves. These pathways are responsible for executing voluntary movements, regulating reflexes, and coordinating motor functions throughout the body.
What conditions would diminish reflexes?
Conditions that can diminish reflexes include nerve damage, spinal cord injury, certain medications like sedatives or muscle relaxants, and conditions affecting the brain such as stroke or multiple sclerosis. Additionally, conditions that affect the sensory or motor pathways involved in reflex arcs can also lead to diminished reflexes.
No-reflex zone in your face?
The no-reflex zone in the face refers to an area where certain reflexes, such as the corneal reflex or blink reflex, are absent or reduced. This can occur due to neurological conditions affecting the facial nerve or other related pathways. It is important to consult a healthcare professional for a thorough evaluation if you suspect any abnormalities in facial reflexes.
What is the superficial cord reflex?
The superficial cord reflex, also known as the cutaneous reflex, is a protective response where a sudden, unexpected touch or pressure on the skin causes a reflexive movement away from the source. This reflex helps to protect the body from potential harm or injury.
How does the cerebral cortex overrides the reflex?
The cerebral cortex can not over ride reflexes. Reflex are mediated at the level of the spinal cord.
What are the quick protective reactions that occur within your nervous system called?
Fight or flight response.
What are descending pathways of the CNS composed of?
Descending pathways of the central nervous system are primarily composed of motor neurons that carry signals from the brain to the spinal cord and peripheral nerves. These pathways are responsible for executing voluntary movements, regulating reflexes, and coordinating motor functions throughout the body.
What conditions would diminish reflexes?
Conditions that can diminish reflexes include nerve damage, spinal cord injury, certain medications like sedatives or muscle relaxants, and conditions affecting the brain such as stroke or multiple sclerosis. Additionally, conditions that affect the sensory or motor pathways involved in reflex arcs can also lead to diminished reflexes.
What is enterogastric?
the enterogastric reflex is actaully a trio of reflexes that inhibit the vagal nuclei in the medulla, inhibit local reflexes and activate the sympathetic fibres that cause the pyloric sphincter to tighten and prevents further chyme entry into the small intestine.
What are the differences between long and short reflexes?
I believe a short reflex is when one is partially aroused, as during a bumpy car ride or Kate Winslet's nude scene in Titanic. A long reflex is when the member becomes fully hugified, as during any Paul Walker movie.
Spinal reflexes are produced in what?
Introduction. Spinal cord reflexes are simple behaviors produced by central nervous system (CNS) pathways that lie entirely within the spinal cord. The sensory afferent fibers that evoke these reflexes enter the spinal cord and activate spinal motor neurons directly or through a chain of one or more spinal interneurons
How is reflex handled in the nervous system?
I'm not positive, but I think that reflexes are controlled by the sympathetic nervous system (SNS). The sympathetic nervous system is part of the autonomic nervous system (ANS), which is part of the peripheral nervous system (PNS). The SNS is responsible for fight-or-flight responses. For example, if you see a shark coming directly at you, you decide to try to either get away from it (flight) or fight it off (fight). Reflexes are mediated by reflex arcs, which are neural pathways. Some sensory neurons pass directly to the synapse of the spinal cord, rather than the brain. This allows reflexes to occur relatively quickly.
What are the quick protective reactions that occur within your nervous system?
These are called reflexes. When the doctor taps the tendon below your knee your leg extends (lifts), this is a reflex.
What does Reflexes 2 in medical terms mean?
"Reflexes 2" or "reflexes +2" indicates normal reflexes.
What governs breathing and reflexes?
Breathing is governed by the respiratory centers in the brainstem, specifically the medulla oblongata and pons. Reflexes are controlled by neural pathways that involve the spinal cord and brainstem, allowing for rapid and involuntary responses to stimuli without conscious control.
No-reflex zone in your face?
The no-reflex zone in the face refers to an area where certain reflexes, such as the corneal reflex or blink reflex, are absent or reduced. This can occur due to neurological conditions affecting the facial nerve or other related pathways. It is important to consult a healthcare professional for a thorough evaluation if you suspect any abnormalities in facial reflexes.
