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There are two major differences between the dura of the brain and the dura of the cord. The dura of the brain consists of two layers; the periosteal layer is attached directly to the inner surface of the skull and the meningeal layer is deep to the periosteal layer. In places, the two layers are fused together; in other places, dural sinuses lie between the two layers. There is no epidural space associated with the brain
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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 respond to a stimulus that does not involve the brain?
It is called a reflex and does not involve the brain, but instead, the spinal cord. So, in effect, the spinal cord can also 'think' and process information, though not quite the level of complexity as the brain, especially the cerebral cortex. But, that is a good thing. If I touch a hot stove, my spinal cord will send out a signal to pull my hand off well before my 'brain' feels the heat. There is a lot of survival value to reflex arcs that are essential to survival that do not include the brain.
Do stretch reflex have interneuron?
Yes, the stretch reflex involves a simple monosynaptic pathway between sensory neurons and motor neurons without the involvement of interneurons in the spinal cord.
What is the portion of the brain that contains cerebral peduncles?
The cerebral peduncles are located in the midbrain, which is a portion of the brainstem. They are responsible for carrying nerve impulses between the cerebrum and the rest of the brain and spinal cord.
What is the location of an interneuron in a spinal reflex pathway?
Interneurons are located in the spinal cord. They act as the middlemen in transmitting signals between sensory neurons (that detect stimuli) and motor neurons (that generate a response). In a spinal reflex pathway, after receiving sensory input from a sensory neuron, the interneuron processes the information before signaling the motor neuron to carry out a response.
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.
The micturition reflex center is located in the?
sacral segments of the spinal cord
What part of the nervous system is not involved in producing reflex actions?
The cerebral cortex is not directly involved in producing reflex actions. Reflex actions are controlled at the spinal cord or lower levels of the brain without involvement of higher brain centers like the cerebral cortex.
What is the difference between a spinal reflex and a cranial reflex?
A cranial reflex is one that is controlled by one of the cranial nerves and tend to take place in the facial or head area. These can include reflexes like the constriction of the pupils in response to light, etc. A spinal reflex, on the other hand, is a reflex that involves only the spinal nerves and is not processed by the brain. An example is the patellar reflex, like when the doctor hits your knee and it reflexively moves. Hope this helps! :)
The integration centers for defecation and urination reflexes are in the?
The integration centers for the defecation reflex are in the sacral region of the spinal cord and involve the parasympathetic nervous system. The integration centers for the urination reflex are in the spinal cord and brainstem, coordinating signals between the bladder, urethra, and brain to control the process of urination.
What is the difference between a simple spinal reflex and a complex reaction?
Simple spinal reflex is when the afferent receptor synapses directly with an efferent neuron and subsequently an effector cell/tissue. This will all take place in the spinal cord. A complex reaction will involve an intermediary interneuron or even the brain for 'processing' before synapsing with an efferent neuron and target tissue.
Is the knee-jerk reflex a simple reflex stretch reflex or a spinal reflex?
The knee-jerk reflex is a type of stretch reflex, which is a type of spinal reflex. It involves the stimulation of sensory neurons in the muscle spindles of the quadriceps muscle, leading to a quick contraction of the muscle in response to a sudden stretch.
What is spinal reflex therapy?
Spinal reflex therapy is a neurological soft tissue procedure that gets powerful and reliable results. You can learn more at Spinal Reflex Institute's website.
What control reflex?
spinal cord
What liquid is the spinal cord covered in?
Cerebral spinal fluid
What type of reflex does not involve the brain?
A spinal reflex does not involve the brain. This type of reflex is controlled by the spinal cord and does not require the brain to initiate a response. Examples include the knee-jerk reflex and the withdrawal reflex.
What controls a reflex?
spinal cord
