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How do the types of neurons found in the CNS and pns differ in their function?
Sensory (afferent) neurons conduct sensory information toward the CNS.The brain and spinal cord contain interneurons. These receive information and if they are sufficiently stimulated, they stimulate other neurons.Motor neurons (efferent neurons) send information from interneurons to muscle or gland cells (effectors).
Which part distribute motor fibres to the muscles and to convey somatosensory information to the brain?
The spinal cord is responsible for distributing motor fibers to the muscles and conveying somatosensory information to the brain. Motor neurons in the spinal cord send signals to the muscles to facilitate movement, while sensory neurons transmit sensory information from the body to the brain for processing. This dual role is essential for coordinating voluntary movements and responding to sensory stimuli.
What part of the nervous system is responsible for the reflex arc?
The peripheral nerves and the spinal cord. When a reflex starts, the peripheral nerves in the arms or legs send a signal to the spinal cord. Normally that signal is sent on to the brain for processing. In a reflex, the spinal cord itself sends a response back to the arm or leg to move immediately.
What are the afferent fibers that go to cerebellum?
2 types of afferent fibres that arise from spinal cord and brain-stem are climbing fibres and mossy fibres.climbing fibres :from contralateral inferior olivary nucleus (in medulla)make excitatory synapses directly on purkinje cellsmossy fibres :from all other structures that send fibres to cerebellum (ex. spinal cord)influence purkinje cells indirectly through excitatory synapses with granule cells
What is the path of the reflex that takes action when you step on a tack?
When you step on a tack, the sensory receptors in your foot detect pain and send signals through sensory neurons to the spinal cord. In the spinal cord, the information is processed, and a reflex arc is activated, bypassing the brain for a quicker response. Motor neurons then send signals back to the muscles in your leg to contract and lift your foot away from the tack. This reflex action occurs rapidly to minimize injury.
Which neurons transmit information to the brain and spinal cord?
Sensory neurons gather information and send it to your spinal cord.
What pick up the stimuli and send it to the brain or spinal cord?
Neurons, or nerve cells, pick up the impulses and send them to other neurons through axons and dendrites until it reaches the spinal cord.
Which neurons send messages to the spinal cord and brain?
Interneurons send messages from the spinal cord to the brain.
Does the spinal cord send messeges to the brain?
No the nerves in the spinal cord send the messages to the brain. Not the actual spinal cord.
What is the fuction of the spinal cord?
the spinal cord help send signal down or up from the brain to the limbs
What is the brain to the spinal cord?
the spinal cord is used to send messages around the body from the brain ie use left hand and arm to wave etc...
Why spinal cord runs through middle of your back bone?
In order to protect the spinal cord.
What is the name of the cord tat send messages in the brain?
SPINAL?
What the does brain stem connect the brain to?
The brain stem connects the brain to the spinal cord, so that the brain can send messages through the cord to the rest of the body. The functioning of the body is severely compromised if the spinal cord connections are severed.
White matter of the spinal cord contains?
The H-shaped grey matter of the spinal cord contains motor neurons that control movement, smaller interneurons that handle communication within and between the segments of the spinal cord, and cells that receive sensory signals and then send information up to centers in the brain.
What constitutes the central nervous system?
The CNS is the brain and the spinal cord. Has a complex network of neurons that work to send, receive, and interpret information.
Why do you need the spinal cord?
The spinal cord is a nerve cord inside the spine traveling all the way to the brain, so if you didn't have the nerve cord you're brain couldn't send/receive messages to the body
