3.02 The Spinal Cord

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Nov 24, 2024

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1. [03.02 LC] © 2014 Custom Medical Stock Photo Identify the location of the grey matter in the spinal cord slide. (3 points) Location A Location B Location C Location D 2.
[03.02 LC] © 2014 Custom Medical Stock Photo Identify the location of the dorsal root in the spinal cord slide. (3 points) Location A Location B Location C Location D
3. [03.02 MC] Due to a skiing accident, a young man suffered an injury to his spinal cord at the first thoracic vertebrate. What major functions could be lost due to his injury? (3 points) Breathing Blinking Bending Chewing 4. [03.02 MC] A fireman injures the left ventral root of his first thoracic vertebrate when he falls off a fire engine ladder. What major functions could be lost due to his injury? (3 points) Damage to the lumbar vertebrae affects walking while damage to the thoracic affects the upper trunk of the body or chest area. Movement in his upper extremities Sensation in his lower extremities Control of his trunk stability Sensation in the left section of his upper body 5. [03.02 MC] A mother places her hand on a hot stovetop. The stimulus reaches the sensory neurons of her fingertips. What nerve pathway will this stimulus signal continue to follow in order to lift her hand from the heat? (3 points) Sensory neurons receive signal that she would get hurt, interneurons carry this message to the motor neurons, and the motor neurons carry impulses to the effector and this causes her to pull her hand away. Interneuron, sensory neuron, effector Interneuron, motor neuron, effector Motor neuron, interneuron, receptor Motor neuron, sensory neuron, receptor 6.
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[03.02 HC] If the ventral root of a reflex arc controlling leg movement is severed, what part of the nerve pathway will block the nerve impulse? (3 points) Cannot send impulse to the effector muscle. Motor neuron Sensory neuron Interneuron Receptor 7. [03.02 LC] The spinal cord transfers messages from the brain to the _______________________. (3 points) frontal lobe occipital lobe spinal nerves brain nerves

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