Question 1

The body of the neuron is known as the:

Accepted Answer

The body of a neuron is called the soma. The axon is the long, slender projection from the neuron that transmits the signal to other neurons or cells. The dendrites are the branched projections that receive signals from other neurons. Myelin is a fatty substance that covers the axon and helps to speed up signal transmission. The body of the neuron is known as the soma, or cell body. The axon is a long, single extension that carries the nerve impulse away from the soma, while dendrites are branch-like extensions that receive signals from other neurons. Myelin is a fatty substance that covers and insulates some axons, but it is not part of the neuron's body.

Question 2

Which of the following amino acid-derived neurotransmitters is linked to the etiology of ALS?

Accepted Answer

Glutamate is the amino acid-derived neurotransmitter that is linked to the etiology of ALS. Excessive glutamate can cause excitotoxicity, which can damage neurons and contribute to the development of ALS. Glutamate is a major excitatory neurotransmitter in the central nervous system, but excessive levels of glutamate can cause excitotoxicity and contribute to the development of neurodegenerative diseases, including ALS.

Question 3

All of the following individuals are at high risk for having a stroke except:

Accepted Answer

Elevated high-density lipoproteins (HDL) are actually protective against stroke, while the other three risk factors (smoking, elevated LDL, and high blood pressure) increase the risk of stroke. Elevated high-density lipoproteins (HDL) are actually protective against stroke, as they help to remove cholesterol from arteries and keep them from becoming blocked. Smoking, elevated LDL levels, and high blood pressure are all known risk factors for stroke.

Question 4

ALS, also known as Lou Gehrig's disease, is a progressive neurological disease that affects the:

Accepted Answer

ALS affects the motor neurons, which are responsible for controlling voluntary muscle movements. Afferent neurons carry sensory information towards the central nervous system, while efferent neurons carry signals away from the central nervous system to control muscles and glands. Sensory neurons are responsible for detecting stimuli and sending signals to the central nervous system. ALS affects the motor neurons, which are responsible for controlling voluntary muscle movement. Afferent neurons transmit sensory information from the body to the brain, while efferent neurons transmit signals from the brain to muscles and glands. Sensory neurons are responsible for transmitting sensory information from the environment to the nervous system.

Question 5

Damage to the occipital lobe results in _____

Accepted Answer

Damage to the occipital lobe, located in the back of the brain, is responsible for visual processing. Therefore, partial or complete blindness would result from damage to this area, but not deafness or compromise of analytic capabilities or loss of short-term memory. Damage to the occipital lobe, which is located in the back of the brain, is associated with vision. Therefore, partial or complete blindness is a common result of damage to this area.

Question 6

You have a patient who has had a car accident and has damage to his temporal lobe Which of the following describes how brain functions will be compromised?

Accepted Answer

The answer of You have a patient who has had...

Question 7

GB is an acute peripheral nervous system disease characterized by:

Accepted Answer

GB is characterized by progressive paralysis, typically starting in the feet and hands and moving towards the center of the body. Memory loss, loss of taste, and seizures are not typical symptoms of GB. Guillain-Barré syndrome is characterized by progressive paralysis, starting from the feet and legs and ascending to the upper body and arms. It does not typically result in memory loss, loss of taste or sensation in the mouth, or recurrent seizures.

Question 8

You have a patient with Parkinson's disease who is being treated with L-dopa In order to promote the effectiveness of this medication, you choose which of the following nutrition therapy interventions?

Accepted Answer

A high carbohydrate and low protein diet is recommended because protein can interfere with the absorption of L-dopa, reducing its effectiveness.

Question 9

Treatment for a patient with myasthenia gravis sometimes includes:

Accepted Answer

Thymectomy, or the surgical removal of the thymus gland, is sometimes recommended for patients with myasthenia gravis. The thymus gland is often involved in the autoimmune response that leads to the development of the condition, and removing it can improve symptoms in some patients. The other choices (A, B, and C) do not have a direct or established role in the treatment of myasthenia gravis. Thymectomy, or surgical removal of the thymus gland, is a common treatment for myasthenia gravis. This is because the thymus gland is often found to be abnormal in individuals with myasthenia gravis, and removing it can improve symptoms and sometimes lead to remission. The other options listed are not typically part of the treatment plan for myasthenia gravis.

Question 10

A patient is reporting symptoms of a loss of sensation of pain, touch, and taste One possible explanation is that there has been to damage to the:

Accepted Answer

The parietal lobe is responsible for processing information related to touch, pressure, temperature, and pain. Damage to this area may result in a loss of sensation in these areas. In addition, the parietal lobe also plays a role in taste perception, so damage may also result in a loss of taste sensation. Loss of sensation of pain may also indicate damage or dysfunction in the spinal cord or peripheral nerves, which can carry messages related to pain sensation to the brain. The parietal lobe is responsible for processing sensory information such as touch, temperature, and pain sensations. Damage to this area of the brain can result in a loss of sensation of pain, touch, and taste. Damage to the limbic lobe or frontal lobe may result in other symptoms such as difficulty with emotions and decision-making, but not specifically the loss of sensation of pain, touch, and taste. The cerebellum is responsible for coordinating movements and maintaining balance, not sensory perception.

Question 11

Epilepsy is characterized by:

Accepted Answer

Epilepsy is a neurological disorder marked by recurrent seizures that can range from brief, barely perceptible episodes to long periods of vigorous shaking. Loss of memory, vision loss, and progressive paralysis are not typically associated with epilepsy. Epilepsy is a neurological disorder characterized by recurrent seizures, which can manifest as convulsions, muscle spasms, and loss of consciousness. It does not typically involve loss of memory, vision loss, or progressive paralysis.

Question 12

Parkinson's disease involves abnormalities of cells within the:

Accepted Answer

Parkinson's disease involves degeneration of dopaminergic neurons in the substantia nigra region of the brain, leading to motor symptoms such as tremors, rigidity, and bradykinesia. The other regions listed are not specifically implicated in Parkinson's disease. Parkinson's disease involves the degeneration of dopaminergic neurons within the substantia nigra region of the brain.

Question 13

MS is characterized by:

Accepted Answer

MS (Multiple Sclerosis) is a disease characterized by demyelination of cells within the central nervous system (CNS), which can lead to symptoms such as muscle weakness, difficulty with coordination and balance, and visual disturbances. It is not associated with hearing loss, inadequate secretion of acetylcholine, or loss of dopamine-producing cells in the substantia nigra. MS (Multiple Sclerosis) is a neurological disorder characterized by demyelination of cells within the Central Nervous System (CNS), which affects the neurons' ability to transmit signals effectively. It does not involve hearing loss, inadequate secretion of acetylcholine, or loss of dopamine-producing cells in the substantia nigra.

Question 14

You have a patient who has been admitted to the hospital with a stroke When you visit your patient at meal time, you notice that the small amount of food that has been eaten is pocketed on one side of your patient's mouth This is a characteristic of which common condition?

Accepted Answer

Dysphagia is a common condition in stroke patients, which can lead to difficulty swallowing and pocketing of food in the mouth. This can cause a risk for aspiration or choking, and should be carefully monitored by healthcare professionals. The other options, oxidative stress, GERD, and aspiration, are not necessarily associated with this specific symptom. Dysphagia is a common condition among stroke patients where they have difficulty swallowing, which may cause them to pocket food on one side of their mouth. Aspiration is also a concern with dysphagia, as food or liquid can enter the lungs and cause pneumonia. Oxidative stress and GERD are not related to the described characteristic.

Question 15

Parkinson's disease is characterized as a progressive loss of:

Accepted Answer

Parkinson's disease is primarily caused by the loss of dopamine-producing neurons in the substantia nigra region of the brain. This leads to symptoms such as tremors, slowed movement, rigidity, and difficulty with balance and coordination. Parkinson's disease is characterized by the degeneration of dopamine-producing neurons in the brain, leading to a decrease in dopamine levels. This reduction in dopamine is responsible for the movement-related symptoms of Parkinson's disease.

Question 16

Myasthenia gravis results in an autoimmune reaction that damages or destroys the cellular receptor for:

Accepted Answer

Myasthenia gravis is an autoimmune disease that causes muscle weakness and fatigue due to a decrease in the number of acetylcholine receptors at neuromuscular junctions. This results in impaired transmission of nerve impulses to muscles, leading to muscle weakness and fatigue. The other options (dopamine, serotonin, and nitric oxide) are not involved in this disease process. Myasthenia gravis results in an autoimmune reaction that damages or destroys the acetylcholine receptor on muscle fibers, leading to muscle weakness and fatigue. Dopamine, serotonin, and nitric oxide are not affected by myasthenia gravis.

Question 17

Children suffering from epilepsy are sometimes treated with a ketogenic diet, which provides:

Accepted Answer

The answer of Children suffering from epilepsy are sometimes treated...

Question 18

The difference between an ischemic stroke vs a hemorrhagic stroke is:

Accepted Answer

Ischemic stroke is caused by artery occlusion, which prevents blood flow to the brain. Hemorrhagic stroke, on the other hand, is caused by a ruptured artery, which results in bleeding into the brain. Ischemic stroke is caused by artery occlusion (blockage), while hemorrhagic stroke is caused by a ruptured artery.

Question 19

Nutrition therapy interventions for Parkinson's patients may include limiting overall protein intake because:

Accepted Answer

Parkinson's medications, such as levodopa, require the availability of an amino acid transporter to cross the blood-brain barrier. High levels of protein in the diet can compete with levodopa for this transporter, reducing the medication's effectiveness. Limiting overall protein intake may improve drug effectiveness.

Question 20

Phenytoin, a common drug used to treat epilepsy, interacts with which of the following nutrients?

Accepted Answer

Phenytoin has been shown to decrease serum folate levels, potentially leading to folate deficiency. This can be especially concerning for pregnant women taking the medication as folate is important for fetal development. Supplementation with folate may be necessary to prevent deficiency. Phenytoin can decrease the absorption of folate, leading to a deficiency. This deficiency can cause anemia, birth defects in pregnant women, and increased risk of cardiovascular disease. It is recommended to supplement with folic acid while taking phenytoin. There is no evidence that phenytoin interacts with vitamin B12, biotin, or thiamin.

Quiz 20: Diseases and Disorders of the Neurological System