Nokea
What is the unit of Nervous system?
- A. Brain
- B. Spinal Cord
- C. Neuron
- D. Nerves
Correct Answer: C
Rationale: Neuron is the correct answer because it is the structural and functional unit of the nervous system. Neurons are specialized cells that transmit electrical and chemical signals, enabling communication within the nervous system and between the nervous system and other parts of the body.
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Hemiplegia, hemianesthesia & hemianopia develop together with disease in the:
- A. spinal cord
- B. internal capsule
- C. thalamus
- D. brainstem
Correct Answer: B
Rationale: Internal capsule is the correct answer because it contains ascending and descending nerve fibers that transmit motor and sensory information between the brain and the spinal cord. Damage to the internal capsule can result in hemiplegia (paralysis on one side), hemianesthesia (sensory loss on one side), and hemianopia (visual field loss on one side) due to the dense concentration of these fibers in this region.
Nurse Peterson is reviewing her notes on various neurological conditions to prepare for an upcoming training session. She focuses on a chronic, degenerative, progressive disease of the central nervous system, notable for small patches of demyelination in the brain and spinal cord. Which disease is Nurse Peterson studying?
- A. Huntington's disease
- B. Parkinson's disease
- C. Creutzfeldt-Jakob's disease
- D. Multiple sclerosis
Correct Answer: D
Rationale: Multiple sclerosis is characterized by demyelination in the central nervous system, leading to a variety of neurological symptoms.
The presence of Bell's palsy suggests damage to the following cranial nerve:
- A. facial
- B. optic
- C. olfactory
- D. vestibular
Correct Answer: A
Rationale: Facial nerve is the correct answer because Bell's palsy is a condition characterized by the sudden weakness or paralysis of the facial muscles on one side of the face due to inflammation or damage to the facial nerve (cranial nerve VII). This results in symptoms such as drooping of the mouth, inability to close the eye, and loss of facial expression.
What should the nurse do when providing care for a patient with an acute attack of trigeminal neuralgia?
- A. Carry out all hygiene and oral care for the patient.
- B. Use conversation to distract the patient from pain.
- C. Maintain a quiet, comfortable, draft-free environment.
- D. Have the patient examine the mouth after each meal for residual food.
Correct Answer: C
Rationale: A calm environment minimizes triggers and helps manage pain.
In assessing Bob, which of the following complaints would indicate radial nerve injury?
- A. Pain at the fracture site
- B. Inability to extend the wrist
- C. Inability to flex the elbow
- D. Paralysis of the hand and forearm
Correct Answer: B
Rationale: The radial nerve primarily controls wrist extension; inability to extend the wrist indicates radial nerve damage.