Nokea
Regarding anterior nerve roots
- A. They contain efferent fibres only
- B. All roots contain sympathetic fibres
- C. Anterior roots join with posterior roots 1cm distal to the intervertebral foramen
- D. There are 31 pairs of anterior nerve roots
Correct Answer: A
Rationale: Anterior nerve roots contain efferent (motor) fibers only. They join with posterior (sensory) roots to form spinal nerves, which then exit the intervertebral foramen.
You may also like to solve these questions
To which patient would you assign the nurse pulled from the PACU for the day?
- A. A 35-year-old patient with osteomyelitis who needs teaching prior to hyperbaric oxygen therapy.
- B. A 62-year-old patient with osteomalacia who is being discharged to a long-term care facility.
- C. A 68-year-old patient with osteoporosis and a new orthotic device whose knowledge of use of this device must be assessed.
- D. A 72-year-old patient with Paget's disease who has just returned from surgery for total knee replacement.
Correct Answer: D
Rationale: This patient requires immediate post-surgical care, which aligns with the skills of a nurse from the PACU.
Nurse Taylor is about to conduct an initial assessment on Mrs. Bennett, a 62-year-old woman admitted with Parkinson's Disease. As part of her preparation, Nurse Taylor reviews the etiology of Parkinson's disease, especially considering its typical onset between 50-60 years of age. What should Nurse Taylor understand as the primary cause of Parkinson's Disease?
- A. The natural death of brain cells due to aging.
- B. Genetic or hereditary factors.
- C. Exposure to injurious chemical substances.
- D. Dysfunction of dopamine-producing cells in the brain.
Correct Answer: D
Rationale: Parkinson's disease is primarily caused by the degeneration of dopamine-producing cells in the substantia nigra of the brain.
The part of the brain responsible for unconscious bodily functions is the:
- A. cerebrum.
- B. cerebellum.
- C. brain stem.
- D. cranial nerves.
Correct Answer: C
Rationale: The brain stem is responsible for regulating unconscious bodily functions, such as breathing, heart rate, and blood pressure. It includes structures like the medulla oblongata, pons, and midbrain. These areas control vital processes necessary for survival and maintain homeostasis. The brain stem also serves as a pathway for nerve signals traveling between the brain and the rest of the body, making it essential for basic life functions.
The client is having a lumbar puncture performed. The nurse would plan to place the client in which position for the procedure?
- A. Side-lying, with legs pulled up and head bent down onto the chest
- B. Side-lying, with a pillow under the hip
- C. Prone, in a slight Trendelenburg's position
- D. Prone, with a pillow under the abdomen
Correct Answer: A
Rationale: The side-lying position with legs pulled up and head bent down onto the chest is the standard position for a lumbar puncture. This position maximizes the space between the vertebrae, allowing easier access to the subarachnoid space for cerebrospinal fluid (CSF) collection. Proper positioning is critical to ensure the procedure is performed safely and effectively.
With regards to the spinal cord blood supply
- A. There are two anterior spinal arteries
- B. The anterior spinal artery arises form the vertebral artery
- C. The posterior spinal artery is singular
- D. The posterior spinal artery arises from the posterior superior cerebellar
Correct Answer: B
Rationale: The anterior spinal artery arises from the vertebral artery and supplies the anterior two-thirds of the spinal cord. The posterior spinal arteries are paired and supply the posterior third.