An axon conducts nerve impulses _________ the cell body.
- A. away from
- B. toward
- C. both toward and away from
- D. around, bypassing
Correct Answer: A
Rationale: The axon is a long, slender projection of a neuron that conducts nerve impulses away from the cell body to other neurons, muscles, or glands. When an action potential is generated in the cell body, it travels along the axon to the axon terminals, where neurotransmitters are released into the synapse. This unidirectional flow ensures that signals are transmitted efficiently and accurately to their intended targets.
You may also like to solve these questions
During the patient's process of grieving for the losses resulting from spinal cord injury, what should the nurse do?
- A. Help the patient to understand that working through the grief will be a lifelong process
- B. Assist the patient to move through all stages of the mourning process to acceptance
- C. Let the patient know that anger directed at the staff or the family is not a positive coping mechanism
- D. Facilitate the grieving process so that it is completed by the time the patient is discharged from rehabilitation
Correct Answer: A
Rationale: Grieving is a long-term process requiring ongoing support.
Which other extraarticular manifestation of RA is most likely to be seen in the patient with rheumatoid nodules?
- A. Lyme disease
- B. Felty syndrome
- C. Sjögren's
- D. Spondyloarthropathies
Correct Answer: B
Rationale: Felty syndrome involves splenomegaly and neutropenia.
During the rehabilitative phase following his cerebrovascular accident Mr. K. is taught measures to relieve or prevent constipation. Which of these statements indicates that Mr. K. needs further health teaching?
- A. I eat whole-wheat bread with my meals.
- B. I eat fruit three times a day.
- C. I don't drink fluids after 4 P.M.
- D. I don't like to take enemas.
Correct Answer: C
Rationale: Restricted fluid intake contributes to constipation.
When testing the patient's cranial nerves, the nurse should:
- A. Perform specific tests for each nerve, such as asking the patient to smile or follow an object with their eyes.
- B. Measure the patient's blood glucose levels.
- C. Inspect the patient's joints for swelling.
- D. Check the patient's peripheral pulses.
Correct Answer: A
Rationale: Testing cranial nerves involves specific assessments for each nerve, such as facial movements (cranial nerve VII) or eye movements (cranial nerves III, IV, and VI). Blood glucose levels, joint swelling, and peripheral pulses are unrelated to cranial nerve testing.
For a patient with a one-sided spinal injury, the nurse must be careful about the temperature of the bath water because the patient's temperature sensation is lost
- A. contralaterally below the injury
- B. ipsilaterally below the injury
- C. bilaterally below the injury
- D. contralaterally above the injury
Correct Answer: A
Rationale: Temperature sensation is lost contralaterally below the injury level.