ATI RN
Neurological Review of Systems Questions Questions
Question 1 of 5
An axon conducts nerve impulses _________ the cell body.
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.
Question 2 of 5
Nerve impulses are carried to another part of the body by a neuron's (nerve cell):
Correct Answer: B
Rationale: The axon is the part of a neuron responsible for carrying nerve impulses away from the cell body to other neurons, muscles, or glands. It is a long, slender projection that conducts electrical signals, known as action potentials, to the axon terminals. At the terminals, the signal triggers the release of neurotransmitters into the synapse, facilitating communication with the next neuron or target cell. The axon is essential for transmitting information across the nervous system.
Question 3 of 5
Like the brain, the spinal cord is surrounded by bone, meninges, and ________.
Correct Answer: A
Rationale: The spinal cord, like the brain, is protected by bone (vertebrae), meninges, and cerebrospinal fluid (CSF). CSF provides cushioning, nutrients, and waste removal for the central nervous system. White matter and gray matter are components of the spinal cord's internal structure, while water is not a specific protective element. Therefore, cerebrospinal fluid is the correct answer.
Question 4 of 5
Which one of the following is the correct sequence of events that follows a threshold potential: 1. the membrane becomes depolarized 2. sodium channels open and sodium ions diffuse inward 3. the membrane becomes repolarized 4. potassium channels open and potassium ions diffuse outward while sodium is actively transported out of the cell
Correct Answer: B
Rationale: The correct sequence is: sodium channels open and sodium ions diffuse inward (2), the membrane becomes depolarized (1), potassium channels open and potassium ions diffuse outward while sodium is actively transported out of the cell (4), and the membrane becomes repolarized (3). Thus, B is the correct answer.
Question 5 of 5
Which of the following is a traumatic brain injury:
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.