Which component of the neuron is responsible for transmitting signals to the next cell?
Axon
Dendrites
Myelin sheath
Cell body
The Correct Answer is A
A. Axon: The axon carries electrical impulses away from the neuron's cell body toward other neurons, muscles, or glands. The axon terminal releases neurotransmitters that transmit the signal across synapses.
B. Dendrites: Dendrites receive incoming signals from other neurons and convey them to the cell body, but they do not transmit signals to the next cell.
C. Myelin sheath: The myelin sheath insulates the axon and increases the speed of signal conduction but does not directly transmit the signal itself.
D. Cell body: The cell body integrates incoming signals and houses the nucleus, but it does not send signals to the next cell.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Diabetes mellitus: Diabetes mellitus primarily causes excessive urine output (polyuria) due to osmotic diuresis from high blood glucose levels. It does not typically lead to decreased urine output unless there is severe dehydration or kidney involvement.
B. Hypertension: Chronic hypertension can damage the kidneys over time, potentially reducing urine output, but in the early stages, it does not usually cause oliguria. Acute blood pressure changes may indirectly affect kidney perfusion.
C. Dehydration: Dehydration reduces the body’s fluid volume, leading to decreased kidney perfusion and a subsequent reduction in urine output. Oliguria is a common compensatory response to conserve water and maintain fluid balance.
D. Increased fluid intake: Increased fluid intake typically results in increased urine output (polyuria), not decreased output. The kidneys respond to excess fluids by excreting more urine to maintain homeostasis.
Correct Answer is A
Explanation
A. Urinary tract infection (UTI): Painful urination (dysuria) and frequent urges to urinate (urgency) are classic signs of a UTI, caused by bacterial infection of the urinary tract, commonly the bladder.
B. Kidney stones: Kidney stones typically cause severe flank pain, hematuria, and sometimes nausea, but not always urinary frequency or burning.
C. Bladder cancer: Bladder cancer may cause painless hematuria and changes in urination patterns, but dysuria and urgency are less common initial symptoms.
D. Diabetes mellitus: Diabetes can lead to increased urine output and thirst (polyuria and polydipsia), but it does not typically cause painful urination or urgency directly.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.
