nmdcat.online
BIO NMDCAT Neurons
nmdcat.online July 7, 2026

The absolute refractory period of a nerve fiber serves a critical physiological function by

A. Increasing the amplitude of action potentials
B. Allowing summation of action potentials
C. Limiting the maximum frequency of nerve impulses
✓
D. Reversing the direction of impulse propagation

📝 Explanation

Because a neuron cannot fire another action potential during the absolute refractory period regardless of stimulus strength, this period sets a strict upper limit on how frequently the neuron can fire.

📖 Additional Information

  • Increasing the amplitude of action potentials
  • Allowing summation of action potentials
  • Limiting the maximum frequency of nerve impulses
  • Reversing the direction of impulse propagation

Because a neuron cannot fire another action potential during the absolute refractory period regardless of stimulus strength, this period sets a strict upper limit on how frequently the neuron can fire.

🔗 Share This Question

Facebook Twitter LinkedIn WhatsApp

🧭 Navigate Questions

Previous Question

In electrical synapses, the direct passage of ions and action potentials between adjacent cells is facilitated by

Next Question

The opening of voltage-gated potassium channels during an action potential directly results in

Back to All Questions

🔗 Related MCQs

Concerning the duration of muscle twitches, if a skeletal muscle twitch lasts approximately 10-100 milliseconds, what is the expected duration of a typical smooth muscle contraction?
July 28, 2026
The physiological response to hypoxia (low oxygen) differs among muscle types. Which muscle type is most susceptible to irreversible damage following a brief period of hypoxia?
July 28, 2026
A medical relevance of understanding muscle tissue differences is the development of calcium channel blockers. These drugs are primarily used to treat hypertension (high blood pressure) and angina. They exert their biological effect mainly by acting on:
July 28, 2026
During the process of cell differentiation, which muscle type loses its ability to divide and form new cells almost completely, relying solely on hypertrophy for growth?
July 28, 2026
The functional relationship between the shape of a muscle cell and its tissue type is evident when observing spindle-shaped cells. This specific morphology allows the cells to:
July 28, 2026

Categories

View all →