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

An excitatory postsynaptic potential (EPSP) brings the membrane potential closer to threshold by causing

A. Hyperpolarization
B. Localized depolarization
✓
C. Repolarization
D. The absolute refractory period

📝 Explanation

An EPSP involves the opening of cation channels (usually Na⁺), leading to a localized, graded depolarization that makes the postsynaptic neuron more likely to fire an action potential.

📖 Additional Information

  • Hyperpolarization
  • Localized depolarization
  • Repolarization
  • The absolute refractory period

An EPSP involves the opening of cation channels (usually Na⁺), leading to a localized, graded depolarization that makes the postsynaptic neuron more likely to fire an action potential.

🔗 Share This Question

Facebook Twitter LinkedIn WhatsApp

🧭 Navigate Questions

Previous Question

The postsynaptic membrane contains specialized proteins that function primarily as

Next Question

An inhibitory postsynaptic potential (IPSP) typically involves the opening of

Back to All Questions

🔗 Related MCQs

An increase in the incidence of ectopic pregnancies within a population can often be epidemiologically correlated with a prior increase in the prevalence of which sexually transmitted disease?
July 16, 2026
In the life cycle of Herpes Simplex Virus 2 (HSV-2), the virus travels along nerve fibers to reach the sensory ganglia. The cellular mechanism responsible for this retrograde transport utilizes:
July 16, 2026
A defining characteristic of the lesions associated with the secondary stage of syphilis is that they:
July 16, 2026
The causative agent of genital herpes, HSV-2, is enveloped. The biological significance of this viral envelope in the context of transmission is that it makes the virus:
July 16, 2026
The structural basis for the severe cardiovascular complications seen in tertiary syphilis, such as aortic aneurysms, is the chronic inflammation and destruction of:
July 16, 2026

Categories

View all →