What are the purposes of the Absolute and Relative Refractory Periods?

Q: Explain the characteristics and purpose of the refractoryperiod.

A: Refractory period is the time during which a cell or an organ is not capable of repeating the same…

Q: What is the role of the relative refractory period?

A: Introduction Nerves play vital role in conduction of signals from CNS to various other organs, nerve…

Q: Define the term potentiation?

A: Potentiation in the field of neurological science was discovered by Terje Lømo in 1966 in the rabbit…

Q: What is the vestibularsystem? How does it operate?

A: Vestibular system is a part of inner ear in vertebrates. In most of the mammals, it is a sensory…

Q: What is meant by the term "dialogic reading"?

A: Dialogic learning is learning that takes place through dialogue. Dialogic processes refer to implied…

Q: How do temporal summation and spatial summation differ?

A: In neurophysiology, the term summation refers to the mechanism through which the generation of an…

Q: What is a sensory modality?

A: The cutaneous sensory systems have many aspects by which the whole sensory information is carried…

Q: Distinguish between interoceptors and exteroceptors.

A: Exteroceptors respond to stimuli from outside the body - vision, sound, touch, smell, temperature,…

Q: Define and give examples of receptive fields.

A: Receptive field The receptive field of a sensory neuron is a region of space in which the presence…

Q: How Interoceptors receive stimuli ?

A: The afferent neurons, also called sensory neurons, convert sensory stimuli into graded or action…

Q: What is absolute refractory period?

A:

Q: What is the difference of depolarization and hyperpolarization? Why do cold receptors depolarize…

A: both are the phases in the generation and conduction of an action potential.

Q: Explain the difference between the relative and absolute refractory periods. Briefly describe the…

A: A voluntary muscle fibre contracts when threshold stimulus (optimum stimulus that could generate a…

Q: When do EPSPs and IPSPs occur?

A: EPSP  :- Cause Membrane Potential to move closer to threshold. Caused by an opening of Cation…

Q: How are EPSPs produced? IPSPs?

A: Neurons possess electrical excitability, the ability to respond to a stimulus and convert it into an…

Q: Explain the physiological basis of the absolute and relative refractory periods?

A: The absolute refractory period can be defined as the period during which another action potential…

Q: How are Depolarization and graded potential caused?

A: Depolarization is also known as Hypopolarization. Depolarization results in a change in the electric…

Q: Why can a greater-than-normal stimulus trigger an AP during the relative refractory period but not…

A: Our brain sends and receives information in the form of electrical signals. These electrical signals…

Q: Define relative refractory period

A: Muscles are the largest delicate tissues of the musculoskeletal framework. Muscle is inferred from…

Q: What is spatial summation?

A: Spatial summation is when progressively larger numbers of primary afferent (presynaptic) neurons are…

Q: Two major material baroreceptors are located where?

A: Baroeceptors are a type of mechanoreceptors which are aimed at maintaining blood pressure and hence…

Q: Do refractory periods help keep APs separate?

A: Refractory periods and action potential go simultaneously for most of the time. There are two…

Q: Applying a pressure stimulus to the fluid-filled capsule of an isolated Pacinian corpuscle causes a…

A: The nervous system is a complicated biological part made up of a network of many nerves. Signal…

Q: What is the difference between the absolute refractory period versus the relative refractory period?

A: Refractory period – duration of time during which the cell is unable to respond to a stimulus. It…