If two action potentials come very close to each other in one and the same presynaptic terminal ... Group of answer options ... temporal summation occurs. ... the second action potential beats out the first. ... an IPSP is formed. ... spatial summation takes place.

Q: a.Would an action potential travels faster in an axon with a wide diameter or a small diameter? b.…

A: The structural and functional unit of the nervous system is called a neuron. A neuron is composed of…

Q: The initial rise in the membrane potential of an axon upon stimulation is called the...........…

A: MEMBRANE POTENTIAL: Membrane potential is difference between potentials of inner side and the…

Q: Label the structures in the following diagram of a neuron. (a) ______________ (b) ______________(c)…

A: The neuron is the building block or fundamental unit of the nervous system. It is a relay system of…

Q: Use Figure Q1(b) of an action potential to answer questions (i) until (iv) below. Choose the correct…

A: The neurons have the capability of generating and transmitting nerve impulses throughout the body.…

Q: A common feature of action potentials is that they(A) cause the membrane to hyperpolarize and then…

A: Plasma membrane always try to maintain potential difference between the sides of the extracellular…

Q: sometimes the terms neuron and nerve are mistakenly used interchangeably. explain the difference…

A: Neurons are the structural and functional unit of nervous system. They are composed of mainly two…

Q: Match the names of the supporting cells found in column B with the appropriate descriptions in…

A: There are two divisions of the nervous system. The central nervous system includes the brain and the…

Q: For a second action potential to be fired an ......threshold must be reached......... the absolute…

A: An “action potential” occurs when the neuron is sending down an axon. It is an “explosion of…

Q: Which of the following is the most direct result of depolarizingthe presynaptic membrane of an axon…

A: Neurotransmitters refer to the endogenous chemicals, which enable neurotransmission. These are the…

Q: Tetrodotoxin is a poison that prevents voltage-gated channels from opening. Would this toxin prevent…

A: Tetrodotoxin is a potential neurotoxin which is extremely poisonous and can be found in the liver…

Q: (a) Contrast unipolar, bipolar, and multipolar neurons structurally. (b) Indicate where each is most…

A: The nervous system's fundamental unit that functions to receive sensory input and send motor…

Q: Which of the following is true regarding the difference between graded and action potentials? a.)…

A: Action potentials activate neural circuits, which can either promote or inhibit particular bodily…

Q: The changes in membrane potential when a neuron is transmitting information is called .....…

A:

Q: Describe how action potentials are conducted by unmyelinated nerve fibers. Why is saltatory…

A: Introduction :- Conductability is the capacity to conduct the electrical along it's pathway. The…

Q: Describe in detail the function for  three  type of potentials seen in neurons  and  describe in…

A: Cells of the nervous system are called neurons, that are seen to communicate with each other in…

Q: Which statement regarding neurotransmission through myelinated and unmyelinated neurons is true?…

A: Myelin sheath is modified plasma membrane that wraps around nerve axon and acts as insulator. The…

Q: ou observe that a neuron treated with a metabolic inhibitor which prevents ATP generation still can…

A: Neurons are the basic unit of the nervous system. The lipid bilayer is selectively permeable and is…

Q: fill in the blank  The repolarization phase of action potentials in neurons is due primarily to…

A: An action potential can be defined as a transitory and propagating change of the resting membrane…

Q: 2) Draw a typical neuron and the relative ion concentrations (high or low) for Na+ and K+ inside and…

A: Neurons are specialized cells responsible for transmitting information throughout the nervous…

Q: From an action potential traveling towards the presynaptic terminal to the potential change in the…

A: Ionotropic synaptic transmission This transmission involves the ionotropic receptors which are also…

Q: If two action potentials from two different presynaptic nerve cells reach the target cell at the…

A: Summation means addition of any two or more things. Summation is of two types namely: Spatial…

Q: Neurotransmitter binding to the receptor is transient andreversible. True or false?

A: In human physiology, neurotransmitters are defined as the chemical compound or substances of the…

Q: Describe in detail  the  three types of potentials seen in neurons and functions of  three  types…

A: The creation of a cerebrum signal : • dendrites: get signals from adjoining neurons (like a radio…

Q: Temporal summation of excitatory inputs onto a neuron (we will refer to that neuron as Neuron A)…

A: Temporal summation is a process by which the postsynaptic potential of a neuron is integrated…

Q: What will happen if threshold value for the generation of action potential is not reached?

A: Action potential is an electrical signal that travels along the cell membrane of neurons. It is…

Q: Describe the resting potential for neurons. How is this potential established? Describe the…

A: A neuron or a nerve cell is the structural and functional unit of the nervous system. They are…

Q: The all-or-none principle, associated with the action potential, states that once membrane potential…

A: Neurons are responsible for the electromagnetic conduction of the signals in the form of stimulus.…

Q: After the depolarisation phase of an action potential, the resting potential is restored by ______.

A: Introduction An action potential is defined as a sudden fall or rise in the potential of the…

Q: If a neurotransmitter binds to a receptor that opens potassium channels, the result is ... Group of…

A: Postsynaptic potentials refer to the alteration in the postsynaptic terminal’s membrane potential of…

Q: Oligodendrocyte , Astrocytes 1. .......................... enhances the velocity of electrical…

A: The brain is the part of the central nervous system along with the spinal cord. It is the hub of…

Q: Concerning neurons, DESCRIBE how local anaesthetics prevent the propagation of an Action Potential.

A: Neurons- They are also called the nerve cells and are responsible for sending and receiving signals…

Q: What is a typical speed of action potential propagation in the absence of myelination?  (Not the…

A: Brain cells called neurons send data and guidelines all through the cerebrum and body. The data is…

Q: The shape of the cell bodies of upper and lower motor neurons are structurally classified as…

A: Neurons (nerve cells) express electrical excitability, the ability to react to and transform an…

Q: (a) Explain the difference between an EPSP and an IPSP. (b) What specifically determines whether an…

A: EPSP- The influx of positively charged ions (typically Na+) into a cell followed by a change in…

Q: Neurons have an electrical charge across their membranes called the resting potential when they are…

A: Answer : Neurons have an electrical charge across their membranes called the resting potential when…

Q: Neurons have an electrical charge across their membranes called the resting potential when they are…

A: The nerve system and the hormonal system work together to regulate and coordinate the human body.…

Q: the most common neurotransmitter in the peripheral nervous system

A: Peripheral nervous system divided into somatic and autonomic nervous system. Autonomic further…

Q: Compare the following:(a) Central neural system (CNS) and Peripheral neural system (PNS)(b) Resting…

A: The structural and functional units of the neural system are neurons that transmit nerve impulses.…

Q: What is a graded action potential ,when talking about the nervous system, in human anatomy?

A: Graded potentials are changes in membrane potential that vary in size. They include diverse…

Q: The all-or-none principle, associated with the action potential, states that once membrane potential…

A: Neurons transport electrical signals through the action potential. Due to the movement of some ions…

Q: Use Figure Q1(b) of an action potential to answer questions (1) until (iv) below. Choose the correct…

A: Nerve impulse refers to an electrical or chemical signal that is transmitted along  a fibre. The…

Q: Select the best answer or answers from the choices given: Identify the neuronal circuits described…

A: Neurons (also called neurons or nerve cells) are the fundamental units of the brain and nervous…