A neuron may receive signals from thousands of synaptic terminals. What determines whether the receiving neuron will respond by transmitting a signal?     a. the concentration of transmitter inside the receiving neuron     b. the summation of excitatory and inhibitory signals received     c. the number of glial cells contact the receiving neuron

Q: The release of a neurotransmitter from a terminal button produces an inhibitory postsynaptic…

A: The neurons, also known as the nerve cells, are responsible for conduction of an impulse. The…

Q: Match the description with the statement that best describes the following regions e dendrites +…

A: Neuron:

Q: A neuron without an axon would be unable to     a. conduct nerve impulses     b. divide     c.…

A: A neuron is a structural and functional unit of the nervous system. It is capable of perceiving any…

Q: Schwann cells are a type of glial cell found in the nervous system. In addition to the conduction of…

A: Schwann cells are the major glial cells found in the peripheral nervous system (PNS). They provide…

Q: What evidence led Sherrington to conclude that transmission at a synapse is different from…

A: The communication between one neuron and the next differs from the communication along a single…

Q: Which of the following is NOT an example of communication that happens from one neuron to another…

A: Answer: - Option a - Endocrine signalling (ex. hormones secreted into the bloodstream travel and…

Q: Certain cells in the retina respond differently to the direction in which objects move. To…

A: A retinal ganglion cell (RGC) :- is a kind of neuron which is found near the inner surface of the…

Q: Where does collateral sprouting take place? a. In the cell body b. In the axon c. In the dendrites…

A: Collateral sprouting can be defined as the growth of intact axons into the neighbouring denervated…

Q: What happens to the membrane potential of a neuron when an action potential is stimulated?   A.…

A: The generation of action potential occurs muscle and neural cells in case of a sudden variation in…

Q: Why does the velocity of nerve impulse conduction along the nerve decrease when the nerve is…

A: Neurons are the structural and functional unit of nervous system. They are long and branched. They…

Q: Which of the following statements regarding polarized membranes is incorrect? a. There is a…

A: At rest, the ionic composition of the interior and outside of a neuronal membrane varies. As a…

Q: What membrane protein of the neuron is responsible for briefly increasing the Na+ permeability of…

A: Ans:- the option is (c)-the voltage gated sodium chennel.

Q: What happens to the sodium when the sodium channels open?

A: Sodium channels are basic film proteins that structure particle channels, directing sodium…

Q: At rest, a neuron has a lower concentration of sodium than the surrounding fluid. When a neuron…

A: The nervous system is highly complex among different organ systems in animals. By transmitting…

Q: Which one of the following is true of the concentrations of ions inside and outside of an…

A: A neuron, also known as a nerve cell, is an electrically excitable cell that communicates with other…

Q: When an action potential arrives in an axon terminal, synaptic vesicles containing acetylcholine are…

A: Acetylcholine is the main neurotransmitter of the nervous system. It is associated with many…

Q: What part of a neuron is responsible for receiving information? a. Axon. b. Node of Ranvier. c.…

A: The nervous tissue is made up of basic units of electrically excitable cells called neurons. The…

Q: What guarantees that there are unidirectional action potential? A. threshold B. depolarization…

A: Action potential generates when the neurons want to pass the information along the body from its…

Q: Imagine that you decide to make a move. To make this decision, neurons in your brain's cerebral…

A: a ) In which part of the brain is neuron A located ? The neuron A is located in the dorsolateral…

Q: Which part of a neuron transmits an electrical signal toa target cell?a. dendritesb. somac. cell…

A: The nerve cell is also called a neuron, the main part of the neural system. The millions and…

Q: What is myelin? A. Projection on a neuron cell body that is sensitive to stimuli B. Another name…

A: The complex organ system present in the human body that functions in organizing all metabolic…

Q: What determines the effect of neurotransmitter release on the post-synaptic neurons?  a. the size of…

A: Neurotransmitters are chemicals responsible for carrying a signal or an impulse via a synapse. They…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.