Transmission of the nerve signal across a synapse is accomplishedby thea. movement of Na+ and K+.b. release of a neurotransmitter by a dendrite.c. release of a neurotransmitter by an axon.d. release of a neurotransmitter by a cell body.e. All of these are correct.

Q: The blood-brain barrier Select one: O A. allows action potentials to travel faster using saltatory…

A: The blood-brain barrier is an organized blood vessels and tissue that is comprised of firmly…

Q: What event triggers an action potential?a. Opening of sodium channelsb. Opening of delayed potassium…

A: 1- Opening of delayed potassium channels 3-High concentration of negative ions outside the cell.…

Q: The Na+/K+ ATPase pump is a. not required for action potential firing. b. important for…

A: Introduction  Chloride is the most abundant anion in the extracellular fluid. Along with Chloride…

Q: A synapse is basically the same thing as a neurotransmitter. a. True b. False

A: Neuron is the structural and functional unit of nervous system. Electrical signals are transmitted…

Q: The purpose of the autonomic nervous system is to do all of the following excepta. stimulate…

A: Autonomic nervous system is the division of the peripheral nervous system which controls the…

Q: Transmission of the nerve impulse across a synapse isaccomplished bya. the release of Na+ at the…

A: Introduction  Neuron/Nerve: A neuron is a single nerve cell which consists of central cell body,…

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: A change in the voltage across a neuron’s plasma membranethat makes the neuron less likely to fire…

A: The neuron is the structural and functional unit of the nervous system. The neuron is also known as…

Q: The difference in charges across the plasma membrane of anunstimulated neuron is calleda. an EPSP.b.…

A: A neuron refers to the structural and functional unit of the nervous system which is involved in the…

Q: Alzheimer's disease may cause a lack of acetylcholine in some parts of the brain. The lack of…

A: The acetylcholine is a neurotransmitter that is released from the presynaptic nerve terminal…

Q: All parasympathetic division synapses useas a neurotransmitter.a. dopamineb. norepinephrinec.…

A: The PSNS results in relaxation of blood vessels, reducing total peripheral resistance. It also…

Q: What detects the increase of intracellular Ca2+ concentration when action potentials arrive at the…

A: Action potential is sudden , rapid change in the resting membrane potential across a cell membrane…

Q: Posttetanic potentiation of a synapse increases the amount of in the axonterminal.a.…

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

Q: Select ALL statements that are TRUE regarding a drug that would inactivate the enzyme…

A: A drug that inactivates the enzyme called acetylcholinesterase is known as Acetylcholinesterase…

Q: nsistent or persistent synaptic firing in the CNS

A: A synapse is defined as a tiny gap through which a nerve cell or neuron can send impulses to another…

Q: True or False a. When they are at rest, neurons are more positively charged inside than outside the…

A:

Q: During the depolarization phase of an action potential, the permeability of the plasma membrane toa.…

A: Depolarization influence the membrane to attain the threshold potential at which the nerve cell…

Q: An animal is exposed to a plant toxin that breaks open synaptic vesicles in dopamine, serotonin, and…

A: Synaptic transmission refers to the process in which the neuron transmits information to the next…

Q: Which of the following examples of synaptic integration is most likelyto lead to an action potential…

A: The cell that lies after the synapsis and receives the neurotransmitter from the presynaptic cell is…

Q: At an electrical synapse, presynaptic and postsynapticmembranes interface througha. neurofibril…

A: Gap junctions

Q: When the action potential begins, Na+ gates open, allowing Na+ to cross the membrane. The charge…

A: Membranes potential can be defined as the change in electric potential due to changes in the amount…

Q: 18. How is a nerve impulse transmitted across a synapse from a presynaptic to a postsynaptic cell?…

A: The correct answer to the question is: c. via a neurotransmitter

Q: A synapse is:   a. a gap between neurons   b. crossed by a chemical   c. separates the axon end…

A: the microscopic gap present between terminal end of axon of one neurone and dendron or axon or cell…

Q: The rate of information transmission from the central nervous system (CNS) to an effector organ will…

A: Nerve impulses or action potentials are electrical signals that travel along the length of a neuron.…

Q: Imagine that you are hiking in the mountains one afternoon with friends. As you turn a corner, you…

A: a. The specific division of the nervous system that is responsible for the body's response to this…

Q: Excitatory postsynaptic (EPSP'S) the resting membrane potentials A. have little or no effect b…

A: A current generated in our body in the membranes of the neuron cells. It is due to voltage…

Q: At an electrical synapse, presynaptic and postsynaptic membranes interface through a. neurofibril…

A: The brain is the main part of the body that controls every action in our body. It is located in the…

Q: Neurotransmitters must pass from an axon terminal to the next dendrite by crossing a fluid-filled…

A: Neurons facilitate communication in the brain. A neuron is made up of dendrites (receives…

Q: Predict what would happen if the calcium ion channels in the axon terminal were blocked   a. It…

A: The message is transmitted across the nervous system in the form of nerve impulse. The neurons are…

Q: Among the followings which does not indicate the stimulation of parasympathetic system? A.…

A: Nervous system is the main system which helps in control and coordination of the body. It is divided…

Q: Summationa. is caused by combining two or more graded potentials.b. occurs at the trigger zone of…

A: The action potential is the temporary shifts in the potential of the neuronal membrane which results…

Q: Choose all of the processes below that are related to the nervous system communications: (multiple…

A: Nervous system is responsible for regulating all the voluntary and involuntary functions of the…

Emotions

Emotions are biologically based psychological conditions caused by neurophysiological changes which are linked to different factors such as thoughts, emotions, behavioral responses, and pleasure or displeasure. These emotions are not similar to moods. The mood is an affective state. Mood depends upon several factors, such as weather, the environment, physiology, etc. Emotions can be beneficial or detrimental depending on the situation. Emotional reactions are simple. Emotional well-being is strongly affected by our well-being, and such feelings are private.