A drug is called an agonist if it ________.a. blocks a receptorb. interferes with neurotransmitter reuptakec. acts like the endogenous neurotransmitter bybinding to its receptord. blocks the voltage-gated calcium ion channel

Q: Heroin mimics the actions of endorphins, inhibiting pain signals and creating a “high” feeling.…

A: Introduction: Heroin is made from morphine which is a highly potent pain killer that occurs…

Q: Transmission of the nerve signal across a synapse is accomplishedby thea. movement of Na+ and K+.b.…

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

Q: ou studied how neurotransmitter act and their use in medicine. Based on the information answer how…

A: Tetrahydrocannabinol (THC) is a psychoactive substance commonly called marijuana.

Q: The nervous system sends chemical signals to other distant cells in the form of a) Action potentials…

A: A neuron conveying a message (i.e., a presynaptic neuron) delivers a chemical called a…

Q: Pick two neurotransmitters and discuss their effects.

A: Neurotransmitters are the group of chemical messengers synthesized by the nerve fibers of an…

Q: Our nerve impulse travels from one neuron to the next in the form of. a. chemical signal b.…

A: Neuron  Neuron are the functional fundamental unite of peripheral and central nervous system.

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: Most human axons have a myelin sheath that_____ . a. prevents action potentials from moving backward…

A: The complex body of human being functions in a systemic and coordinated way, and this…

Q: Which is NOT a criterion in order to be classified as a neurotransmitter? O It is synthesized in the…

A: They are the chemical messengers which transmit the signal from neurons to a target cell across a…

Q: The ____ cannot be controlled by conscious thought. a. motor neurons b. somatic nervous system…

A: Answer: Introduction: The autonomic nervous system includes two portions the sympathetic and…

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: The ____________  is a period of time in which a neuron is producing an action potential and cannot…

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

Q: Depolarization is: ) Is the 2nd step of an action potential O Is the last step of an action…

A: Depolarization is defined as a transition in a cell that occurs when the cell's electric charge…

Q: Muscarine is a metabotropic acetylcholine receptor agonist. If these receptors open Na+ channels…

A: Introduction :- Acetylcholine receptors are ion channels with extracellular, intramembranous, and…

Q: some pesticides inhibit acetylcholinesterase, the enzymethat breaks down acetylcholine. explain how…

A: Acetylcholine is a neurotransmitter or chemical substance of nerve impulses within the central and…

Q: How do neurotransmitters directly affect the postsynaptic neuron? A)They cause a change in the…

A:

Q: a. Neurosecretory 52. Which is the following is an example of the nervous system directly i system?…

A: The endocrine system is the system that regulates the various functions of the body like growth,…

Q: Which of the following is not a mechanism of action of amphetamine? O release neurotransmitter in…

A: Amphetamines: Amphetamines are drugs that are classified as central nervous system stimulants.…

Q: The greater the influx of calcium into the presynaptic axon terminal, the greater the O magnitude of…

A: An action potential in the presynaptic cell produces an influx of Ca2+which promotes the exocytosis…

Q: Cocaine is a drug that acts by blocking dopamine transporters, the proteins responsible for the…

A: Cocaine is a drug that is highly addictive, it increases alertness, attention, and energy. It is an…

Q: A signal is transmitted from one neuron to the next neuron by means of hormones. nematocysts. the…

A: A neuron is a basic functional unit of the nervous system. It is a complex network of specialized…

Q: ___________ are called “downers” because they depressthe central nervous system.

A: According to the question, we have to find out what are called "downers" because they depress the…

Q: Depolarization is: O Is the last step of an action potential O A reduction in the electrochemical…

A: The action potential is the short-term change in the electric potential on the cell’s surface in…

Q: if you were to develop a drug that target calcium channels to treat epilepsy, would the drug be  an…

A: Epilepsy is a paroxysmal event characterised by abnormal, excessive synchronous neuronal discharges.…

Q: n order for the muscles to contract ______ must bind to receptors in the muscles. a) Serotonin b)…

A:

Q: An undisclosed drug (Drug A) is a drug that can block voltage-gated K* channels when being…

A: Drugs interact with the way neurons use neurotransmitters to send, receive, and process signals.…

Q: Naloxone works because it blocks receptors that usually bind with a. Endogenous opioids b. Heroine…

A: Naloxone is a drug that temporarily counteracts the overdose of the drug that depresses the Central…

Q: What would happen to action potentials in the brain if a drug blocking ATP were immediately…

A: The Na+-K+ pump moves two potassium ions inside the cell in exchange for three sodium ions by using…

Q: Phenytoin (sodium channel blocker) and ethosuximide (calcium channel blocker) are anti-seizure drugs…

A: Seizure occurs due to prolonged depolarisation of epileptic neurons, which will activate voltage…

Q: Fill in the blank:  An action potential is a rapid sequence of changes involving…

A: Action potential (AP) is the mode through which a neuron transports electrical signals. It is…

Q: Explain the time course of the opening and closing of v-g Na+ and K+ channels during the action…

A: Hi, Thanks For Your Question.  Answer : The Opening And Closing Of Of Voltage Gated Na+ and k+…

Q: A biologist finds that a post-neuron responds to a pre-neuron’s AP in a mammal through a cell…

A: The human brain alone contain over 100 billion neurons. Each neutron can have up to 10000…

Q: Which of the following structures has activity like acetylcholine? H3C HC Et Me NMes INMeg H&C H3C…

A: Pilocarpine is the only drug which have same properties of acetylcholine that is used…

Q: Drugs that block acetylcholinesterase activity may result in A. An increase in neuronal inhibition…

A: Acetylcholinesterase inhibitors are the drugs that are capable of blocking the breakdown of…

Q: Substrate B is NEURON X Axon terminal of a cholinergic neuron Substrate A Synthesis and packaging…

A: Neurotransmitter are the message carriers that sends information from one neuron to other neuron or…

Q: A friend’s grandfather was just diagnosed with a disease that is associated with a certain…

A: Excitatory neurotransmitters are of two types. One class excites the nervous system while the other…

Q: The role of calcium in neural transmission is that it enables the axon terminals to effectively

A: Answer- a. secrete neurotransmitter into the synapse via exocytosis.

Q: Cocaine affects a synapse by blocking the reuptake or reabsorbtion of the neurotransmitter dopamine…

A: Dopamine comes from a group of brain cells known as dopaminergic or also known as dopamine-making…

Q: What stimulates the release of calcium from the SR: Select one: O a. The activation of the sodium-…

A: Ans: The type or form of smooth muscle endoplasmic reticulum (ER) is referred to as sarcoplasmic…

Q: Parathyroid hormone (PTH) O allows the kidneys to retain calcium. O increases calcium excretion by…

A: First question - The parathyroid glands consist of four separate glands located on the posterior…

Q: Acetylcholine that binds to a muscarinic acetylcholine receptor will stimulate cardiac muscles.

A: Acetylcholine binds to muscarinic AChRs, which undergo a conformational shift that leads to the…

Q: Some drugs /medication are known to act as neurotransmitters. Try to name at least two of these…

A: A neurotransmitter is a signalling chemical released by a neuron and transmitted across a synapse to…

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.