What is a Neurotransmitter ?

What is a Neurotransmitter ?
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Answer :

Neurotransmitters are neurotransmitters, the chemicals that are secreted from nerve cells and help nerve stimuli to be transported from one neuron to another neuron or to a muscle cell or a gland .
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Related questions

What is the difference between a hormone and a neurotransmitter?

Description : What is the difference between a hormone and a neurotransmitter?

Last Answer : A: Hormones are chemical messengers that are produced by endocrine glands and are transported through the bloodstream to target cells, while neurotransmitters are chemical messengers that are released by ... at synapses to transmit signals between neurons or from neurons to muscles or glands.

What is the difference between a neurotransmitter and a hormone?

Description : What is the difference between a neurotransmitter and a hormone?

Last Answer : A: A neurotransmitter is a chemical messenger that transmits signals between neurons, while a hormone is a chemical messenger that regulates physiological processes in the body.

What is the difference between a hormone and a neurotransmitter?

Description : What is the difference between a hormone and a neurotransmitter?

Last Answer : A: Hormones are chemical messengers that are produced by glands and travel through the bloodstream to target cells, while neurotransmitters are chemical messengers that are produced by neurons and travel across synapses to target cells.

What is a Neurotransmitter ?

Description : What is a Neurotransmitter ?

Last Answer : : Neurotransmitters are the chemicals that are released from the nerve cells and help the nerve stimuli to be transported from one neuron to another neuron or to a muscle cell or a gland.

In which category of muscle fibers, contraction can be regulated by acetylcholine neurotransmitter ?

Description : In which category of muscle fibers, contraction can be regulated by acetylcholine neurotransmitter ?

Last Answer : In which category of muscle fibers, contraction can be regulated by acetylcholine neurotransmitter ? A. ... . Smooth muscle fibers D. all of these

What neurotransmitter controls the somatic nervous system and how does it work?

Description : What neurotransmitter controls the somatic nervous system and how does it work?

Last Answer : Acetylcholine (ACh) is the only neurotransmitter used in themotor division of the somatic nervous system. It works by bindingto acetylcholine receptors on skeletal muscle fibers and openingligand-gated sodium channels in the cell membrane.

The transport of proteins out of the cell is termed exocytosis. Which of the following statement(s) is/are true concerning this process? a. Secretory vesicles fuse with the plasma membrane b. The process can occur in either a constitutive or regulated process c. A regulated secretion is triggered by a stimulus, most likely a hormone or a neurotransmitter d. A decrease in cytoplasmic calcium occurs as part of the secretion process

Description : The transport of proteins out of the cell is termed exocytosis. Which of the following statement(s) is/are true concerning this process? a. Secretory vesicles fuse with the plasma membrane b. ... or a neurotransmitter d. A decrease in cytoplasmic calcium occurs as part of the secretion process

Last Answer : Answer: a, b, c Transport vesicles that bud off the Golgi network carry both material to be secreted from the cell and protein destined to become components of the plasma ... but may also involve generation of diacylglycerol or production of cyclic AMP which activate kinases or phosphatases

The neurotransmitter agent that is normally released in the sinoatrial node of the heart in response to a blood pressure increase is (a) Acetylcholine (b) Dopamine (c) Epinephrine (d) Glutamate (e) Norepinephrine

Description : The neurotransmitter agent that is normally released in the sinoatrial node of the heart in response to a blood pressure increase is (a) Acetylcholine (b) Dopamine (c) Epinephrine (d) Glutamate (e) Norepinephrine

Last Answer : Ans: A

Which neurotransmitter is depleted in Parkinson’s disease?

Description : Which neurotransmitter is depleted in Parkinson’s disease?

Last Answer : Parkinson's disease results from a deficiency of the neurotransmitter dopamine in certain brain neurons that regulate motor activity. Parkinson's disease is characterized by stiff posture, tremors, slowness ... Nerve cells can use levodopa to make dopamine and replenish the brain's dwindling supply.

How are the neurotransmitter molecules inactivated after they are released at a synapse?

Description : How are the neurotransmitter molecules inactivated after they are released at a synapse?

Last Answer : After a chemical neurotransmitter has been released from the synaptic terminal, its action must be terminated in some way. Otherwise, the continued presence of the transmitter in the ... mechanism is used to inactivate Acetylcholine released from the synaptic terminals of the motor neurons.

Prostaglandin is; B A. Neurotransmitter B. Autacoids C. Endocrine hormone D. Steroid hormone

Description : Prostaglandin is;  B A. Neurotransmitter B. Autacoids C. Endocrine hormone D. Steroid hormone

Last Answer : Autacoids

The effect of calcium ions on neurotransmitter release at synapses include: a. vesicular fusion b. tonic depolarization of the presynaptic neurone c. post-tetanic potentiation d. all above

Description : The effect of calcium ions on neurotransmitter release at synapses include: a. vesicular fusion b. tonic depolarization of the presynaptic neurone c. post-tetanic potentiation d. all above

Last Answer : all above

The release of neurotransmitter from synaptic vesicles: a. takes place by exocytosis b. is controlled by neuronal calcium influx c. is quantal d. all above

Description : The release of neurotransmitter from synaptic vesicles: a. takes place by exocytosis b. is controlled by neuronal calcium influx c. is quantal d. all above

Last Answer : all above

Acetylcholine is a neurotransmitter at: a. sweat glands b. the adrenal medulla c. parasympathetic ganglia d. all above

Description : Acetylcholine is a neurotransmitter at: a. sweat glands b. the adrenal medulla c. parasympathetic ganglia d. all above

Last Answer : all above

With regard to the autonomic nervous system: a. the dorsal root ganglia is made up mainly of the cell bodies of the sympathetic nerves b. the preganglionic sympathetic fibres are usually longer than preganglionic parasympathetic fibres c. acetylcholine is the neurotransmitter at the ganglia of both sympathetic and parasympathetic nervous system d. botulin toxin blocks acetylcholine receptors

Description : With regard to the autonomic nervous system: a. the dorsal root ganglia is made up mainly of the cell bodies of the sympathetic nerves b. the preganglionic sympathetic fibres ... the ganglia of both sympathetic and parasympathetic nervous system d. botulin toxin blocks acetylcholine receptors

Last Answer : the dorsal root ganglia is made up mainly of the cell bodies of the sympathetic nerves

Parkinson’s disease (characterized by tremors and progressive rigidity of limbs) is caused by degeneration of brain neurons that are involved in movement control and make use of neurotransmitter (a) acetylcholine (b) norepinephrine (c) dopamine (d) GABA.

Description : Parkinson’s disease (characterized by tremors and progressive rigidity of limbs) is caused by degeneration of brain neurons that are involved in movement control and make use of neurotransmitter (a) acetylcholine (b) norepinephrine (c) dopamine (d) GABA.

Last Answer : c) dopamine

Which one of the following does not act as a neurotransmitter? (a) Cortisone (b) Acetylcholine (c) Epinephrine (d) Norepinephrine

Description : Which one of the following does not act as a neurotransmitter? (a) Cortisone (b) Acetylcholine (c) Epinephrine (d) Norepinephrine

Last Answer : (a) Cortisone

The figure shows an axon terminal and synapse. Select the option giving correct identification of labels A-D. A C D B (a) A-Action potential, C-Neurotransmitter (b) B-Neurotransmitter, D- Receptor capsules (c) C-Receptor, D-Synaptic vesicles (d) A-Axon terminal, B- Serotonin complex

Description : The figure shows an axon terminal and synapse. Select the option giving correct identification of labels A-D. A C D B (a) A-Action potential, C-Neurotransmitter (b) B-Neurotransmitter, D- Receptor capsules (c) C-Receptor, D-Synaptic vesicles (d) A-Axon terminal, B- Serotonin complex

Last Answer : c) C-Receptor, D-Synaptic vesicles

A diagram showing axon terminal and synapse is given. Identify correctly at least two of A - D. (a) A - Neurotransmitter, B - Synaptic cleft (b) C - Neurotransmitter, D - Ca++ (c) A - Receptor, C - Synaptic vesicles (d) B - Synaptic connection, D - K+

Description : A diagram showing axon terminal and synapse is given. Identify correctly at least two of A - D. (a) A - Neurotransmitter, B - Synaptic cleft (b) C - Neurotransmitter, D - Ca++ (c) A - Receptor, C - Synaptic vesicles (d) B - Synaptic connection, D - K+

Last Answer : (c) A - Receptor, C - Synaptic vesicles

What is the role of neurotransmitter?

Description : What is the role of neurotransmitter?

Last Answer : The terminal button at the end of the axon holds the synaptic vesicles. When the signal reaches the end of the axon the vesicles discharge a chemical called a neuro transmitter. Neurotransmitters are chemicals ... than that cell's threshold then the cell fires, sending the message to the next cell.

The neurotransmitter system in the brain most affected in Alzheimer’s disease is: A. Glutaminergic B. Gabaergic C. Dopaminergic D. Cholinergic

Description : The neurotransmitter system in the brain most affected in Alzheimer’s disease is: A. Glutaminergic B. Gabaergic C. Dopaminergic D. Cholinergic

Last Answer : D. Cholinergic

The following statement about histamine is not correct: A. It is the sole mediator of immediate hypersensitivity reaction B. It plays no role in delayed hypersensitivity reaction C. It serves as a neurotransmitter in the brain D. All types of histamine receptors are G protein coupled receptors

Description : The following statement about histamine is not correct: A. It is the sole mediator of immediate hypersensitivity reaction B. It plays no role in delayed hypersensitivity reaction C. It serves as a neurotransmitter in the brain D. All types of histamine receptors are G protein coupled receptors

Last Answer : A. It is the sole mediator of immediate hypersensitivity reaction

The following statement about histamine is not correct: A. It is the sole mediator of immediate hypersensitivity reaction B. It plays no role in delayed hypersensitivity reaction C. It serves as a neurotransmitter in the brain D. All types of histamine receptors are G protein coupled receptors

Description : The following statement about histamine is not correct: A. It is the sole mediator of immediate hypersensitivity reaction B. It plays no role in delayed hypersensitivity reaction C. It serves as a neurotransmitter in the brain D. All types of histamine receptors are G protein coupled receptors

Last Answer : A. It is the sole mediator of immediate hypersensitivity reaction