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Related Concept Videos

Amplifying Signals via Second Messengers01:15

Amplifying Signals via Second Messengers

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Many receptor binding ligands are hydrophilic; they do not cross the cell membrane but bind to cell-surface receptors. Thus, their message must be relayed by second messengers present in the cell cytoplasm. There are several second messenger pathways, each with its own way of relaying information. For example, the G protein-coupled receptors can activate both phosphoinositol and cyclic AMP (cAMP) second messenger pathways. The phosphoinositol pathway is active when the receptor induces...
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Communication01:03

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Communication between two animals occurs when one animal transmits an information signal that causes a change in the animal that receives the information. Organisms communicate with one another in a host of different ways. Signals can be auditory, chemical, visual, tactile, or a combination of these. Communication is a critical behavioral adaptation that promotes survival, growth, and reproduction.
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Contact-dependent signaling, as the name suggests, requires that communicating cells be in direct contact with each other. This is achieved either through receptor-ligand interactions or by specialized cytoplasmic channels that allow the flow of small molecules between cells. In animal cells, channels called gap junctions facilitate contact-dependent signaling in certain tissues, whereas, plasmodesmata perform a similar function in plants.
Gap Junctions
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Barriers to Effective Communication II01:21

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The barriers to effective communication also include cultural barriers, semantic barriers, gender barriers, and time constraints.
Cultural barriers:
Differences in values, beliefs, religion, knowledge, and tradition can significantly impact communication. Awareness of nonverbal cues is critical, especially when conversing with a patient from a different culture. What appears appropriate in one culture may be inappropriate in another.
Semantic barriers:
As a result of their tendency to use...
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Barriers to Effective Communication I01:30

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A communication barrier is any distortion or interruption during a conversation, resulting in miscommunication of the message. A good communicator should know these barriers and continuously check for the listener's understanding by obtaining feedback.
Communication barriers include the following:
Physiological barriers: They are limitations caused by a person's health condition or disability, such as hearing loss, poor eyesight, illness, or unconsciousness. An example to overcome this...
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Sympathetic Signaling01:32

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Sympathetic signaling, a vital part of the autonomic nervous system, plays a crucial role in mobilizing the body's resources in response to stress or emergencies. It involves the transmission of nerve impulses from sympathetic preganglionic fibers to postganglionic fibers. This results in the release of specific neurotransmitters and activation of adrenergic receptors.
Sympathetic preganglionic fibers release the neurotransmitter acetylcholine (ACh) onto the ganglionic neurons in the...
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Message from President

Vinay Kumar1

  • 1President: Indian Psychiatric Society, Board Member (South Asia): World Psychiatric Association, Secretary: Suicidology Sp Section: World Association for Social Psychiatry, Past Hony General Secretary: Indian Psychiatric Society (2018-20), Imm Past President: Indian Psychiatric Society Eastern Zonal Branch (2020-21), Hony Treasurer: Indian Association for Social Psychiatry (2016-2020), Chairperson: Publication Committee, Indian Psychiatric Society (2016-18), Past Hony Treasurer: Indian Psychiatric Society (2012-16), Chairperson IPS Election Commission 2010-11, Direct Council Member: IPS (2005-2008), Consultant Psychiatrist, Manoved Mind Hospital, Patna.

Indian Journal of Psychiatry
|March 8, 2024
PubMed
Summary

No abstract available in PubMed .

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