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 Defining the Word "Feeling" Feeling is a versatile word that encapsulates a wide range of human experiences, from physical sensations to emotional states and intuitive insights. Below is an exploration of its different dimensions: 1. Emotions Feelings often represent emotional states, such as joy, sorrow, anger, or love. These emotions shape our relationships, guide our decisions, and influence our understanding of the world. 2. Physical Sensations On a more tangible level, feeling refers to sensory experiences like warmth, cold, pain, or comfort, which are essential for survival and interaction with our surroundings. 3. Intuition Feelings can also describe a sense of knowing or an instinctual understanding of a situation, often called "gut feelings." 4. Cultural Perspectives Different cultures shape how feelings are expressed and interpreted, emphasizing their universality and uniqueness in human life. The accompanying image symbolizes the abstract and multifacete...

Tissue (biology)

Tissue (biology)






In biology, tissue is a biological organizational level between cells and a complete organ. A

tissue is an ensemble of similar cells and their extracellular matrix from the same origin that

together carry out a specific function. Organs are then formed by the functional grouping

together of multiple tissues.

The English word "tissue" derives from the French word "tissu", the past participle of the verb

tisser, "to weave".

The study of tissues is known as histology or, in connection with disease, as histopathology.

Xavier Bichat is considered as the "Father of Histology". Plant histology is studied in both plant

anatomy and physiology. The classical tools for studying tissues are the paraffin block in which

tissue is embedded and then sectioned, the histological stain, and the optical microscope.

Developments in electron microscopy, immunofluorescence, and the use of frozen tissue

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