EXCITABLE TISSUE Meaning and
Definition
-
Excitable tissue refers to a specific type of biological tissue that is capable of generating and propagating electrical impulses or signals. It primarily includes nerve tissue and muscle tissue, both of which possess the unique ability to respond to stimuli, undergo depolarization, and transmit electrical signals throughout the body.
In nerve tissue, excitable cells known as neurons function as the primary components. These neurons consist of a cell body, dendrites, and an axon. When a stimulus is detected through the dendrites, it triggers a series of electrical changes within the neuron, leading to the opening of ion channels in the cell membrane. This results in the rapid flow of ions, such as sodium and potassium, which generates an electrical impulse known as an action potential. This action potential then travels down the axon, allowing the transmission of signals between different regions of the body.
Muscle tissue, on the other hand, is composed of excitable cells called muscle fibers. These fibers contract in response to electrical signals from motor neurons, resulting in movement and muscle activity. Within the muscle fibers, excitation-contraction coupling occurs, where an action potential triggers the release of calcium ions, leading to the contraction of muscle fibers.
Overall, excitable tissues play a crucial role in the coordination and transmission of electrical signals within the body, enabling functions such as sensory perception, motor control, and the regulation of vital bodily processes.
Common Misspellings for EXCITABLE TISSUE
- wxcitable tissue
- sxcitable tissue
- dxcitable tissue
- rxcitable tissue
- 4xcitable tissue
- 3xcitable tissue
- ezcitable tissue
- eccitable tissue
- edcitable tissue
- escitable tissue
- exxitable tissue
- exvitable tissue
- exfitable tissue
- exditable tissue
- excutable tissue
- excjtable tissue
- excktable tissue
- excotable tissue
- exc9table tissue
- exc8table tissue
Etymology of EXCITABLE TISSUE
The etymology of the word "excitable tissue" can be traced back to the root words "excite" and "tissue".
1. Excite: The term "excite" is derived from the Latin word "excitare", which means "to call forth, awaken, incite". It later evolved into the Old French word "exciter", meaning "to provoke, arouse". In English, "excite" carries similar meanings, referring to the act of stirring up, stimulating, or causing heightened activity or emotion in something or someone.
2. Tissue: The word "tissue" comes from the Latin word "texere", meaning "to weave". It was used to describe the weaving together of fibers to create a fabric. In the scientific context, "tissue" refers to a group or collection of similar cells that perform a specific function within an organism's body.
Infographic
Add the infographic to your website:
