Intussusception (Noun)
Meaning 1
(biology) growth in the surface area of a cell by the deposit of new particles between existing particles in the cell wall.
Classification
Nouns denoting natural processes.
Examples
- Intussusception occurs when new cell wall material is deposited between existing particles in the cell wall, increasing the surface area of the cell.
- The process of intussusception allows cells to grow and expand their cell walls while maintaining control over the rate of growth.
- Unlike other cell growth mechanisms, intussusception involves the inward deposition of new particles, rather than outward expansion or addition of new particles.
- In some cells, intussusception is the primary method of cell wall growth, allowing for rapid increase in cell size.
- Intussusception plays a critical role in the growth and development of plant cells, where new cell wall material must be deposited to support cell expansion.
Hypernyms
Meaning 2
The folding in of an outer layer so as to form a pocket in the surface; "the invagination of the blastula".
Classification
Nouns denoting natural processes.
Examples
- The shape of the nucleus formed through invagination is crucial for its proper function within the cell.
- The morphallaxis process involves folding inward, a form of invagination, in several cell layers.
- Invagination of the outer membrane will induce polarization in a previously uniform cell.
- A developmental example of invagination is observed during embryonic gastrulation in mammals.
- Certain processes, such as oogenesis, require complex invagination to produce the shell of the mature oocyte.