What is the explanation for the pattern of granulation?
What is the explanation for the pattern of granulation seen on the visible surface of the Sun? The granules are the tops of hot gas that have risen from the Sun's convective zone. The gas motions within granules on the solar surface are: upward in bright cell centers and downward around the darker edges.
What causes the bubbling pattern of granulation that we see in the Sun’s photosphere?
Granules on the photosphere of the Sun are caused by convection currents (thermal columns Bénard cells) of plasma within the Sun's convective zone. The rising part of the granules is located in the center where the plasma is hotter. The outer edge of the granules is darker due to the cooler descending plasma …
What is the cellular granulation pattern seen on the visible surface of the Sun?
What is the explanation for the bright cells of photospheric gases that make up the cellular granulation pattern seen on the visible surface of the Sun? The cells are the tops of blobs of hot gas that have risen from the Sun's convective zone.
What feature of the photosphere is evidence for convection in the Sun?
Cards
| Term What feature of the photosphere is evidence for convection in the Sun? | Definition granules |
|---|---|
| Term Sunspots appear as dark blotches on the surface of the sun because they | Definition are cool areas with temperature of about 4500K |
•Nov 4, 2012
What causes granulation quizlet?
Granulation is caused by rising currents of hot gas below the photosphere.
What causes granulation tissue?
Granulation tissue formation is part of a normal healing process. Under certain conditions, such as infection, self-mutilation, or a local reaction to a chronically implanted, foreign material, this tissue grows uncontrollably and becomes very vascular and secretive.
What does granulation show is happening inside the Sun?
Close-up views of the photosphere also show patterns of light areas surrounded by darker borders, called "granulation." Similar to the patterns you can see at the top of a pot of boiling water or oatmeal, granulation is caused by heat rising upward to the photosphere from the hotter solar interior.
What causes granulation astronomy?
A granule is a convection cell in the Sun's photosphere. They are caused by convection currents of plasma in the Sun's convective zone, directly below the photosphere. The grainy appearance of the solar photosphere is produced by the tops of these convective cells and is called granulation.
What features of a granulation cell indicate that it is a small site of convection?
The outer edge of the granules is darker due to the cooler descending plasma. In addition to the visible appearance, which would be explained by convective motion, Doppler shift measurements of the light from individual granules provides evidence for the convective nature of the granules.
What does the granulation tell us about the layers below the photosphere?
What does the granulation tell us about the layers below the photosphere? Since granules on the sun's photosphere are constantly growing and shrinking, astronomers can assume that convection currents are happening below it, where the gas rises and falls due to heat.
What causes granulation astronomy quizlet?
Granulation is caused by rising currents of hot gas below the photosphere.
What does it mean when a wound is granulating?
What Does The Presence of Granulation Tissue Mean? In short, observing granulation tissue in the bed of the wound means that the wound is progressing from the inflammatory phase of healing to the proliferative phase of healing. Several important cellular developments are occurring.
What is formed from granulation tissue quizlet?
Formation of granulation tissue, which late matures to form fibrous scar tissue.
Why granulation is required?
Granulation, the process of particle enlargement by agglomeration technique, is one of the most significant unit operations in the production of pharmaceutical dosage forms, mostly tablets and capsules. Granulation process transforms fine powders into free-flowing, dust-free granules that are easy to compress.
Why does convection cause granulation?
A granule is a convection cell in the Sun's photosphere. They are caused by convection currents of plasma in the Sun's convective zone, directly below the photosphere. The grainy appearance of the solar photosphere is produced by the tops of these convective cells and is called granulation.
What is granulation and what causes it on Sun?
A granule is a convection cell in the Sun's photosphere. They are caused by convection currents of plasma in the Sun's convective zone, directly below the photosphere. The grainy appearance of the solar photosphere is produced by the tops of these convective cells and is called granulation.
What is formed from granulation tissue?
Granulation tissue is vascularized tissue that forms as chronic inflammation evolves. The new capillaries make the tissue appear pink and granular, thus the name. Histologically, one can observe macrophages and proliferating fibroblasts within granulation tissue.
What is the significance of granulation tissue?
Granulation tissue is an important component in the wound healing process. Wounds can heal by primary intention (wound edges approximate easily) and secondary intention (wounds edges do not approximate). Granulation tissue matrix will fill wounds that heal by second intention.
What are Granulations?
Definition of granulation 1 : the act or process of granulating : the condition of being granulated. 2 : one of the minute red granules of new capillaries formed on the surface of a wound in healing.
What is granular form?
A granular material is a conglomeration of discrete solid, macroscopic particles characterized by a loss of energy whenever the particles interact (the most common example would be friction when grains collide).
What causes granulation in astronomy?
A granule is a convection cell in the Sun's photosphere. They are caused by convection currents of plasma in the Sun's convective zone, directly below the photosphere. The grainy appearance of the solar photosphere is produced by the tops of these convective cells and is called granulation.
What does granulation mean?
Definition of granulation 1 : the act or process of granulating : the condition of being granulated. 2 : one of the minute red granules of new capillaries formed on the surface of a wound in healing.
What is granulation in biology?
Definition. noun, plural: granulations. (1) The act or process of forming grains or granules, e.g. the granulation of powder and sugar. (2) The formation of granulation tissue, i.e. the new connective tissue which replaces the initial fibrin clot on wounds.
What does granular mean in science?
A granular material is a conglomeration of discrete solid, macroscopic particles characterized by a loss of energy whenever the particles interact (the most common example would be friction when grains collide).
What does granular mean in biology?
Granules are particles in a cell's cytoplasm that show up as small spots when the cell is examined through a microscope. They are often secretory vessels.
Where is granulation tissue found?
Granulation tissue is new connective tissue and microscopic blood vessels that form on the surfaces of a wound during the healing process. Granulation tissue typically grows from the base of a wound and is able to fill wounds of almost any size.
What is granularity in research?
Definition. Granularity concerns the ability to represent and operate on different levels of detail in data, information, and knowledge that are located at their appropriate level. The entities are described relative to that level, which may be more coarse-grained or concern fine-grained details.
What is granule in chemistry?
(Chemical Engineering: Operations, Solid-solid operations) A granule is a medium-sized particle which has an irregular shape. The liquid rapidly evaporates, leaving behind dry powder or dry solid granules. Granules are solid agglomerates of powder particles.
What are granules in immunology?
A group of leukocytes, called granulocytes, contain granules and play an important role in the immune system. The granules of certain cells, such as natural killer cells, contain components which can lead to the lysis of neighboring cells.
What causes granulation tissue to form?
TGF-β is a growth factor produced by both fibroblasts and keratinocytes during the wound healing process and has been shown to induce granulation tissue formation and the differentiation of myofibroblasts. The keratinocytes are responsible for re-epithelialization of the epidermis after injury.