miss qayyum
: Anatomy & Physiology, Task 2 P2, Richard Greensmith, and Health & Social Care & Health Sciences.
P2 Outline the structure of the main tissue of two body organs.
Stomach
The stomach has three layers of non-striated muscle in its wall and an inner lining of columnar epithelium with goblet cells. The tissue connecting the lining with the muscular coat is areolar tissue.
Non striated muscle is a type of muscle tissue, which is also called involuntary, smooth or plain muscle. It still contains the protein filaments; they do not lie in an ordered pattern and therefore do not produce the banding characteristics of striated muscle. The muscle fibres are spindle or cigar shaped with single central nuclei, and dovetail with each other. This type of muscle tends to form sheets and still needs nervous stimulation to effect contraction, this is supplied by the autonomic nervous system, which is part of the nervous system, it is responsible for controlling the internal organs. This type of muscle is found around hollow internal organs such as the stomach, intestines, iris of the eye, bladder and uterus: it is not attached to bones.
Epithelia tissue is the lining of internal and external surfaces and body cavaties including ducts (tubes or channels) carrying secretions from glands. There are nerve supplies to epithelia but they are supplies with oxygen and nutrients from deeper tissues by diffusion as they are surface tissues and are exposed to friction. Their capacity for growth and repair is far greater than other tissues and usually occur during sleep.
Columnar epithelia are cells that are much taller with slightly oval nuclei. They are often associated with microscopic filaments known as cilia. Cilia move in wave- like motions beating towards the orifices, and are commonly found associated with goblet cells, which secrete mucus in the respiratory and alimentary tracts. The mucus traps unwanted particles like carbon and the cilia transports the flow
P2 Outline the structure of the main tissue of two body organs.
Stomach
The stomach has three layers of non-striated muscle in its wall and an inner lining of columnar epithelium with goblet cells. The tissue connecting the lining with the muscular coat is areolar tissue.
Non striated muscle is a type of muscle tissue, which is also called involuntary, smooth or plain muscle. It still contains the protein filaments; they do not lie in an ordered pattern and therefore do not produce the banding characteristics of striated muscle. The muscle fibres are spindle or cigar shaped with single central nuclei, and dovetail with each other. This type of muscle tends to form sheets and still needs nervous stimulation to effect contraction, this is supplied by the autonomic nervous system, which is part of the nervous system, it is responsible for controlling the internal organs. This type of muscle is found around hollow internal organs such as the stomach, intestines, iris of the eye, bladder and uterus: it is not attached to bones.
Epithelia tissue is the lining of internal and external surfaces and body cavaties including ducts (tubes or channels) carrying secretions from glands. There are nerve supplies to epithelia but they are supplies with oxygen and nutrients from deeper tissues by diffusion as they are surface tissues and are exposed to friction. Their capacity for growth and repair is far greater than other tissues and usually occur during sleep.
Columnar epithelia are cells that are much taller with slightly oval nuclei. They are often associated with microscopic filaments known as cilia. Cilia move in wave- like motions beating towards the orifices, and are commonly found associated with goblet cells, which secrete mucus in the respiratory and alimentary tracts. The mucus traps unwanted particles like carbon and the cilia transports the flow