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The basic function of the spleen in the rat, similarly as in man, is to cleanse the blood of damaged old particles of the body itself, but also of foreign particles. To fulfill this function, the spleen is equipped with the white and red pulp with a specific structure of blood circulation.
- Where is the rat spleen?
- Do rodents have spleens?
- Is the spleen a muscle?
- What are the functions of white pulp and red pulp within the spleen?
- What other functions does the spleen perform?
- What is spleen made of?
- What are the cells in spleen?
- What is spleen connected to?
- Why is red pulp called red pulp?
- Why is it called white pulp?
- Can you live without a spleen?
- What function occurs in white pulp of the spleen?
- Does all blood flow through spleen?
- Which of the following is not a function of spleen?
Where is the rat spleen?
The spleen is a dark red to blue-black organ located in the left cranial abdomen. It is adjacent to the greater curvature of the stomach and within the omentum.
Do rodents have spleens?
In mice, rats and humans the spleen consists of the white pulp embedded in the red pulp. ... The red pulp is a reticular connective tissue containing all types of blood cells. The spleen of mice and rats exhibits an additional well-delineated B-cell compartment, the marginal zone, between white and red pulp.
Is the spleen a muscle?
The spleen is surrounded by a capsule composed of dense fibrous tissue, elastic fibers, and smooth muscle.
What are the functions of white pulp and red pulp within the spleen?
The spleen contains two main types of tissue - white pulp and red pulp. White pulp is material which is part of the immune system (lymphatic tissue) mainly made up of white blood cells. Red pulp is made up of blood-filled cavities (venous sinuses) and splenic cords.
What other functions does the spleen perform?
The spleen plays multiple supporting roles in the body. It acts as a filter for blood as part of the immune system. Old red blood cells are recycled in the spleen, and platelets and white blood cells are stored there. The spleen also helps fight certain kinds of bacteria that cause pneumonia and meningitis.
What is spleen made of?
The spleen is the largest lymphatic organ in the body. Surrounded by a connective tissue capsule, which extends inward to divide the organ into lobules, the spleen consists of two types of tissue called white pulp and red pulp. The white pulp is lymphatic tissue consisting mainly of lymphocytes around arteries.
What are the cells in spleen?
The white pulp of the spleen contains typical lymphoid elements, such as plasma cells, lymphocytes, and lymphatic nodules, called follicles in the spleen.
What is spleen connected to?
Although the spleen is connected to the blood vessels of the stomach and pancreas, it is not involved in digestion. The spleen contains two main regions of tissue called white pulp and red pulp.
Why is red pulp called red pulp?
The red pulp of the spleen is composed of connective tissue known also as the cords of Billroth and many splenic sinusoids that are engorged with blood, giving it a red color.
Why is it called white pulp?
White pulp is a histological designation for regions of the spleen (named because it appears whiter than the surrounding red pulp on gross section), that encompasses approximately 25% of splenic tissue. White pulp consists entirely of lymphoid tissue.
Can you live without a spleen?
The spleen is a fist-sized organ in the upper left side of your abdomen, next to your stomach and behind your left ribs. It's an important part of your immune system, but you can survive without it. This is because the liver can take over many of the spleen's functions.
What function occurs in white pulp of the spleen?
There two main types of tissue in the spleen are specialised for its two main functions: White pulp contains lymphoid aggregations, mostly lymphocytes, and macrophages which are arranged around the arteries. The lymphocytes are both T (mainly T-helper) and B-cells.
Does all blood flow through spleen?
Blood flow through the spleen is very high, about 5-10% of the cardiac output and 150 mL/min (ranging from 100 to 1200 mL/min) in the resting state.
Which of the following is not a function of spleen?
The answer is c. Monitor blood flow. The main function of the spleen is to filter the blood.
