1. Describe the differences between cell-mediated immunity and antibody-mediated immunity.
The body has two different responses to foreign invasions. The Humoral or antibody immune response uses the b cells to seek out the invader in the lymph or blood. The specific antigen will attach itself to the b cell and create plasma that contains the specific antibodies for the antigen or pathogen. The b cell will continue to create antibodies for the specific antigen or pathogen forever. A cell mediated response is one that involves mostly the T cell to seek out any foreign cell in the body and kill it. Includes cancers, tumors, and transplanted cells.
2. Describe the differences between innate/natural immunity and acquired immunity.
Innate immunity is
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immunity that is already present in the body at birth passed down from your parents, hence the other term natural immunity. It is your general immune response meaning it is not specific to a certain sickness it provides your basic coverage and uses T cells to fight any foreign invader. Acquired immunity uses the T and B cells to fight off specific foreign invaders like the chicken pox. It cannot be inherited but once it comes into contact with a pathogen or antigen it will remember forever and can become stronger. 3.
What is the antibody-antigen complex (AB-AG)?
Those are the different types of antibodies that control different reactions. For Example which one of them controls inflammation when having an allergic reaction.
4. Describe the roles of the T cells and B cells.
The T cell is the fighter cell or the killer T cell. It seeks out any foreign substance and destroys it.
The b cell is the helper cell it will contact the T cell and can locate a foreign substance, create antibodies to kill it, and also will remember the specific pathogen or antigen forever in case your body ever has to fight it again.
5. Describe one auto-immune disorder (select any autoimmune disorder and describe it).
Hypothyroid is an auto immune disorder is a condition of having an over active thyroid. It is usually hereditary and can be fatal. Some people are on medication and even have to have their thyroid completely removed which in turn requires you to be on medication for the rest of your life or you will die because you can’t live without your thyroid it controls all of your chemical production in the body.
https://www.cliffsnotes.com/study-guides/anatomy-and-physiology/the-immune-system-and-other-body-defenses/humoral-and-cell-mediated-immune-responses
I, myself, have suffered from hypothyroidism since I was 21 years old, and depression during my high school years. This disorder came to us by surprise since nobody in the family has a history of thyroid disorder. The age the disorder came about was probably the most shocking part that left even the doctor questioning the blood tests. But in the end, it was something that was going on inside of me that needed medical attention before it became it worse and symptoms would be more apparent. Such diagnosis has lead me to make certain decisions in my life such as exercising and eating the right
The immune system is made up of a network of cells, tissues, and organs that work together to protect the body, and it defends the body from “foreign invaders.” Immunity can be divided in two three different defenses, and these are defined as first, second and third lines of defense. The first line of defense for the immune system is the primary defense against pathogens entering the body from the surface in order to prevent the start of disease and infection. Some examples of the first line of defense is the skin, protecting the external boundaries of the body, and the mucous membranes, protecting the internal boundaries of the body. Although the skin and mucous membranes work on the internal and external boundaries, they both release chemicals
First I will be discussing about the thyroid gland, so the thyroid gland is a gland in the neck that secretes hormones. These hormones regulate growth and development, and metabolism. The main hormone secreted is Thyroxine. So when a person like Margie is diagnosed with hypothyroidism it means the thyroid gland does not secrete enough hormones. As many females get over the age of 50, they are more at risk of developing hypothyroidism. The symptoms
Hypothyroidism develops when the thyroid gland does not produce enough of certain hormones. (“Hypothyroidism”, n.d.). Hypothyroidism can be broken down even further. The two types of hypothyroidism are congenital hypothyroidism or acquired hypothyroidism. According to Porth 2011, “Congenital hypothyroidism develops prenatally and is present at birth. Acquired hypothyroidism develops later in life because of primary disease of the thyroid gland or secondary to disorders of hypothalamic or pituitary origin.” (p. 786). Some common symptoms include increased sensitivity to cold, dry skin, fatigue, constipation, drowsiness, hypothermia and muscle weakness (“Hypothyroidism”, n.d.).
Graves’ disease is an autoimmune disease that was discovered by Robert Graves in 1835. Graves’ disease is an autoimmune disease in which the body's immune system attacks the thyroid gland and causes hyperthyroidism. Graves’ disease occurs when the antibodies like thyroid-stimulating immunoglobulin and thyrotropin receptor antibodies (TRAbs) attack the thyroid gland as if it were a foreign object or a virus of some sort. This disease is the most common type of hyperthyroidism. Attacking the thyroid gland in such a manner makes it excessively overproduce the hormone thyroxine which controls the body’s metabolic rate. Heightened activity of the thyroid can increase the body’s metabolism by 60% to 100%. (Weeks 34-35).
Today in America thyroid disease is becoming a much larger issue and the worse part of this problem is that many people are not yet diagnosed. This is due to the lack of education and awareness about thyroid disease. There are many different types of diseases but the one that I am passionate about is hypothyroidism. Hypothyroidism, or underactive thyroid is when the thyroid is no longer able to produce triiodothyronine, also known as T3 and thyroxine, also referred to as T4. Some of the symptoms include unexpected weight gain, tiredness, depression, or slow movements and thoughts. Most of the time many people notice the way that their bodies act on what they are feeling to their physicians. Many Americans struggle with this disease that
“Immune Response: MedlinePlus Medical Encyclopedia.” National Library of Medicine - National Institutes of Health. Web. 18 Dec. 2011. .
The thyroid is the energy generator of the body. All of us experience fatigue at some time in our lives because of lack of sleep, overwork, or stress. For individuals with hypothyroidism, fatigue is a way of life. There never seems to be enough energy. But, you don’t have to feel this way. For those who suffer from hypothyroidism, there is HOPE.
The structure and function of our immune systems is a great help for our body to keep all of us healthy. Our immune system has a specific structure that it should maintain. There are also organs that play a major part for the health of our immune system. These organs are called lymphoid organs because of the lymphocytes that inhabit that area. (white blood cells) Bone marrow is also one of the key elements for the immune system, this is where all of our blood cells are being made along with the white blood cells. With the help of the bone marrow, white blood cells are constantly traveling throughout our bodies using the blood cells for help. Another structure that is important for our immune system is lymphoid tissue. Lymphoid tissue acts as a gateway into our bodies that help to prevent incoming germs.
The thyroid gland is found in the front of the neck and produces two main hormones. The hormones are called thuroxine (T4) and Triiodothyronine (T3). Together these hormones regulate the body’s metabolism by increasing energy use in cells, regulate growth and development, help to maintain body temperature and aid in oxygen consumption. These two hormones are regulated by hormones produced by the hypothalamus and pituitary gland. The hypothalamus senses changes in body’s metabolic rate and releases a hormone known as thyropin-releasing hormone (TRH). This hormone then flows through connecting vessels to the pituitary gland which signals it to release another hormone. This hormone is known as thyroid-stimulating hormone (TSH). TSH then makes its way to the bloodstream until it reaches the thyroid where it is then signaled to activate T3 and T4 production [1]. This mechanism is controlled by a negative feedback loop meaning that when there is a sufficient amount of thyroid hormones in the blood stream, this will signal back to stop production of thyroid stimulating hormones. Complications occur when the thyroid hormones keep increasing even though there is already a sufficient amount of T3 and T4 in the blood stream. This process of over expression of thryroid hormones is known as hyperthyroidism. Hyperthyroidism is a general term that includes any disease that has a consequence of an overabundance of thyroid hormones. Hyperthyroidism is a general term but there are many variant diseases that are in the hyperthyroidism category. These diseases include diffuse toxic goiter, Basedow’s disease, thyrotoxicosis, Parry’s and Graves’ disease.
Leukocytes are broken up into two different subunits: phagocytes and lymphocytes. Phagocytes destroy the dangerous organisms. Though the most common type of phagocyte is the neutrophil (which breaks down bacteria), many other cells are known to be phagocytes also.
Among these disorders are hypothyroidism and hyperthyroidism. Hypothyroidism is a disorder in which one is diagnosed for having and underactive thyroid. The probability for women over the age of sixty to develop an underactive thyroid is higher than those of other individuals. If left untreated it can potentially lead to obesity, joint pain, heart disease, and other health complications. On the contrary, hyperthyroidism is a disorder in which a person is diagnosed for having an overactive thyroid. This can cause nervousness and anxiety, hyperactivity, unexplained weight loss, and swelling of the thyroid gland which causes a noticeable lump to form on throat (known as a
Vaccines are a training for your body helping it to learn how to fight disease without actually having the symptoms. Antibodies are created in response to a disease
...ifiable in any patient with the disease, and provides special information associated with staging or anatomic disease extent. The other attribute that make the antigen an ideal tumor cell maker include the fact that it permits for earlier identification of treatment failure resulting in early salvage treatment.
This immunity is dependent upon our body to be exposed to a particular type of pathogen once before. After the exposure, our body’s immune system learns of a way to counteract the foreign substance. The immune system learns the most effective way to counter each antigen that enters and then retains that strategy until the same pathogen attacks on it again. It completely customizes its attack, adapts to new conditions and remembers the information. This why people are given shots of inactivated viruses. When these viruses enter the blood stream, the body thinks that they are harmful pathogens and then develops a way of counteracting to them. After battling these viruses, they remember their form of attack, so in case these same harmful viruses enter the blood stream again, they can deal with them quickly and efficiently. Lymphocytes (T and B cells are required for this immunity). The antibodies IgA are expressed in our body on the mucous surface of the gut. When foreign substances enter, the intestine, they kill those pathogens before they can even grow in the