2. Lymphatic capillaries are closed at one end, have endothelial cells loosely overlapped, and allows bacteria and cells to enter to lymphatic capillary. In cardiovascular capillaries it contains tight junctions and the purpose is to exchange in the lungs, kidneys, liver, spleen and other organs.
3. The skin has tough keratin which is a tough protein and a hard defense against pathogens to get passed into the skin. Pathogens are attractive to moist areas and the skin needs to be dry and nutrient-poor. A defense of neutrophils are proteins that attack microbes and the lactic acid from perspiration is an antimicrobial defense against pathogens. Mucous membranes help trap pathogens with the stickiness of the mucus, the lysozyme in tears and saliva help with the breakdown of specific bacteria. Stomach and vagina acidity both have low ph between two and four including the flushing in the urine, the acid provides a barrier against pathogens.
4. Innate immunity helps provide nonspecific immunity which means it fights a variety of pathogens and a natural killer. Neutrophils ...
... middle of paper ...
...In the end the helper T cells is activated to do cell to cell combat.
10. The process of the clonal selection is when only those B or T cells have been activated by antigen exposure are able to proliferate meaning to clone. After proliferation the clones differentiate and make a bunch of to fight the particular antigen. Once the body has been exposed to the virus the body is trying to find the few T cells and B cells that know how to deal with that certain virus and become activated by cloning instead of having two B and T cells it creates thousands to fight that certain pathogen. This is important to immunity because you want your body to fight this antigen with thousands of B and T cells instead of a few. It will not be able to fight the antigen well with few B and T cells, since the body has been exposed to it you want your body to fight it off and not get sick.
Need Writing Help?
Get feedback on grammar, clarity, concision and logic instantly.Check your paper »
- THE LYMPHATIC SYSTEM Anatomical Location • TONSILS - Are dense compact bodies of lymphoid tissue that are located in the lateral wall of the oropharynx, bounded by the palatoglossal muscle anteriorly and the palatopharyngeus and superior constrictor muscles posteriorly and laterally (Medscape, 2015). • THORCACIC DUCT - Is a tubular structure that can form to be 38-45 cm in length (Healthline, 2014) It originates from the confluence of the right and left lumbar trunks and the intestinal trunk, and ascends the superior and posterior mediastinum between the descending thoracic aorta (to its left) and the azygos vein (to its right).... [tags: Lymphatic system, Lymph, Lymph node]
1083 words (3.1 pages)
- ... The red blood cells purify blood and white blood cells largely composed of lymphocytes determine the response of the immune system to fight foreign substances. While the spleens role is of importance if ruptured it can be removed and other nearby organs will fulfill the roles of the spleen. (Lymph Transport and Immunity, McGraw Hill) The thymus gland is located in the upper thoracic cavity. It is divided in lobules and the thymus glands main function is to help stimulate T lymphocytes also known as killer T cells.... [tags: antigens, body drainage network]
2012 words (5.7 pages)
- ... If the node detects a pathogen, it releases antibodies called lymphocytes (white blood cells) to attack the foreign body and destroy it. The node also screens for cancerous and dead tissue cells picked up by the lymph and destroy these before they too are returned to the circulatory system. Lymph does not have a pumping mechanism like the cardiovascular system but has to rely on other means to circulate it around the lymph vessels. Skeletal muscles press against the vessels and act to squash and squeeze the vessels, pushing it through one way valves.... [tags: lymph, controling and cleaning the body]
882 words (2.5 pages)
- Main Functions of the Skeletal System Depicting its Disorder Introduction: The skeletal system is composed of two hundred and six bones in the human body. Functions such as the tendons, cartilage, and ligaments connect the bones and tissues together. Bone tissues make up about 18% of the weight of the human body. There are two types of tissue inside the bones. They consist of; compact bone and spongy bone. First, compact bone depicts the main shaft of long bones in the human body such as the arms and legs.... [tags: Bone, Skeletal system, Osteoporosis, Skeleton]
726 words (2.1 pages)
- Lymphadenopathy is the term for swelling of the lymph nodes. These are the bean-shaped organs found in the underarm, groin, neck, chest, and abdomen. They act as filters for the lymph fluid as it circulates through the body. The most common site of lymphadenopathy are the cervical lymph nodes found in the neck. The lymphatic system is part of the immune system and functions to fight infections and disease. As infection-fighting cells and fluid build up, the lymph nodes enlarge to many times their normal size.... [tags: Lymphoma, Cancer, Lymph node, Lymphatic system]
972 words (2.8 pages)
- The human body, known for being the most complicated work of cells, tissues, systems and organs is a fascinating masterpiece; inside the human body, we have twelve major organ systems. One of those systems is the Endocrine system; it is responsible for the coordinating many of the bodies’ functions. The endocrine system is made of many organs, one of them is the thyroid gland, it is responsible for manufacturing hormones with help regulate metabolism. Metabolism more commonly known as the chemical process in which an animal or human uses water and food to heal, grow and make energy.... [tags: Thyroid, Hyperthyroidism, Hypothyroidism]
716 words (2 pages)
- I&D Histology Remediation You are tasked with teaching each topic to your classmates. Using your own words, describe your lesson plan, including the details of the contents, what questions might your classmates have, and what the answers would be. Minimum word limit is 1/2 single-spaced page per question. Due date of 12/13 (5:00 p.m.) will be strictly enforced. 1. Organization of the lymphatic organs related to their activities, and the relationship of these organs to other components of the lymphatic system.... [tags: Immune system, Blood, Lymphatic system]
1057 words (3 pages)
- One of the functions of the rotator cuff muscles and the long head of the biceps, is to pull the head of the humerus down from the acromion process, to prevent impingement. Strengthening the subscapularis, infraspinatus and teres minor can help with this function. Dr. Fishman discovered a technique when doing yoga and experienced relief of his own rotator cuff pain. The technique is based on a headstand in yoga and is called the Triangular Forearm Support. Dr. James Mally speculates that the technique trains the subscapularis to take over for the injured supraspinatus.... [tags: Lymphatic system, Lymph, Blood, Blood vessel]
1077 words (3.1 pages)
- The respiratory system has six major areas that works together that allows the body to breathe, prevent choking, and not to allow harmful debris to enter the respiratory system are some of the functions that the respiratory system does. The respiratory system is divided into two regions, the upper and lower respiratory. The upper respiratory consists of the Nose (nasal) and Pharynx while the lower respiratory embodies the rest of the system which includes the Larynx, Trachea, Bronchioles and Lungs.... [tags: Respiratory system, Vertebrate trachea, Mucus]
716 words (2 pages)
- Your immune system is used to fight bacteria and viruses and it helps to keep you healthy. Sometimes your immune system can develop lymph and immune system disorders. What happens is your immune system can become over active or it can become weak chancing your bodies response to bacteria and viruses. If you are born with an immunodeficiency disorder it is called primary immunodeficiency if you develop it later in life it is called acquired immunodeficiency (UOR Medical Center, 2014). When the immune system over reacts it will start to attack and produce antibodies, which results in damaging its own tissues.... [tags: lymp, immune system]
1024 words (2.9 pages)