Thymus

The origin of T and B lymphocytes is through the lymphoid progenitors derived from the pluripotent stem cells within the bone marrow. Differentiation of cells that leave the bone marrow and proceed to the thymus include T lymphocytes (TL), as mature T lymphocytes will leave the thymus. Differentiation of cells that remain within the bone marrow include B lymphocytes (BL), as mature B lymphocytes leave the bone marrow and go to the secondary lymphoid organs. The production of BL begins in the…

“It absorbs fats and fat-soluble vitamins from the digestive system and delivers these nutrients to the cells that only require fats” (LymphNotes.com, 2012). The organs that are involved in the lymphatic system are the lymph nodes, tonsils, thymus and spleen. The lymphatic system manufactures proteins called antibodies. These antibodies are responsible for the producing a reaction when an invasion of a foreign substance, the antibody formation begins when an antigen stimulates specialized…

rather they are the defenses humans are born with while specific defenses are acquired throughout our lifetime. The immune system is also meant to destroy any hazardous cells like any infected with a virus or any cancerous cells. It is composed of the thymus, the spleen, the lymph nodes along with a variety of cells like leukocytes and antibodies. The immune system provides immunity against…

The Endocrine System controls bodily functions that tend to occur over a long time. Taking a similar role to the nervous system to keep the body in a state of homeostasis. Through the use of a negative feedback loop the Endocrine system insures the proper amount of hormone is in the body at any given time. These hormones serve functions from growth to balancing ion levels in the body. The Endocrine system is specifically down to the hormone meant for homeostasis. The Endocrine System is…

When comparing the human skeleton and the avian skeleton, there are many differences and similarities between the two. These differences and similarities are demonstrated very prominently in the shoulder girdle and the pelvic girdle. For example, in humans, the clavicle and the sternum articulate directly with each other, while in the avian skeleton, they do not. The clavicles in the human skeleton act as struts for the shoulder and allow the arm to move with the maximum range of movement by…

1. Definition of Asthma: Asthma is one of the most common type of chronic obstructive pulmonary disease (COPD). A COPD is a type of disease or disorder to which the airway is affected and causes breathing to be slowed or forced. Asthma is a type of COPD that causes the airway to become inflamed and to be hypertensive (increased pressures in the blood vessels in the airway) due to any internal or external stimuli. The system that is closely associated with asthma is the respiratory system. The…

For example, the thymus was found to be two times as large in breastfed infants compared to formula fed infants at four months. The size difference could also be seen at the ten month mark (Ochert, 2010). “There is even some evidence that that breast milk may enhance cognitive…

Germ free animal studies show that beings lacking a microbiome have underdeveloped immune systems (7). Germ free animals have noticeable defects in their spleen, thymus, lymph nodes, and other lymphoid tissues (1). The introduction of commensal microorganisms have shown increased helper T cell levels, induced immunoglobulin A antibody production, and development of organized lymphoid tissues of previously uncolonized…

The Sci-Fi story I will be writing about is going to be about space mission to a habitable extrasolar planet. It will be based centuries into the future when technology has improved to the point that our human race can visit planets light years away. Of course there are still effects of long-term space travel on the human body, but the technology and research will be more advanced during the time period of my story. The mission is going to consist of highly trained astronauts and the most…

carcinogenic or a cancer-causing item, some lead to nervous system damage and harm a person’s ability to think, feel, and react. Various other contaminants cause more direct damage to certain organs like changing a person’s skin color or texture, causing thymus gland problems, liver and kidney problems, blood problems, cataracts, and even stomach and intestinal problems. Some may have an effect a person’s reproductive system or give a person anemia, a sickness that means a person has an iron…