1.A small glandular organ that is situated behind the top of the breastbone, consisting mainly of lymphatic tissue and serving as the site of T cell differentiation. The thymus increases gradually in size and activity until puberty, after which it begins to atrophy. ...
Nonlymphocyte cells play very important site-specific roles in the development of T cells. Epithelial cells are scattered throughout the thymus. Depending on their location, they are known as nurse cells, cortical epithelial cells, or medullary epithelial cells. Macrophage-type cells and interdigit...
T cells gain their name as they mature in the thymus and B cells are so named, as they mature in the bone marrow. This article will describe the anatomy, histology and function of the thymus.Key facts about the thymusTable quiz Location Extends between the thyroid gland (superiorly) and ...
The gland consists of the medulla, the inner layer of cells, and the cortex, an outer denser layer of these cells. A thin dense structure called the capsule encases the thymus and extends into the interior between the lobules. Read Thymus Gland Location, Functions & Histology Lesson ...
Preoperative body computerized tomography (CT) should be of value in depicting the size, extent, and location(s) of the thymus in myasthenic patients undergoing thymectomy. To date, we have been unable to visualize the thymus in three patients with myasthenia gravis using body CT. However, in ...
Thymus Gland Location, Functions & Histology from Chapter 49/ Lesson 12 46K Read about the thymus gland. Learn where the thymus gland is located, what the thymus gland does and how it functions, and the hormones the gland produces.
(peptides and proteins) in tissues, its location, qualitative and quantitative research, called immunohistochemistry (immunohistochemistry) or immunocytochemistry techniques (immunocytochemistry).It combined the specific of immune response with visibility of histochemistry by means of a microscope (including ...
A gland is an organ that produces and releases substances that modify or control other parts of the body (hormones) or have a specific function in its location (like sweat released by sweat glands, saliva secreted by salivary glands, or milk produced by...
their ectopic location, the parathyroid lobes were seemingly functional, asβ-catenin-transgenic mice survived to adulthood without overt evidence of hypo-parathyroidism. The rudimentary thymus present inβ-catenin-transgenic mice expressed lower levels ofFoxn1-transcripts than wild-type controls at E...
and memory B cells in addition to plasma cells. Furthermore, thymic plasma cells produce polyclonal antibodies without somatic hypermutation, indicating they develop via the extra-follicular pathway. Physiologically, thymic-derived IgEs increase the number of mast cells in the gut and skin, which corr...