| RNAse, RNase | ribonuclease |
|---|---|
| RNS | reference normal serum; repetitive nerve stimulation; ribonuclease |
| rNTP | ribonuclease-5;pr-triphosphate |
| CAM | calf aortic microsome; cell adhesion molecule; cell-associating molecule; chorioallantoic membrane; ... |
| CEHC | calf embryonic heart cell |
| calf | Synonym: sural region. 2. A young bovine animal, male or female. Origin: Gael. Kalpa (05 Mar 2000) |
|---|---|
| calf-bone | Synonym: fibula. 2. Bone from a calf (young cow) used in orthopaedic reconstruction. (05 Mar 2000) |
| calf diphtheria | A necrotic oropharyngolaryngitis of calves associated with Fusobacterium necrophorum infection that may spread to the lungs. (05 Mar 2000) |
| calf pump | Muscular activity of calf that promotes venous flow towards the heart. (05 Mar 2000) |
| gnome's calf | An obsolete term denoting the very full rounded calf occurring in pseudohypertrophic muscular dystrophy affecting the gastrocnemius muscles. (05 Mar 2000) |
| congenital aplasia of thymus | diGeorge syndrome |
| cortex of thymus | The outer part of a lobule of the thymus; it surrounds the medulla and is composed of masses of closely packed lymphocytes. (05 Mar 2000) |
| sea calf | <zoology> The common seal. Source: Websters Dictionary (01 Mar 1998) |
| hypoplasia of the thymus and parathyroids | Also known as the digeorge syndrome (dgs), this disorder is characterised by (1) low blood calcium levels (hypocalcaemia) due to underdevelopment (hypoplasia) of the parathyroid glands needed to control calcium; (2) underdevelopment (hypoplasia) of the thymus, an organ behind the breastbone in which lymphocytes mature and multiply; and (3) defects of the outflow tracts from the heart. most cases of dgs are due to a microdeletion in chromosome band 22q11.2. A small number of cases have defects in other chromosomes, notably 10p13. Named after the american paediatric endocrinologist angelo digeorge. Another name for dgs is the third and fourth pharyngeal pouch syndrome (since the faulty structures in dgs are embryologically derived from the third and fourth pharyngeal pouches). (12 Dec 1998) |
| Nebraska calf scours virus | The bovine rotavirus. See: rotavirus. (05 Mar 2000) |
| neonatal calf diarrhoea virus | One of two virus's causing neonatal calf diarrhoea; a reovirus-like virus is associated with disease in newborn calves, and a coronavirus is associated with disease in calves over 5 days of age. (05 Mar 2000) |
| thymus | <anatomy> The lymphoid organ in which T lymphocytes are educated, mature and multiply. It is composed of stroma (thymic epithelium) and lymphocytes, almost entirely of the T-cell lineage. In mammals the thymus is just anterior to the heart within the rib cage, in other vertebrates in rather undefined regions of the neck or within the gill chamber in teleost fish. The thymus regresses as the animal matures. (18 Nov 1997) |
| thymus and parathyroids, hypoplasia of | See third and fourth pharyngeal pouch syndrome. (12 Dec 1998) |
| thymus-dependent zone | <anatomy> Mid cortical region of lymph node, area that is particularly depleted of T lymphocytes in thymectomised animals and is referred to as the thymus dependent area. (18 Nov 1997) |
| thymus derived lymphocyte | <haematology, immunology> A class of lymphocytes, so called because they are derived from the thymus and have been through thymic processing. Involved primarily in controlling cell-mediated immune reactions and in the control of B-cell development. The T-cells coordinate the immune system by secreting lymphokine hormones. There are 3 fundamentally different types of t cells : helper, killer, and suppressor. Each has many subdivisions. T-cells are also called t lymphocytes. They bear T-cell antigen receptors (CD3) and lack Fc or C3b receptors. Major T-cell subsets are CD4 (mainly helper cells) and CD8 (mostly cytotoxic or suppressor T-cells). Uncontrolled proliferation of this type of cell gives rise to T-cell leukaemia/lymphoma. (21 Jun 1999) |