| Term: | thymus neutrophil |
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| Note: | This page represents a term created by the combination ("post-composition") of two ontology terms. For more information on the individual terms, click the hyperlinked name. |
| Name: | thymus |
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| Synonyms: | |
| Definition: | Paired organ where maturation of T-lymphocytes occurs. The adult thymus located on the dorsomedial aspect of the branchial cavity above the third pharyngeal cartilage. The thymus undergoes a period of rapid growth beginning at about the third week and continuing for several more weeks. Accompanying this growth is a dramatic change in the shape of the thymus. It is ovoid initially and then starts to grow dorsally along the skull, forming a characteristic protrusion. During this growth period the adult pattern of rag1-positive cortex and rag1-negative medulla becomes established. The protrusions diminish with age and the thymus gradually shrinks; at two years, the thymus is again confined to the pharynx with minimal if any protrusion. |
| Ontology: | Anatomy Ontology [ZFA:0001078] |
| Name: | neutrophil |
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| Synonyms: | neutrocyte, neutrophil leucocyte, neutrophil leukocyte, neutrophilic leucocyte, neutrophilic leukocyte, PMN, polymorphonuclear leucocyte, polymorphonuclear leukocyte, polymorphonuclear neutrophil, polynuclear neutrophilic leucocyte, polynuclear neutrophilic leukocyte |
| Definition: | Any of the immature or mature forms of a granular leukocyte that in its mature form has a nucleus with three to five lobes connected by slender threads of chromatin, and cytoplasm containing fine inconspicuous granules and stainable by neutral dyes. |
| Ontology: | Anatomy Ontology [ZFA:0009327] |