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Saturday, August 1, 2020 | History

2 edition of ultrastructure of the thyroid gland of the pigeon (Columa livia L). found in the catalog.

ultrastructure of the thyroid gland of the pigeon (Columa livia L).

John Cameron Lewis

ultrastructure of the thyroid gland of the pigeon (Columa livia L).

by John Cameron Lewis

  • 102 Want to read
  • 21 Currently reading

Published .
Written in English


Edition Notes

Thesis (Ph. D.)--The Queen"s University of Belfast, 1966.

The Physical Object
Pagination2 v
ID Numbers
Open LibraryOL19928259M

  Histology of thyroid gland 1. Histological study of Thyroid gland - Asst Prof r Zoology(SET Life sciences) 2. Introduction Thyroid consist of two lateral lobes and the connecting part called isthmus. Largest gland in body. Endodermal in origin. The thyroid gland is a crucial hormonal gland that plays an important role in growth and development, metabolism and regulating several functions of the human body such as temperature and calcium balance. It constantly secretes, stores and releases multiple hormones, collectively referred to .

Thyroid testing is controversial in birds. The thyroid test, T4 that is routinely run on birds is a RIA test, which is primarily used for canine and feline testing. Unfortunately, since the normal thyroid levels for avian species are so much lower than those found in dogs and cats; the test is not going to be the most accurate for birds. Anatomy of the Thyroid Gland See online here The thyroid gland is one of the largest and actively functioning endocrine glands. It is a highly vascular, brownish-red gland located in the visceral compartment of the anterior part of the neck, spanning between the C5 and T1 vertebrae.

The book THYROID POWER, by Drs Richard and Karilee Shames, MD/PhD, is the best thyroid book I've ever read for laypeople. Lots of info, east to understand, and lots of references. My email, if you need it, is [email protected] God bless!! Embryology and development First endocrine gland to appear in embryonic development begins to develop ~24 days in the thyroid diverticulum descends into the neck and passes anteriorly to hyoid and laryngeal cartilages for a time is connected to tongue by thyroglossal duct assumes definitive shape and final location by 7 weeks gestation, andFile Size: KB.


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Ultrastructure of the thyroid gland of the pigeon (Columa livia L) by John Cameron Lewis Download PDF EPUB FB2

Ultrastructure of the Thyroid Gland: Medicine & Health Science Books @ ed by: The thyroid, or thyroid gland, is an endocrine gland in the neck consisting of two connected lower two thirds of the lobes are connected by a thin band of tissue called the thyroid isthmus.

The thyroid is located at the front of the neck, below the Adam's copically, the functional unit of the thyroid gland is the spherical thyroid follicle, lined with follicular cells Artery: Superior, Inferior thyroid arteries.

This, the ultrastructure of the rat thyroid gland at 18 months following the day feeding of photomirex { ppm) or mirex { ppm) is described in this report. Photomirex at 5 ppm produced severe changes in the follicular cells while similar cells in the rats fed 5 ppm mirex were virtually by: 8.

In chiropterans, thyroid gland plays vital role during initial growth phase of life and in mobilizing the energy to overcome stress of puberty, pregnancy and lactation. Ultrastructural observation of the thyroid gland of hipposiderid bat Hipposideros lankadiva which undergoes the phenomenon of embryonic diapauses confirms the important role played by thyroid gland during : Emma R.

Seraphim. Thyroid gland histology. Author: Lorenzo Crumbie MBBS, BSc • Reviewer: Dimitrios Mytilinaios MD, PhD • Last reviewed: The thyroid gland is a bilobular endocrine gland that is found in the neck, anterior and inferior to the y, the gland appears brownish-red and the left and right lobes are connected by an isthmus.

C-cells or parafollicular cells of the thyroid gland, named after their major secretory product (calcitonin), are located either within the thyroid follicles between the basal regions of the follicular cells and the basement membrane of the follicle, or in an interfollicular location.

In addition to calcitonin, C-cells contain a variety of other peptides, including somatostatin and bombesin. Thyroid specimens collected from different gestational age ( weeks) A-Normal Thyroid gland, B-Thyroid isolated lobes (Isthmus absent), C-Small Thyroid gland, DPresence of Pyramidal lobe, E.

The ultrastructure of rat thyroid glands under experimental conditions in organ culture. Young BA, Baker TG. A technique has been described which permits the maintenance for up to 6 days in organ culture of explanted thyroid by: 9.

IGBOKWE, C. O.; EZEASOR, D. & UMAR, M. Ultrastructure of the thyroid gland in adult West African dwarf goat (Capra hircus). Int. Morphol., 33(2), SUMMARY: The present study examined ultrastructure of the thyroid gland of adult West African Dwarf (WAD) goat in order to further.

Anat Rec. Sep;(1) Ultrastructure of the thyroid gland of the cream hamster. Nève P, Wollman SH. PMID: [PubMed - indexed for MEDLINE]Cited by: Summary. In an investigation of autoimmune thyroiditis, two cases of chronic asymptomatic thyroiditis, two cases of nodular goitre with focal thyroiditis and two cases of Hashimoto goitre were studied with the electron by: The thyroid is a small gland, measuring about 2 inches (5 centimeters) across, that lies just under the skin below the Adam’s apple in the neck.

The two halves (lobes) of the gland are connected in the middle (called the isthmus), giving the thyroid gland the shape of a bow tie. Normally, the thyroid gland cannot be seen and can barely be felt. Autoimmune disorders of the thyroid gland can stimulate overproduction of thyroid hormones (thyrotoxicosis) or cause glandular destruction and hormone deficiency (hypothyroidism).

In addition, benign nodules and various forms of thyroid cancer are relatively common and amenable to detection by physical examination. Thyroid Gland Gland makes hormones to regulate body and organs *Hormones are chemical messengers to tell the body what to do Help control body temperature Helps body make energy Helps control organ function Weighs one ounce.

Picture: Thyroid Gland. The thyroid gland produces the hormones L-thyroxine (T4) and L-triiodothyronine (T3), which regulate metabolic body processes, cellular respiration. The thyroid gland is a small organ located in the front of your neck.

It has a relatively simple structure, yet has a complex function in regulating the metabolism of your body. This article will take a look at both the structure and function of the thyroid gland.

The glands are located in the neck region. Thyroid hyperplasia has been observed in many species of birds, including pigeons, canaries, budgerigars, and wild birds. It is the most common disease of the thyroid gland in the budgerigar. Several conditions associated with damage to the thyroid gland result in goiter.

The thyroid gland of animals is a bilobed structure that overlays the trachea at a point just below the larynx. Anatomical variations of the gland are quite marked between species and, to some extent, within a given species. The isthmus connecting the two lobes of the thyroid is the region that varies most markedly between by: 3.

Thyroid®, the Association’s official monthly journal, is a peer-reviewed forum for topics ranging from the molecular biology of the thyroid gland to clinical management of thyroid disorders.

All Association members receive a subscription to Thyroid®. Please send editorial questions to Dr. Kebebew at [email protected] Editorial Board.

The Avian Thyroid Gland Article Literature Review (PDF Available) in Veterinary Clinics of North America Exotic Animal Practice 11(1), v February with 4, Reads. A brief description of the Anatomy of Thyroid & Parathyroid glands with respect to their location, secretions, blood supply, nerve supply, and clinical anatomy Below is the list of some of the.

The gland may enlarge in some normal conditions like menstruation and the neck muscles, the thyroid is covered anteriorly by the strap (or infrahyoid) muscles and by the sternocleidomastoid muscles. The infrahyoid muscles (strap muscles) are the sternohyoid, sternothyroid, thyrohyoid and omohyoid.

The gland is located within the visceral compartment of the neck, along with .The thyroid gland (glandula thyroidea) is an unpaired organ located in the anterior region of the neck at the level of the larynx and the upper part of the trachea.

The gland consists of two parts - the right (lobus dexter) and left (lobus sinister), connected by a narrow isthmus. The thyroid gland is rather superficial.