Pituitary | Endocrine Glands - Histology Guide
Pituitary. The pituitary gland is composed of an anterior and posterior lobes. Anterior Pituitary - contains three divisions; Pars Distalis - comprises most of the anterior lobe (~75%) and contains five types of endocrine cells. Chromophils - stain with H&E and secrete hormones.
Glandular tissue: The Histology Guide - University of Leeds
The glandular epithelial part of the pituitary is also called the adenohypophysis - (anterior pituitary, pars intermedia and pars tuberalis). These different origins are reflected in the histological structure of the anterior and posterior parts of the pituitary.
Development and Microscopic Anatomy of the Pituitary Gland
2024年9月28日 · We provide an overview of the molecular drivers of pituitary organogenesis and illustrate the anatomy and histology of the mature pituitary gland, comprising adenohypophysis (anterior lobe), neurohypophysis (posterior lobe), pars intermedia (intermediate lobe), and infundibulum (pituitary stalk).
Anatomy, Adenohypophysis (Pars Anterior, Anterior Pituitary)
2022年10月3日 · One of the unique glands in the human body is the pituitary gland. The gland is oval and weighs 500 mg. The dimension of the pituitary gland is about 12 mm transverse and 8 mm in anterior-posterior diameter. The pituitary is located in the hypophysial fossa, in a bony depression of the sphenoid bone called the sella turcica.
Adenohypophysis: Anatomy, structure and function | Kenhub
2024年2月19日 · The adenohypophysis forms the anterior portion of the pituitary gland (hypophysis). It is the larger of the two lobes, making up to 75% of the pituitary gland, and is often referred to as simply the anterior pituitary. Along with the neurohypophysis, it sits within the hypophyseal fossa (in the sella turcica) of the sphenoid bone.
Pituitary gland: Anatomy and function of the hypophysis - Kenhub
2023年11月3日 · Anterior part (distal or glandular part) is the part with the strongest secretory activity. It is composed of follicles that vary in size, but essentially contain three types of cells. These cells are classified according to their histological staining and include chromophils (acidophilic and basophilic) and chromophobes.
2024年9月27日 · anterior part (adenohypophysis) arises from embryonic buccal mucosa, whereas the posterior part (neurohypophysis) derives from neural ectoderm. Precise spatial and temporal co-ordination of transcription factor expression in both structures is critical for pituitary gland formation and the
Pituitary gland – Veterinary Histology
The anterior pituitary (adenohypophysis) is composed of two histologically and functionally distinct regions: the pars distalis and the pars intermedia. Brain, rat. The three major regions of the pituitary gland are labeled here: the pars distalis (D, blue), pars intermedia (I, green), and pars nervosa (N, red).
In this chapter, we concentrate on the tissue structure of the pituitary and the relationship of this gland's morphology to its secretions. II. POSTERIOR PITUITARY. The posterior pituitary gland, or neurohypophysis, originates from the infundibulum, which …
The Pituitary Gland: Functional Relationship with the …
2022年4月21日 · ACTH is secreted by the basic cells of the anterior pituitary, the corticotropes that constitute 15–20% of the anterior pituitary cells. The main function of ACTH in the hypothalamus-pituitary-adrenal loop includes regulating the secretion of cortisol from the adrenal gland cortex and other glucocorticoids, mineralocorticoids, and sex steroid ...