Pituitary Gland Histology

Thyroid Factor

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Figure 1-55

Thyroid Gland Follicles Cuboidal epithelium surrounds endocrine follicles of the thyroid gland, the only gland that stores substantial amounts of its own hormone. (X100)

Thyroid follicle

Cuboidal cells Extrafollicular cells Colloid

Figure 1-55

Thyroid Gland Follicles Cuboidal epithelium surrounds endocrine follicles of the thyroid gland, the only gland that stores substantial amounts of its own hormone. (X100)

Thyroid follicle

Cuboidal cells Extrafollicular cells Colloid

Thyroid FollicleHistology Posterior Pituitary Gland

Histology

Pituitary Gland Histology

Figure 1-57a

Pituitary Gland The pituitary gland consists of two components: the posterior component, or neurohypophysis (light stain), consists of mainly nervous tissue, whereas the anterior component, or adenohypophysis (dark stain) consists of a glandular epithelium. (X10)

Cleft

Neurohypophysis Adenohypophysis Pituitary gland

Figure 1-57a

Pituitary Gland The pituitary gland consists of two components: the posterior component, or neurohypophysis (light stain), consists of mainly nervous tissue, whereas the anterior component, or adenohypophysis (dark stain) consists of a glandular epithelium. (X10)

Cleft

Neurohypophysis Adenohypophysis Pituitary gland

Adenohypophysis And Neurohypophysis

Cleft

Adenohypophysis Neurohypophysis

Figure 1-57b

Pituitary Gland The cleft between the neurohypophysis and adenohypophysis is visible in this view of the pituitary gland. (X100)

Cleft

Adenohypophysis Neurohypophysis

Alpha Beta Cells Pancreas

Figure 1-58

Pancreas The pancreatic islet of Langerhans cells form the endocrine portion of the pancreas. Alpha cells secrete glucagon, beta cells secrete insulin, and delta cells secrete somatostatin. The exocrine portion of the pancreas secretes digestive enzymes through a series of ducts.

Islet of Langerhans Exocrine cells of pancreas

Figure 1-58

Pancreas The pancreatic islet of Langerhans cells form the endocrine portion of the pancreas. Alpha cells secrete glucagon, beta cells secrete insulin, and delta cells secrete somatostatin. The exocrine portion of the pancreas secretes digestive enzymes through a series of ducts.

Islet of Langerhans Exocrine cells of pancreas

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Diabetes 2

Diabetes is a disease that affects the way your body uses food. Normally, your body converts sugars, starches and other foods into a form of sugar called glucose. Your body uses glucose for fuel. The cells receive the glucose through the bloodstream. They then use insulin a hormone made by the pancreas to absorb the glucose, convert it into energy, and either use it or store it for later use. Learn more...

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Responses

  • pasqualina baresi
    What surrounds colloid?
    8 years ago
  • thomas
    When staining the pancreas which is the alpha cells and which are the beta cells?
    7 years ago
  • abbie
    How to distinguish between alpha and beta cells in pancreas?
    7 years ago

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