Major endocrine glands and their specialised cells Flashcards
What is an endocrine organ?
Makes hormones that are released into the blood and travel to tissues and organs all over the body
What do exocrine organs do?
Secrete hormones to outside of body
Where is the pituitary gland found?
Hypophyseal fossa of sella turcica of sphenoid bone
How is pituitary attached to hypothalamus?
Stalk called infundibulum
What is diabetes inspidius caused by?
Deficiency of vasopressin
What is acromegaly caused by?
Excess of GH in childhood
What is hypothyroidism caused by?
Deficiency of TSH
What is hyperpituitarism caused by?
Over secretion of thyroid hormones
What is panhypopituitarism caused by?
Decreased secretion of most hormones from pituitary
Where is thyroid located?
C5-T1 vertebrae
What does isthmus do?
Unites two thyroid gland lobes
What does external carotid artery supply?
Superior thyroid Ascending pharyngeal Lingual Facial Occipital Posterior auricular Maxillary Superficial temporal
Where is venous plexus?
Thyroid and anterior trachea
What does superior thyroid veins do?
Accompany superior arteries to IJV
What des middle thyroid veins do?
Run parallel to inferior arteries to IJV
What do inferior thyroid veins do?
Independent to brachiocephalic veins
Where do pretracheal, prelaryngeal and pretracheal nodes drain to?
Superior and inferior deep cervical nodes, brachiocephalic lymph nodes and thoracic duct
Nerves in thyroid gland
Superior, middle ,inferior cervical ganglia, via cardiac, superior and inferior plexuses which accompany arteries