Flashcards in 3. Pituitary gland Deck (23)
anterior pituitary ( adenohypophysis) is derived from
oral ectoderm ( Rathke pouch)
anterior pituitary ( adenohypophysis( secretes
β subunit determines their hormone specificity
posterior pituitary ( neurohypophysis ) secretes
1. vasopressin ( ADH)
vasopressin and oxytocin are made in .... (exactly )
vasopressin --> supraoptic nuclei of hypothalamus
oxytocin ---> paraventricular nuclei of hypothalamus
vasopressin and oxytocin production and secretion ( where and transportation )
made in hypothalamus ( supraoptic and paraventricular nuclei ) and transported to posterio pituitary via neurophysis
hornone made in paraventricular nuclei of hypothalamus
vasopressin is made in
supraoptic nuclei of hypothalamus
oxytocin is made in
paraventricular nuclei of hypothalamus
foramen cecum is
normal remnant of thyroglossal duct
pyraidal love of thyroid
persistent thyroglossal duct
Melanotropin ( MSH ) is secreted by
intermediate lobe of thyroid
lingual thyroid - management
may result in hypothyroidism if it is the only thyroid tissue present
ACTH and MSH are derivatives of
adenohypophysis cells are divided to ...- what the secrete
basophils : 1. FSH 2. LH 3. ACTH 4. TSH
acidophils : 1. GH 2. PRL
vasopressin va oxytocin accordi ng to hypothalamus
vasopressin --> supraoptic nuclei og hypothalamus
oxytocin ---> paraventricular nuclei of hypothalamus ad
pituitary - embryology
adenohypophysis --> oral ectoderm ( Ratgke pouch)
neurohypophysis --> neuroectoderm
Name the embryologic origins of the anterior and posterior pituitary.
Oral ectoderm (Rathke pouch) and neuroectoderm, respectively
• What hormones does the posterior pituitary secrete? Where are these hormones made, and how are they transported?
Vasopressin (antidiuretic hormone) and oxytocin; made in hypothalamus; shipped to posterior pituitary via carrier proteins (neurophysins)
• Which pituitary hormones have a common α subunit? What is the significance of the β subunit?
Thyroid-stimulating, luteinizing, follicle-stimulating, human chorionic gonadotropin hormones; determines hormone specificity
• Your patient has a tumor in his anterior pituitary gland that affects all hormones produced there. Which hormones would be affected?
Follicle-stimulating (FSH), luteinizing (LH), ACTH, thyroid-stimulating (TSH), Prolactin, growth hormone (GH) (FLAT PiG)
• Which anterior pituitary hormones are secreted from acidophilic cells? Which are secreted from basophilic cells?
Acidophils secrete GH and prolactin; Basophils secrete FSH, LH, ACTH, and TSH (B-FLAT)
• A woman sustains a traumatic brain injury. MRI shows anterior pituitary damage in the intermediate lobe. What hormone dysfunction may occur?
Melanotropin (MSH) is secreted from here, and the patient may have problems with skin pigmentation in the future