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Histology Endocrine System
Terms in this set (63)
What are the secreting cell types in the Adenohypohysis of the Pituitary gland?
Acidophils & Basophils
Another term for Adenohypohpysis is?
Anterior Pituitary Gland
Another term for Neurohypophysis is?
Posterior Pituitary Gland
What are the two secreting types of Acidophils?
Somatotrophs & Lactotrophs
What hormone do Somatotrophs secrete?
Growth Hormone (GH)
What is an inhibitory (-) controlling factor for Somatotrophs?
What is an excitatory (+) controlling factor for Somatotrophs?
Growth hormone releasing factor (GNRH)
What hormone is produced and secreted by Lactotrophs?
What is an excitatory (+) controlling factor for Lactotrophs?
Prolactin - Releasing hormone (PRH)
What is an inhibitory (-) controlling factor for Lactotrophs?
What color do Acidophils stain?
What color do basophils stain?
What are the three secreting types for Basophils?
Corticotrophs, Gonadotrophs, & Thyrotrophs
What hormones do Corticotrophs produce?
Adrenocorticotropic Hormone (ACTH)
What is the (+) controlling factor for Corticotrophs?
Corticotropin releasing hormone (CRH)
What two hormones do Gonadotrophs produce?
Lutenizing hormone (LH) & Follicle stimulating hormone (FSH)
What is the (+) controlling factor for Gonadotrophs?
Gonadotropin Releasing Hormone (GNRH)
What hormone do thyrotrophs produce?
Thyroid Stimulating Hormone (TSH)
What is the (+) controlling factor for Thryrotrophs?
Throtropin releasing horomone (TRH)
Signaling type where the cell excretes its extracellular signal and the signal acts on receptors in the same cell's cell membrane?
The signaling type where a secretory cell releases its extracellular signal and it acts upon an adjacent cell's membrane bound receptors?
Signaling type where extracellular signal is excreted into the blood (Hormone) and acts upon the membrane bound receptor of a distant target cell?
What three regions make up the Adenohypophysis?
Pars tuberalis, Pars distalis, & Pars intermedia
This is derived from an infundibular outgrowth from the floor of the diencephalon?
Posterior Pituitary (Neurohypophysis)
This derived from an invagination (Rathke's pouch) of the ectodermal lining of the future oral cavity?
Anterior Pituitary (Adenophypophysis)
Hormones are or are not stored in vesicles?
Hormones are released as they are made. This is known as?
What 3 cell types are found in the Adenophypophysis?
Acidophils, Basophils, & Chromophobes
In the Pars Distalis dark secretory granules in the acidophils and baso phils are released into 1. _______________ in response to 2. ____________________ from the 3. ______________________.
2. Releasing Factors
Anterior Pituitary Hormone secretion is regulated by?
Small (parvocellular) hypothalamic neurons
Regulation of pituitary hormone secretion is tightly regulated by target organs utilizing a ________________ _________________ system.
Condition caused by the hypersecretion of growth hormone before puberty?
Prolactin is unique in the pituitary hormones because it secretion is mainly regulated by?
Inhibition via Hypothalamic dopamine
Prolactin + 1. _______________ & _______________ intiates lactation?
1. Estradiol & Progesterone
Prolactin + __________ = maintenance of lactation
What is the major stimulus of Prolactin & Oxytocin during lactation?
Excess Prolactin secretion is called?
Hyperlactinemia can become ________________ which causes reversible infertility
What two leptomeninges cover the pineal gland?
Pia mater & arachnoidea
The pineal gland develops from?
In the Pineal gland the pinealocytes produce & secrete?
Large calcified structure found in the Pineal Gland?
Corpota arenacea (Brain Sand)
Pineal gland transduces neurally encoded information about the ambient luminosity (Light Levels) in to the humoral signal?
Tyrptophan is precursor of _______________ which is a precursor of Melatonin.
In the retina a subset of ganglion cells (Intrinsically photosensitive retinal ganglion cells) detect luminosity and convey this information to the neurons in the 1. ________________ through the 2. _______________.
1. Suprachiasmatic Nuclues (SCN)
2. Retino- hypothalamic pathway (RHT)
Due to the positions of the kidney the Left suprarenal gland is higher that the right. The glands are located?
On top of each kidney
The adrenal cortex is derived from the _______________ of the posterior abdominal wall.
The adrenal Medulla has three layers of steroid secreting cells?
Zona glomerulosa (outer)
Zona fasciclata (Middle)
Zona Reticularis (Inner)
The adrenal gland contains 2 glands?
Cortex and the Medulla
The adrenal medulla is derived from the?
It consist of modified sympathetic ganglion cells called?
The adrenal medulla secretes ________________ into the bloodstream.
The adrenal medulla is innervated by?
Sympathetic preganglcionic nerves (T5-L2)
Blood supply of both the adrenal cortex and medulla. There are 1. _______ suprarenal arteries. It contains 2. _____________ cortical capillaries. And also has one 3. ___________________.
3. Suprarenal Vein
The adrenal gland is surrounded by a capsule composed of?
Dense Irregular Connective Tissue
The stroma of the adrenal glands contains a rish network of _________________ that support the secretory cells of the entire gland.
Examples of catecholamines produced by the chromaffin cells of the adrenal medulla?
Epinepherine and Norepinepherine
The ZG layer of the adrenal cortex secretes?
The ZF of the adrenal cortex secretes?
The ZR of the adrenal cortex secretes?
Precursor androgens: dehydroepiandrosterone (DHEA), DHEA- sulfate, androstenedione from cholesterol
A severe adrenocotical insufficiency when tauma or illness increases demand for adrenocoritcal hormones in a patient with existing adrenal insufficiency?
Chromaffin cells are often what color due to the secretory vesicles filled with catecholamines?
The throid gland
Sets with similar terms
Endocrine System Review Crossword - 2
Endocrine System - Anatomy Exam 3