PITUITARY GLANDPeriod 1 HAP Ryan Mason, Jennifer Stern & Sachie Kakehi

Function Of Endocrine System Function: A group of glands that secrete

various hormones that produce/regulate/stimulate growth/development and reproduction

Importance: Without it—no development or changes in bodies and normal body functions disrupted

Anterior Pituitary Posterior Pituitary

Location

Location

Location

In Relation to Important Glands

Function Nickname: Master Gland Hormones influence: growth, sexual

development, skin pigmentation, thyroid function, and adrenocortical function

Directs organs and endocrine glands to suppress or induce hormone production

Production of hormones that act on other endocrine glands, the muscles, and the kidneys

Storage of hormones produced by the hypothalamus

Function“Master Gland”

Hormones the Gland in responsible For

Thyroid Stimulating Hormone (TSH) Oxytocin Vasopressin Numerous Sex Hormones

The Pituitary gland is also responsible for producing hormones that aid in growth, maturation, and sex characteristics

Thyroid stimulating hormone

Stimulates the thyroid to produce thyroxin, by binding to the G-protein-coupled receptors on the surface of the thyroid cells

Vasopressin

Collects in the kidneys to stimulate reabsorption of water into the blood. Acts to reduce the volume of urine formed

“antidiuretic hormone” (ADH)

Oxytocin

Acts on some smooth muscle Stimulates the contractions of the uterus at birth Stimulates the release of milk in mothers

Enhances bonding of males and females, mother and newborn, increases trust

Diseases -Acromegaly Hormonal disorder that develops when

pituitary gland produces too much growth hormone during adulthood

Causes Growth Hormone produces too much

Insulin-like growth factor-I Symptoms

Bone increases size, Coarse oily thickened skin, Headaches, impaired vision, fatigue and muscle weakness

Treatment Surgery, medication, radiation (reduce

GH levels)

Diseases –Pituitary Tumor Tumors in your pituitary gland that

can higher or lower the production of hormones

Causes Unknown

Symptoms Headaches, vision loss, nausea &

vomiting, weakness, less frequent/ no menstrual periods, body hair loss, sexual dysfunction, increased urination, unintended weight loss/ gain

Treatment Various options

surgery

Interesting Facts!Did you know???

The pituitary gland is about the size of a pea

Richard Kiel who played in one of the James Bond movies had Acromegaly

Once acromegaly is treated with surgery, your feet, hand and face may shrink a little but your body will not go back to the regular size

Citations Human Hormone. N.p., 19 Apr. 2012. Web. 10 Mar. 2013.

<http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/H/HormoneTable.html>.

Mayo Clinic Staff. "Acromegaly." Mayo Clinic. N.p., 5 Feb. 2013. Web. 10 Mar. 2013. <http://www.mayoclinic.com/health/acromegaly/DS00478>.

- - -. "Pituitary Tumors." Mayo Clinic. N.p., 14 Nov. 2012. Web. 10 Mar. 2013. <http://www.mayoclinic.com/health/pituitary-tumors/DS00533/DSECTION=causes>.

"Pituitary Functions & Hormones." UCLA. N.p., n.d. Web. 10 Mar. 2013. <http://neurosurgery.ucla.edu/body.cfm?id=432>.

The Pituitary Gland. N.p., n.d. Web. 10 Mar. 2013. <http://thepituitaryglandcasestudy.weebly.com/interesting-facts.html>.

Shmaefsky, Brian R. Applied Anatomy & Physiology A Case Study Approach. N.p.: Paradigm, 2007. Print.

CitationsPictures http://www.aahs.org/aamcmag/homepage.php?id=29 http://heroeswiki.com/User:Vampirate68/Metal_Mouth http://endocrinesurgery.ucla.edu/patient_education_adm_tst_tsh_t

est.html http://www.emedicinehealth.com/thyroid_problems/article_em.ht

m

http://www.cvphysiology.com/Blood%20Pressure/BP016.htm http://animalsciences.missouri.edu/reprod/notes/endocrin/oxytoci

n.htm

http://obgyn.uams.edu/?id=6377&sid=19

http://faculty.stcc.edu/AandP/AP/AP2pages/Units14to17/endocrine/hypothal.htm

http://www.trinity.edu/lespey/biol3449/lectures/lect7/lect7.htm http://www.centerforhealthandhealing.org/what-are-hormones/ind

ex.htm

Concept Checks1. Which two portions are the pituitary gland split in?

A. Anterior and posteriorB. Medial and LateralC. Up and Down

2. Which hormone reduces the volume of urine formed?A. Thyroid Stimulating hormoneB. OxytocinC. Vasopressin

3. Which disease produces too much growth hormone during adulthood?

A. AcromegalyB. HypopituaritismC. Pituitary Tumor

4. Why is the Pituitary Gland called the Master Gland?It is because the pituitary gland produces many numerous hormones which control most of the other endocrine glands.