Pat:
Your book may be old, but this is still current teaching.
 This was a question on my anatomy test this week. We are being taught  that 
neurosecretory cells in the hypothalamus secrete factors that regulate the  
hormones of the anterior pituitary. The factors are carried by the hypophyseal  
portal vein system to the anterior pituitary into a capillary bed. 
TSHreleasing  factor acts on the  thyrotropic cells of the endocrine tissue in the  
anterior pituitary telling it to release thyroid stimulating hormone. TSH ,  using 
the capillary bed system, then enters general circulation, reaches it  target 
organ, the thyroid, and stimulates the production of thyroid hormones T3  and 
T4. 
I really am enjoying a deeper understanding of the physiology and applying  
it to lactation.
 
Sincerely,
Tricia Hunt , IBCLC, LLL Leader, Nursing School Student, and mother to  three 
Becca, Grace, and Claire.

Date:    Fri, 25 Feb 2005 19:45:13 -0500
From:   patyoungz <[log in to unmask]>
Subject: Re: hormones of  lactation

My book says TSH comes from Ant. Pituitary and the rate of  release of TSH is
regulated by a substance from the hypothalmus. But it's  an old book :-) Pat
in SNJ


 

             ***********************************************

To temporarily stop your subscription: set lactnet nomail
To start it again: set lactnet mail (or digest)
To unsubscribe: unsubscribe lactnet
All commands go to [log in to unmask]

The LACTNET mailing list is powered by L-Soft's renowned
LISTSERV(R) list management software together with L-Soft's LSMTP(R)
mailer for lightning fast mail delivery. For more information, go to:
http://www.lsoft.com/LISTSERV-powered.html