Chapter 1 Flashcards
Why do we care about endocrinology in animal sciences?
growth and development
improved efficiency of animal production
What is the main purpose of the animal industry?
develop an animal that will grow and reproduce at a fast and economical rate
What is endocrinology?
A sub discipline of the broad field of physiology concerned with hormones.
What are hormones?
chemical messengers that regulate the activity of other cells in the body
Endocrinology is concerned with chemical ____ of the body.
integration
Which two systems are involved in the integration of the body?
endocrine system and nervous system
Aristotle studied the effects of ____ in birds.
castration, it led to different behaviors
In 1849, Berthold recorded the first endocrine experiment leading to the discovery of ____.
testosterone
Testosterone wasn’t obtained in ____ until 1935.
crystalline form
In 1902, Bayliss and Starling found that ___ was released by duodenal mucosa, followed by emptying of acid ingesta from the stomach. Found to be carried to pancreas via circulation and case discharge of pancreatic juices into pancreatic duct.
secretin
The endocrine and nervous system are very important together, but _________
can act separately
The discovery of secretin was the first critical experiment demonstrating __________
existence of a hormone
Starling introduced the term “_____” in 1905.
hormone
_____ is the study of hormones, their receptors, and the intracellular signaling pathways they invoke.
Endocrinology
Endocrine organs are largely or at least famously devoted to _______.
secretion of hormones
