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Endocrine System
and Hormone Function, The Major Endocrine Organs, Other Hormone-Producing Tissues and Organs, Developmental Aspects of the Endocrine System
18
Anatomy
12th Grade
01/07/2013

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Term
endocrine system
Definition
body system that includes internal organs that secrete hormones
Term
hormones
Definition
chemical messengers secreted by endocrine glands; responsible for certain regulatory effects on certain parts or organs
Term
steroids
Definition
a specific group of chemical substances including certain hormones and cholesterol
Term
second messenger
Definition
intracellular molecule generated by binding of a chemical to a membrane receptor; mediates intracellular responses
Term
pituitary gland
Definition
the neuroendocrine gland located beneath the brain that serves a variety of functions including regulation of the gonads, thyroid, adrenal cortex, water balance, and lactation
Term
thyroid gland
Definition
one of the largest of the body's endocrine glands; straddles the anterior trachea
Term
parathyroid glands
Definition
small endocrine glands located on the posterior aspect of the thyroid gland
Term
adrenal glands
Definition
hormone-producing glands located superior to the kidneys; each consists of a medulla and cortex areas
Term
thymus gland
Definition
an endocrine gland active in the immune response
Term
pancreas
Definition
gland posterior to the stomach, between the spleen and the duodenum, produces both endocrine and exocrine secretions
Term
ovary
Definition
the female sex organ in which ova are produced
Term
testis
Definition
the male primary sex organ that produces sperm
Term
hypothalamus
Definition
the region of the diencephalon forming the floor of the third ventricle of the brain
Term
tropic hormone
Definition
a hormone that regulates the function of another endocrine organ
Term
parathyroid hormone
Definition
regulates blood calcium level
Term
hormone of pineal body
Definition
melatonin
Term
representative actions of pineal body
Definition
involved in bioi rhythms
Term
pineal body regulated by
Definition
light/dark cycles
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