Endocrine Gen.
The two categories of hormones
What is steroid and non-steroid hormones
This type of gland secretes substances directly into extracellular spaces
What is endocrine glands
This type of hormone can easily diffuse though target cell membrane to alter cellular rxns
What is steroid derived hormones
These hormones are soluble in blood plasma
What is non-steroid derived hormones
PTH increases Ca reabsorption, There are 3 target organs for this hormone.
What is bone, kidneys, and the intestines
The endocrine system consists of 3 main things
What is glands, hormones, and target receptors/ organs
This type of gland has secretory ducts that carry substances directly to specific target
What is exocrine glands
These type of hormones attach to a receptor on the cell membrane to effect its target
What is non-steroid derived hormones
These chemical messengers from endocrine glands travel in the blood
What is hormones
This hormone increases H2O reabsorption
What is ADH
The process of hormones influencing other hormones
What is hormonal stimulation
The process of target cells altering their number of receptors
What is up regulation and down regulation
Initiation of a hormonal response is dependent on 3 things
What is 1)Hormone concentration, 2)Number of target receptors, and 3)Sensitivity between hormone and receptor
These 2 hormones effect metabolic rates
What is T3 and T4
T3 and T4 are released by the Thyroid and their intended target
What is all cells
Neural activity that can influence the release of hormones
What is neural stimulation
Hormones alter cellular rxns in many ways, two of these ways are
What is 1)modify rate of protein synthesis, 2)Alter enzyme activity rates, 3)Alter plasma membrane transport, or 4)Induce secretory activity
Daily Double
This disease effects 9.3% of the U.S. population (29 million people), and indicates dysfunction of the pancreas
What is diabetes
Testosterone and Estrogen are examples of
What is a steroid derived hormone
This hormone can alter the size of the NMJ, increasing excitability of the muscle fiber
What is testosterone
Chemical changes in the blood that can influence the release of hormones
What is humoral stimulation
When non-steroid hormones attach to a target receptor, a response is triggered within the cell
What is enzymatic rxns
Carrier proteins in the blood transport this hormone to its target
What is lipid soluble hormones (steroid derived)
Non-endocrine tissues can release chemicals that act as hormones, these tissues are part of what system
What is the sympathetic nervous system
This hormone's effects will not appear till more than 45 minuets of activity and is triggered by 2 other hormones
What is aldosterone