ENDOCRINE Flashcards
The pituitary, adrenal, parathyroid and pineal glands are examples of _______ endocrine glands
True
What is the endocrine system?
System of ductless glands that secrete hormones into the blood stream and regulate bodily functions
Other organs that contain endocrine tissue include the p_________, gonads, placenta and h________
Pancrease
hypothalamus
Organs that ________ hormones are the adipose cells, thymus and cells in the wall of the small intestine, stomach, kidneys and heart
Secrete
The endocrine system influences activities in the body via ________ transported in the blood
hormones
Exocrine glands are _____-_________ substances
They include sweat, salvia and also pancreatic enzymes
Non-hormonal
Endocrine glands produce _________ and lack ducts - it secretes into the blood stream
Hormones
_________ travel in blood or lymph (endocrine system)
Hormones
Think: endo-homo
__________ are chemicals that exert effects on the same cells that secrete them
Autocrines
P__________ are locally acting chemicals that affect cells other than those that secrete them
Paracrines- they are NOT considered part of the endocrine system
There are two main classes of hormones:
- A_______- amino acid based hormones
- S_________
Amines
Steroids
_______ cells are tissues with receptors for a specific hormone
Target
Hormones act as receptors in one of two ways; depending on their chemical nature and receptor location.
_______________ hormones cannot enter the cell, act on plasma membrane receptors etc
Water soluble hormones
_____ soluble hormones can enter the cell (steroid and thyroid hormones ) and can directly active genes
Lipid
The _______ division (fight or flight) mobilizes the body during activity - during excercise or when threatened
sympathetic
- Hormone (1st messenger) binds receptors target cell
What happens next in the relay race?
- Receptors activates G protein
Once the receptors activates the G protein, the G protein activates what (step 3)
Adenylate Cyclase
Adenylate Cyclase converts ATP to ______ (2nd messenger)
cAMP
Glucose leaves the liver via the ________ vein
Hepatic
In the body glucose is mainly stored in the _______ cell - a h___________
Liver
Hepatocyte