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These flashcards cover key concepts related to feedback loops and cell communication as discussed in the lecture.
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Negative Feedback Loops
Processes that return the body to a set point.
Hypothalamus
Part of the brain that acts as a control center for maintaining homeostasis.
Effectors
Organs that fix the problem in a feedback loop.
Homeostasis
Maintaining body conditions.
Blood Glucose Homeostasis
Process involving the pancreas, liver, and body cells to regulate blood glucose levels.
Insulin
A hormone released by the pancreas that lowers blood glucose levels.
Glucagon
A hormone released by the pancreas that raises blood glucose levels.
Positive Feedback Loops
Processes that move the body away from a set point.
Oxytocin
A hormone that stimulates uterine contractions during childbirth.
Endocrine Communication
Involves secretion of hormones into the bloodstream to act on target cells.
Neurons
Cells in the nervous system that communicate via neurotransmitters.
Signal Transduction
The process by which a signal molecule activates a receptor and initiates a cellular response.
G Protein
A protein that transmits signals from outside the cell to inside, activating other cellular processes.
Protein Kinase
An enzyme that modifies other proteins by adding phosphate groups, affecting their activity.