Term
Primary Function of Endocrine System
What is the primary function of the endocrine system?
Answer
Function
To produce and secrete hormones that regulate body functions.
Hormones travel in the blood to target organs and cells, where they bind to specific receptors. They influence cells by altering metabolism, growth, or gene expression. Unlike neurotransmitters that act at synapses, hormones have systemic effects because they circulate throughout the bloodstream.
Negative Feedback Loop: A system used to maintain balance. A rise in hormone levels inhibits further release. For example, if thyroxine levels rise too high, the hypothalamus reduces stimulation of the pituitary, decreasing hormone release.
What is the primary function of the endocrine system?
To produce and secrete hormones that regulate body functions.
Which gland is known as the "control centre" of the endocrine system?
The hypothalamus.
What gland is referred to as the "master gland"?
The pituitary gland.
Which glands produce hormones involved in the stress response?
The adrenal glands.
What hormone does the pancreas release to lower blood sugar?
Insulin.
Which gland regulates metabolism through thyroid hormone production?
The thyroid gland.
What is the main role of sex hormones produced by gonads?
To regulate sexual development and reproductive function.
How do hormones travel to target cells?
Through the bloodstream.
What type of feedback loop is commonly used to regulate hormone levels?
Negative feedback.
How does the endocrine system differ from the nervous system in communication?
It is slower but has longer-lasting and systemic effects.