Endocrine_System_Flashcards
(62 cards)
What is the main function of the endocrine system?
To use hormones to regulate growth, metabolism, and reproduction.
What are hormones?
Chemical messengers that travel through the bloodstream to target specific organs and tissues.
What is the word root, and give an example?
The core meaning of a term (e.g., ‘thyr’ for thyroid).
What is a combining form (CF), and give an example?
A word root plus a vowel (e.g., ‘thyro’).
What is a prefix, and give an example?
A modifier at the beginning of a word (e.g., ‘hyper’ for excessive).
What is a suffix, and give an example?
Describes a condition at the end of a word (e.g., ‘-ism’ for a state or condition).
Why is the pituitary gland called the ‘master gland’?
Because it controls other glands in the endocrine system.
What hormones does the anterior lobe of the pituitary gland produce?
Growth hormone (GH), adrenocorticotropic hormone (ACTH), thyroid-stimulating hormone (TSH), and prolactin.
What hormones are released by the posterior lobe of the pituitary gland?
Oxytocin and antidiuretic hormone (ADH).
What is the role of the thyroid gland?
To regulate metabolism, energy, and growth.
What hormones does the thyroid gland produce?
Thyroxine (T4), triiodothyronine (T3), and calcitonin.
What is the function of calcitonin?
To lower blood calcium levels.
How many parathyroid glands are there, and what do they produce?
Four glands that produce parathyroid hormone (PTH).
What is the function of parathyroid hormone (PTH)?
To raise blood calcium levels.
Where are the adrenal glands located?
On top of the kidneys.
What hormones does the adrenal cortex produce?
Corticosteroids (cortisol and aldosterone) and androgens.
What hormones does the adrenal medulla secrete?
Adrenaline (epinephrine) and noradrenaline (norepinephrine).
What is the function of adrenaline and noradrenaline?
To mediate the ‘fight or flight’ response.
What are the two functions of the pancreas?
Endocrine and exocrine.
What is the endocrine function of the pancreas?
Produces insulin and glucagon to regulate blood glucose levels.
What is the exocrine function of the pancreas?
Secretes digestive enzymes.
What does the pineal gland produce?
Melatonin.
What is the function of melatonin?
Regulates sleep-wake cycles.
What does the thymus produce?
Thymosin.