All Flashcards
What is the endocrine system?
The body's chemical communication network using hormones secreted by glands to regulate functions.
What are hormones?
Chemical messengers released by glands into the bloodstream that travel to target organs.
What is the pineal gland?
A gland that produces melatonin, regulating the sleep-wake cycle (circadian rhythm).
What is the hypothalamus?
The control center that regulates the pituitary gland and is crucial for fighting, fleeing, feeding, and mating.
What is the pituitary gland?
The 'master gland' controlled by the hypothalamus, regulating growth and releasing hormones like oxytocin.
What is the thyroid gland?
A gland that affects metabolism.
What are the parathyroids?
Glands that regulate calcium levels in the blood.
What are the adrenal glands?
Glands that trigger the 'fight-or-flight' response, releasing epinephrine (adrenaline) and norepinephrine.
What is the pancreas?
A gland that regulates blood sugar levels by releasing insulin and also aids in digestion.
What are the testes?
Male reproductive glands that release sex hormones for growth and development.
What are the ovaries?
Female reproductive glands that release sex hormones for growth and development.
How does the endocrine system relate to stress?
The hypothalamus, pituitary, and adrenal glands work together to release hormones like cortisol and adrenaline in response to stress.
How does the endocrine system affect sleep?
The pineal gland produces melatonin, which regulates the sleep-wake cycle.
How does the endocrine system regulate blood sugar?
The pancreas releases insulin to regulate blood sugar levels.
How does the endocrine system influence social bonding?
The pituitary gland releases oxytocin, which promotes bonding and trust.
How can problems with the thyroid affect someone?
Problems with the thyroid can affect metabolism, leading to weight gain or loss, fatigue, and other symptoms.
How does the endocrine system play a role in growth?
The pituitary gland releases growth hormones that are vital for physical development.
How does the endocrine system influence appetite?
The hypothalamus regulates hunger, and hormones like insulin affect blood sugar levels, which can influence appetite.
How does the endocrine system relate to the autonomic nervous system?
The adrenal glands, part of the endocrine system, are connected to the autonomic nervous system and trigger the 'fight-or-flight' response.
How can a stressful childhood affect the endocrine system?
Early stress can affect gene expression, leading to higher stress levels later in life, influencing the endocrine system's response.
How does diabetes relate to the endocrine system?
Diabetes is related to the pancreas not producing enough insulin, leading to high blood sugar levels.
What is the effect of increased cortisol levels?
Increased cortisol levels can lead to anxiety, difficulty sleeping, and changes in appetite.
What is the effect of melatonin production?
Melatonin production regulates the sleep-wake cycle, promoting sleepiness at night.
What is the effect of insulin release?
Insulin release regulates blood sugar levels by allowing glucose to enter cells.
What is the effect of oxytocin release?
Oxytocin release promotes bonding and trust.
What is the effect of epinephrine release?
Epinephrine release triggers the 'fight-or-flight' response, increasing heart rate and energy.
What is the effect of thyroid hormone imbalance?
Thyroid hormone imbalance can lead to changes in metabolism, affecting weight, energy levels, and mood.
What is the effect of a damaged hypothalamus?
A damaged hypothalamus can disrupt many bodily functions, including hunger, thirst, stress response, and regulation of the pituitary gland.
What is the effect of low calcium levels?
Low calcium levels, if not regulated by the parathyroids, can lead to muscle spasms and other health problems.
What is the effect of high blood sugar levels?
High blood sugar levels, if not regulated by insulin, can lead to diabetes and other health complications.
What is the effect of sex hormone release during puberty?
The release of sex hormones during puberty leads to the development of secondary sexual characteristics.