Endocrine system Flashcards
Second controlling system of the body
Endocrine system
are produced by specialized cells
Hormones
is the scientific study of
hormones and endocrine organs
Endocrinology
An organ that makes hormones that are released directly into the blood and travel to tissues and organs all over the body.
Endocrine glands
a region of the forebrain below the thalamus which coordinates both the autonomic nervous system and the activity of the pituitary, controlling body temperature, thirst, hunger, and other homeostatic systems, and involved in sleep and emotional activity
Hypothalamus
is a small, pea-sized gland. It is found at the base of your brain, in line with the top of your nose
Pituitary gland
is a tiny endocrine gland in the middle of your brain that helps regulate your body’s circadian rhythm by secreting the hormone melatonin.
Pineal gland
is an endocrine gland in vertebrates. In humans, it is a butterfly-shaped gland located in the neck below the Adam’s apple.
Thyroid gland
are four pea-sized endocrine glands that are embedded within the back side of your thyroid.
Parathyroid glands
also known as suprarenal glands, are small, triangular-shaped glands located on top of both kidneys.
Adrenal glands
is an organ located in the abdomen. It plays an essential role in converting the food we eat into fuel for the body’s cells.
Pancreas
are a pair of organs in the female reproductive system that produce eggs and female hormones
Ovaries
are two oval-shaped male reproductive glands that produce sperm and the hormone testosterone.
testes
is in the chest between the lungs. It makes white blood cells (T lymphocytes) which are part of the immune system and help fight infection.
Thymus gland
are chemical messengers that regulate activities in tissues and organs
Hormones
After hormones are released from the cell where they are made, they bind and act only on _____.
target cells
is a receptor (lock) located on either the surface of the target cell (cell membrane) or inside the cell (cytoplasm or nucleus)
address
is important for the normal functioning of various physiological and behavioral activities.
Hormone regulation
The body produces more than ___ kinds of hormones
40
The production of the hormones is maintained through ____
feedback mechanism
increases the deviation of the hormone level from the normal as needed by the body in a certain situation.
Positive feedback mechanism
decreases the deviation of the hormone level from the normal value.
Negative feedback mechanism
Hormones produced in the pituitary gland
Thyroid-stimulating hormone (TSH), Prolactin, Adrenocorticotropic hormone, Endorphin, Growth hormone, Luteinizing hormone (LH), Follicle-stimulating hormone (FH), Oxytocin, Antidiuretic hormone (ADH)
Hormones produced by thyroid
Thyroxine, calctitonin
Hormones produced by Parathyroid
Parathyroid hormone
Hormones produced by Adrenal glands
Epinephrine, Norepinephrine
Hormones produced by Pancreas
Insulin, Glucagon
Hormones produced by Ovaries
Estrogen, Progesterone
Hormones produced by Testes
Testosterone
Hormones produced by Thymus
Thymosin
Hormones produced by Pineal
Melatonin
Hormones produced by Gastrointestinal tract
Gastrin
Major action of Thyroid-stimulating hormone
Stimulates the production and secretion of thyroxine
Major action of Prolactin
Stimulates milk production
Major action of Adrenocorticotropic hormone (ACTH)
Stimulates the secretion of corticosteroid
Major action of Endorphin
Decreases the pain
Major action of Growth Hormone
Stimulates general body growth
Major action of Luteinizing Hormone (LH)
Stimulates the ovulation and production of estrogen and progesterone
Major action of Follicle-stimulating Hormone (FSH) in the Ovaries
Stimulates the growth of ovarian follicle
Major action of Follicle-stimulating Hormone (FSH) in the Testes
Stimulates sperm production
Major action of oxytocin on the mammary gland
Stimulates milk secretion
Major action of oxytocin on the uterus
Stimulates uterine contraction
Major action of Antidiuretic hormone (ADH)
Increases water absorption
Major action of Thyroxine
Increases metabolic rate and growth
Major action of Calcitonin
Stimulates calcium uptake
Major action of Parathyroid hormone on bones
Stimulates calcium release into blood
Major action of Parathyroid hormone on Digestive tracts
Stimulates calcium uptake into the blood
Major action of Epinephrine(adrenaline) on Circulatory system
Increases heart rate, blood pressure, and blood sugar
Major action of Epinephrine(adrenaline) on Respiratory system
Increasing breathing rate and clears airways
Major action of Insulin
Stimulates glucose uptake from the blood
Major action of Glucagon
Stimulates glucose release from cells into the blood
Major action of Estrogen
Stimulates the female development and behavior
Major action of Progesterone
Stimulates uterine lining
Major action of Testosterone
Stimulates male development and behavior
Major action of Thymosin
Stimulates differentiation
Major action of Melatonin
Regulates biological rhythms
Major action of Gastrin
Stimulates hydrochloric acid secretion
Is a biological process of physical, hormonal, and emotional changes that marks the transition from childhood to adulthood.
Puberty
Key glands involved in Puberty
Hypothalamus, Pituitary Gland, Gonads, and Adrenal Glands
a change in the internal or external environment triggers a homeostatic response.
Stimulus
specialized receptors detect change and transmit the information to the control center
Sensor
The control center often the brain of endocrine glands, processes the information and initiates a corrective action.
Response