Glands Hormones Flashcards
secretes chemicals
Glands
secretes hormones in
blood
Endocrine
Secretes substances through a duct; sweat, tears, saliva, milk.
Exocrine
Chemical messenger; sends signal
Hormones
Growth hormone
Somatotropin, Anterior
Milk hormone
Anterior, prolactin
Stimulate thyroid gland
Anterior Thyroid stimulating Hormone (TSH)
Stimulates adrenal gland
Anterior Adrenocorticotrophic Hormone (ACH)
Stimulates gonads
Anterior Gonadotropin
reabsorption of water by kidney
Vasopressin (Anti-diuretic hormone) posterior
uterine contraction
Oxytocin (Love hormone) postrrior
Produced in response to darkness
Melatonin, pineal
Sleep-wake cycle
PINEAL GLAND
Melatonin
Insomnia
PINEAL GLAND
Melatonin
Regulates metabolism
Thyroxine THYROID GLAND
Decrease blood calcium
THYROID GLAND Calcitonin
Increase blood calcium by releasing it form bones or reabsorption by kidney and intestine
Parathyroid hormone PARATHYROID GLAND
Hypercalcemia
PARATHYROID GLAND
Keeps body in high alert status (increase heart and breathing rate, and muscle strenght)
ADRENAL GLAND
Adrenal medulla
• Epinephrine (Adrenaline)
duringstress,itpromotes glucose synthesis to supply energy for cells; body repair and reduces swelling
ADRENAL GLAND
Adrenal medulla
• Cortisol
Regulatessodium reabsorption and potassium excretion by kidneys.
ADRENAL GLAND
Adrenal medulla Aldosterone
Decreases blood sugar
PANCREAS
• Insulin
Increases blood sugar
Glucagon PANCREAS
Growthinhibiting
PANCREAS Somatostatin
Feminine
Estrogen OVARIES
Pregnancy
OVARIES Progesterone
Masculine
TESTES
• Testosterone
the maintenance of a variable around an ideal normal
value
Homeostasis
Internal Balance
Homeostasis
to detect a change and monitors the value of a variable
receptor honeostasis
receives information about the variable from the receptor then process and integrate what is happening.
control center hemeostassi
to produce a response appropriate to the change.
effector
Components of homeostatic control / Nerve pathway
Receptor, sensoryneuron, control center, motor neuron, effector
a reaction in which the system responds in such a way as to reverse the direction of change
Negative feedback mechanism
Negative feedback mechanism examples (4)
Thermoregulation, Carbon dioxide concentration, Blood sugar level, and Blood pressure
reaction that causes a decrease in function.
Negative feedback mechanism
occurs in response to some kind of stimulus.
Negative feedback mechanism
it causes the output of a system to be lessened to stabilize the system
Negative feedback mechanism
