Endocrine System Flashcards
Hypothalamus is connected to pituitary gland via a stalk called
Infundibulum
Anterior pituitary consists of
Glandular tissue
Exocrine Glands produce
Non hormonal substances
Endocrine glands are stimulated to synthesis and release hormones in response to one of three stimuli
Humoral
Neural
Hormonal
Humoral Stimuli
Parathyroid in response to decrease calcium
Neural Stimuli
Sympathetic NS can stimulate adrenal glands
Hormonal Stimuli
Hypothalamus hormones can influence hormones of pituitary gland
Endocrine system function
Differentiation of the reproductive and CNS of the
Fetus
Endocrine system function
Coordination of
Male and female reproductive systems
Endocrine system functions
Stimulation of sequential growth and development
During childhood and adolescence
Endocrine system fucntion
Initiation of corrective and adaptive responses when
Emergency demands occur
Hypothalamus exerts hormonal control by
Releasing and inhibiting factors
Tropic (stimulating hormones)
ACTH
THS
LH
FSH
Acts on endocrine glands
Effector hormones
GH
Prolactin
Acts on peripheral tissues
GH
Promote increased growth of long bones and other tissues
Thyroid stimulating hormone
Stimulates thyroid gland to produce hormones
Calcitonin
T3
T4
- Adrenocorticotropic Hormone Stimulates adrenal cortex to produce corticosteroid hormones
Maintain BP
Control electrolyte balance
Promote glucose mobilization into the bloodstream
Prolactin
Causes production of milk
LH and FSH regulate
Ovarian hormones responsible for oogenesis and menstrual cycles
Testicular hormones and spermatogenesis in males
ADH participates in osmotic regulation by promoting
Water retention by kidneys, allowing concentration of the urine
Oxytocin causes
Contractions of smooth muscle in the breast for milk let down and contractions of uterus during labor
Thyroid gland regulates
Normal growth and development
Thyroid gland is critical for normal
Skeletal and NS development and reproductive capabilities
Thyroid maintains
BP
Too much calcium =
Inhibition of PTH
Parathyroid hormone regulates
Calcium and phosphate metabolism
Parathyroid Hormone stimulates
Calcium reabsorption and phosphate from bone
Adrenal Cortex secretes
Mineralocorticoids
Glucocorticoids
Sex Steroids
Mineralocorticoids
Aldosterone
Regulates Na Reabsorption and K secretion and regulation of BP
Glucocorticoids (cortisol)
Accelerate glucose synthesis and glycogen formation
Anti inflammatory affects
Androgens influence
Male and female sexual characteristics
Adrenal Medulla produces
Epinephrine and norepinephrine
Epinephrine and Norepinephrine
Fight or Flight
Increase HR
Dysrhythmias
Vasoconstriction with increased BP
Increased blood glucose
ADH stimulus
Increased osmolarity in blood
Decreased blood volume or BP
ADH controls
Concentration of body fluids by decreasing the amount of water lost at kidneys
ADH causes
Vasoconstriction of peripheral blood vessels and increase in BP
