Glands Flashcards
Difference between endocrine glands exocrine glands
Endocrine secret hormons with in body
Exocrine glands secretions are internal or external also use ducts
What is neurotransmitter, paracrine signals , hormones
Transmit single from neuron
Local hormones
Chemical messenger
Three negative feed backs
Hormonal control ,neural control, humoral control
Difference between steroids and no steroids
S. Act on DNA in cells nucleolus and effect gene expression
NS. Proteins and peptides or modified amino acids that are not lipid soluble
Production of each of the anterior lobe hormone is controlled by
Master glands, GH , TSH, ACTH, FSH, LH, PRL u
Actions of hormones in pituitary gland
Growth hormone, thyroid stimulating hormone, adrenocorticotropic hormone,
Follicle stimulating hormone ,
Luteinizing hormone,
Prolactin
Posterior lobes formed by what
Neurosecretory cells , neural negative feed back
Actions of hormones in pituitary gland
Come from neurosecretery Hormones are released from axons…where they diffuse with the blood
Pituitary gland disorders
Hyper secretions
Hypo secretions
How are thyroid hormones controlled
Iodine atoms
List actions of thyroid hormones
Thyroxine is the primary hormone it also is know as T4 each molecule contains iodine atoms…
The other hormone is triiodothyronine know Ass t3
How is production of calcitonin controlled
Negative feed back
List actions of calcitonin
It decrease blood Ca2
Increases the rate of Ca
Thyroid disorders
Hyper secretion Hypo secretions Iodine deficiency Graves' disease Simple goiter Cretinism Myxedma
How the production of parathyroid hormone is controlled
Parathyroid secret the parathyroid hormone
List actions of parathyroid hormone
Important regulator of blood Ca,
Also inhibiting Ca deposition by osteoblasts
Parathyroid disorders
Hypo secretion causes tetany which may result in death
Hypersecretion causes weak deformed bones
Major parathyroid disorders
Hyposecretions causes tetany which may result in death
Describe how the production of adrenal hormones is controlled
Autonomic nervous system regulates the secretion of adrenal medullary hormones
Action of Adriana hormones
Secret epinephrine and norepinephrine
Major adrenal disorders
Hypersecretion causes prolonged response
Hyposecretions can cause Addison disease
Cushing syndrome
Describe the major pancreatic hormones
Secret digestive enzymes into tiny ducts within the gland
Actions of pancreatic hormones
Exocrine and endocrine glands
Secret digestive enzymes
Stimulates secretion of thyroid
Thyroid gland
Stimulates cell growth and division
GH
