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25 Cards in this Set

  • Front
  • Back
What type of gland secretes into the environment?
endocrine gland
What type of gland secrets through ducts?
exocrine gland
Three Classes of Hormones
Amino Acids, peptide hormones, and lipid derivatives
Hormones that free-circulating in the blood are?
Water solulable, active for less than 1 hour
Where are plasma membrane receptors located?
on the plasma membrane
What hormones us plasma membrane receptors?
all hormones excetp steroid and thyroid hormones.
receptor number decreases due to high concentration of a specific hormone
down-regulation
receptor number increases due to low concentration of a specific hormone
up-regulation
receptors used by thyroid and steroid hormones
intracellular receptors
Effects on the cell during intracellular reception of hormone?
activate or deactivate specific genes. Increase mitochondrial activity.
major integrating link between the nervous and endocrine systems
hypothalamus
What are the two typ regulatory hormones secreted by the hypothalamus?
Releasing hormone (RH)
Inhibiting hormone (IH)
What two hormones are secreted throughthe posterior pituitary gland?
Antidiuretic Hormone (ADH)
Oxytoxin (OXT)
What hormones are located in the anterior pituitary gland?
1. Thyeroid-stimulating hormone (TSH)
2. Adrenocorticoptropic Hormone (ACTH or corticoptropin
3. Gonadotropins
a. follicile-stimulating hormone (FAH)
b. Luteinizing Hormone (LH)
4. Prolactin (PRL)
5. Growth Hormone (GH)
6. Melanocyte (MSH)
What hormones are secreted by the posterior pituitary gland?
1. Andtidiuretic Hormone (ADH)
2. Oxytocin (OXT)
What is the largest endocrine gland?
thyroid gland
What 2 hormones do the thyroid gland produce?
1. Thyroxine (T4)
2. Triiodothyronine (T3)
What are two small pairs of glands embedded in posterior surface of the thyroid gland?
the parathyroid gland
What hormone does the parathyroid gland secrete?
Parathyroid Hormone
Paired, pyramid-shaped glands just superior to the kidneys?
The suprarenal glands; adrenal glands
what are the 3 zones of the adrenal glands?
1. zona glomerulosa
2.zona fasciculata
3. zona reticularis
What are the two major regions of the adrenal gland?
suprarenal cortex and suprarenal medulla
What is TSH?
Thyroid stimulating hormone (TSH)
1. Anterior pituatary gland
2. Producing cells: thyrotropic cells
3. Class: peptide
4. Target: thyroid gland
5. Controlled by: 1. thyrotropin-releasing hormone (TRH) 2. Inhibited in response to high levels of circulating thyroied hormone
What is ACTH?
Adrenocorticoptropic Hormone (ACTH) aka corticoptropin
1. Location: anterior pituatary gland
2. Producing cells: corticoptrophic cells
3. Class: peptide
4. Target: Adrenal corex of adrenal gland
5. control of hormone release:
a. secreted in response to corticotrophin-releasing hormone (CRH)]
b. Inhibited in response to high level of circulating gluocorticoids
What are gonadotropins?
location: anterior lobe of pituitary gland
2. cells producing: gonadotrophic cells
3. class:
4. target: gonads
5. effects: