Test #3 Flashcards
This hormone is called a mineralcorticoid because it helps regulate the concentration of mineral elecrolytes, such as sodium and potassium ions.
Aldosterone
Ca+2 is required during coagulation in the
Common pathway
Intrinsic Pathway
Extrinsic Pathway
Which hormone is released in response to low levels of calcium in the bloodstream?
PTH
Which is involved for the extrinsic pathway of blood clotting?
a. Tissue factor III
b. Tissue damage
c. Ca+2
Gonadotropin releasing hormone stimulates the release of which of the following from the anterior pituitary?
Follicle stimulating hormone
Luteinizing hormone
Which of the following changes in plasma levels would be observed in a primary hyposecretion of cortisol?
Increased CRH, increased ACTH, and decreased cortisol
An individual with bulging eyes (exophthalmos) may
Be secreting excessive thyroid hormone
Blood clots are primarily made of a protein called_______
Fibrin
One major target of antidiuretic hormone is
The kidneys
Which of the following hormones targets the anterior pituitary?
GHIH
Spermatogenesis is directly stimulated by
Both LH and testosterone
Which of the following hormones affects fluid and blood volume?
Aldosterone
Vasopressin
- Insulin is secreted by the ______ cells of the ______.
Beta; pancreas
Steroid and thyroid hormones have receptors that are located ______ of the target cell.
In the ICF or
In the Nuleus
What is the function of plasmin?
Dissolve blood clots
If an individual takes large amounts to testosterone for a period of time, which of the following hormones would you expect to find in decreased concentration in the blood?
a. Gonadotropin releasing hormone
b. Luteinizing hormone
c. Follicle stimulating hormone
Chronic hypersecretion of a hormone can lead to _______ the receptor for that chemical messenger on the target cell.
Down regulation of
Hypo responsiveness of
Which disorder represents a hyposecretion disorder?
Addisons disease
Diabetes insipidus
Which of the listed signal transduction mechanisms could not be initiated with a water-soluble chemical messenger?
Gene activation
Place the following stages of hemostasis in order
- Platlet plug formation
- Coagulation
- Fibrinolysis
- Clot retraction
- Vasoconstriction
5,1,2,4,3 Vasoconstriction Platlet plug formation Coagulation Clot retraction Fibrinolysis
Diabetes mellitus is a disease that involves insulin and how it affects the body. Which of the following statements correctly describes the differences between type I and type II diabetes mellitus?
People with type 2 are most often diagnosed during adulthood while type 1 is diagnosed early in life
Which of the following hormones is not released from the adrenal gland?
Somatotropin
Choose the targets for vasopressin
Kidneys
Blood vessels
Choose the signal transduction mechanism used by ACH to initiate skeletal muscle contraction
Gene activation
Gluconeogenesis may be stimulated by which of the following hormones?
Glucagon
Cortisol
A person is diagnosed with hypothyroidism and his T3 T4 TSH and TRH all measure lower than normal values. What is the most likely diagnosis?
Tertiary hypo thyroidism
What controls oxytocin release?
Hypothalamus action potentials
A peptide hormone that is responsible for stimulating sperm development by the testis is:
Follicle stimulating hormone
Which phase of the general adaptation syndrome includes elevated levels of cortisol and aldosterone?
Resistance phase
What triggers erythropoietin release?
Decreased blood oxygen levels
Choose the enzyme that begins the common pathway of coagulation
Prothrominase
Synthesis of red blood cells is called _____ and occurs in the ______
Erythropoiesis: bone marrow
What is defined as a decrease in the oxygen-carrying capacity of blood?
Anemia
_______ inhibits the release of glucagon
high plasma glucose
Prolactin releasing hormone (PRH) is produced in the
Hypothalamus
Aldosterone stimulates
Na+ reabsorption
K+ secretion
All hormones must be bound to a carrier/escort protein in the blood plasma in order to travel to target cells
False
Regulation of insulin release by blood glucose levels is an example of humoral control of hormone secretion.
True
Insulin receptors are located on plasma membranes
True
A tumor stimulating over secretion of hormones by the parathyroid gland would cause plasma Ca 2+ to increase.
True
Dopamine is released from the hypothalamus and the adrenal cortex
False
Women have more erythrocytes than men due to higher levels of estrogen
False
Androgen insensitivity represents a hypo secretion disorder
False
The signal transduction mechanism used for steroid hormones is initiated with a tyrosine kinase receptor
False
One consequence of stress-induced cortisol secretion is hypertension.
True
