Unit 3: 1 & 2 Quiz Questions Flashcards
Peptide hormones are _
- lipids.
- chemically related to cholesterol.
- derived from the amino acid tyrosine.
- produced by the adrenal glands.
- composed of amino acids.
composed of amino acids.
All of the following are true of steroid hormones EXCEPT that they _
- bind to receptors within the cell.
- are derived from cholesterol.
- are produced by reproductive glands.
- are produced by the adrenal medulla.
- are lipids.
are produced by the adrenal medulla.
The main action of antidiuretic hormone is _
- increase urine output to remove excess fluid.
- to stimulate kidney cells to secrete renin.
- increased water conservation by kidneys.
- increased blood pressure by increased Na+
- reabsorption.
- inhibition of aldosterone
increased water conservation by kidneys.
Liver cells respond to growth hormone by releasing hormones called _
- prostaglandins.
- hepatic hormones.
- glucocorticoids.
- somatomedins.
- gonadotrophins
somatomedins.
The pituitary hormone that promotes ovarian secretion of progesterone and testicular secretion of testosterone is _
- ACTH.
- GH.
- FSH.
- LH.
- TSH.
LH.
Which of the following elements is necessary for the production of thyroid hormone?
- colloid
- iodine
- iron
- sodium
- potassium
iodine
Thyroid hormone may increase cellular ATP production by binding to _
- the outer surface of the plasma membrane.
- the cytoplasm.
- the inner surface of the plasma membrane.
- the vesicles.
- the mitochondria.
the mitochondria.
The parathyroid glands produce a hormone that _
- stimulates the formation of white blood cells.
- increases the level of potassium ions in the blood.
- increases the level of sodium ions in the blood.
- increases the level of glucose in the blood.
- increases the level of calcium ions in the blood.
increases the level of calcium ions in the blood.
Reduction of fluid losses at the kidneys due to the retention of Na+ is the action of _
- oxytocin.
- aldosterone.
- antidiuretic hormone.
- cortisone.
- calcitonin.
aldosterone.
In persons with untreated diabetes mellitus all of the following are true, EXCEPT _
- intracellular and tissue levels of glucose is very high.
- a large excretion of urine occurs.
- blood glucose levels are very high.
- glucose is present in the urine in large amounts.
- excessive thirst is shown.
intracellular and tissue levels of glucose is very high.
Large blood vessels and lymphatics are found in the _
- mucosa.
- muscularis.
- adventitia.
- submucosa.
- serosa.
submucosa.
The functions of the oral cavity include all of the following EXCEPT _
- absorption of monosaccharides.
- digestion of carbohydrates.
- sensory analysis of material before swallowing.
- lubrication.
- mechanical processing of food.
absorption of monosaccharides.
In most cases, the mumps is a viral infection of the ________ glands.
- lingual
- mandibular
- submandibular
- parotid
- sublingual
parotid
During deglutition, which of the following phases is first?
- gastric
- buccal
- esophageal
- pharyngeal
- enteric
buccal
Match the gastric phase on the left (1-3) with the correct description on the right (4-6):
- intestinal phase 4. prepares stomach for arrival of food
- gastric phase 5. stomach empties and decreases secretions
- cephalic phase 6. stomach secretes juice and mixes food into chyme
- 1 and 6; 2 and 4; 3 and 5
- 1 and 5; 2 and 4; 3 and 6
- 1 and 4; 2 and 5; 3 and 6
- 1 and 6; 2 and 5; 3 and 4
- 1 and 5; 2 and 6; 3 and 4
1 and 5; 2 and 6; 3 and 4
A drug that blocks the action of carbonic anhydrase in parietal cells would result in _
- increased protein digestion in the stomach.
- decreased gastrin production.
- a higher pH during gastric digestion.
- decreased production of pepsinogen by chief cells.
- a lower pH during gastric digestion.
a higher pH during gastric digestion.
Tom has hepatitis, an inflammation of the liver. Which of the following symptoms would you expect to observe in Tom?
- blood in the feces
- elevated levels of blood glucose
- jaundice
- overproduction of blood plasma albumin
- impaired digestion of protein
jaundice
A drug that blocks the action of the hormone cholecystokinin would affect all of the following EXCEPT _
- relaxation of the hepatopancreatic sphincter.
- absorption of water in the large intestines.
- the composition of pancreatic secretions.
- the delivery of bile.
- digestion of lipids and proteins.
absorption of water in the large intestines.
Brush border enzymes are found in the _
- rugae.
- villi.
- circular folds.
- microvilli.
- plicae circularis.
microvilli.
Products of fat digestion are transported initially by _
- the interstitial fluid.
- the arterioles.
- veins.
- lymphatic vessels.
- capillaries.
lymphatic vessels.
