Lsn 4 16.14-17.3

A typical adult hematocrit is around 75. 85. 25. 45. 65.

45

Too little secretion of cortisol causes diabetes insipidus. Cushing's disease. goiter. diabetes mellitus. Addison's disease.

Addison's disease

Why are Tanya's cells starved for sugar (glucose) if there is so much glucose in the blood? Tanya's cells don't recognize the messages telling them to let the glucose inside Tanya's pancreas is not making insulin Tanya's cells are insensitive to the glucagon produced by her pancreas Tanya ate too much glucose and the high levels have poisoned her cells

Tanya's cells don't recognize the messages telling them to let the glucose inside

Which of the following statements is false? Veins return blood to the capillaries The heart propels blood and helps maintain blood pressure. Arteries carry blood away from the heart. Capillaries permit diffusion between blood and interstitial fluids.

Veins return blood to the capillaries

What hormone causes the loss of sodium and water, thus lowering blood pressure. aldosterone erythropoietin angiotensin II atrial natriuretic peptide (ANP)

atrial natriuretic peptide (ANP)

Platelets are large cells with a prominent, concave nucleus. blue cells that have a nucleus. cytoplasmic fragments of large cells. red cells that lack a nucleus. tiny cells with a polynucleus.

cytoplasmic fragments of large cells.

The sympathetic nervous system directly stimulates which of the following amine hormones? insulin epinephrine from the adrenal medulla aldosterone thyroid hormones

epinephrine from the adrenal medulla

Red blood cell production is regulated by the hormone erythropoietin. albumin. renin. thymosin. angiotensin.

erythropoietin

Which of the following hormones increases production of red blood cells? atrial natriuretic peptide aldosterone thymosin cortisol erythropoietin

erythropoietin

A hematocrit provides information on plasma composition. blood type. clotting factors. formed elements abundance. sedimentation rate.

formed elements abundance

Cushing disease is a result of which of the following? hypersecretion of epinephrine and norepinephrine hyposecretion of corticosteroids hyposecretion of mineralocorticoids hypersecretion of glucocorticoids

hypersecretion of glucocorticoids

What hormone promotes glycogen synthesis in liver and muscle? glucagon cortisol epinephrine insulin

insulin

What amine hormone helps coordinate body activities with the light-dark cycle? inhibin melatonin prolactin thymosin

melatonin

Natriuretic peptides: stimulate renin release and ADH secretion. promote the loss of sodium and water at the kidneys. involve stretch receptors in the kidneys. increase blood volume and pressure.

promote the loss of sodium and water at the kidneys

The chief differences between plasma and interstitial fluid involves the concentration of electrolytes. proteins. nitrogen wastes. glucose. water.

proteins.

In adults, the only site of red blood cell production, and the primary site of white blood cell formation, is yellow bone marrow. red bone marrow. the thymus. the spleen. the liver.

red bone marrow

If stress lasts longer than a few hours, an individual will enter the ________ phase of the general adaptation syndrome (GAS). exhaustion extension alarm prolonged resistance

resistance

The normal pH of blood is neutral. extremely alkaline. slightly alkaline. slightly acidic. extremely acidic.

slightly alkaline

Each of the following is a characteristic of whole blood except deep red color. the ability to absorb heat from active skeletal muscles. a built-in system for clotting. viscosity about the same as water. the ability to neutralize acids.

viscosity about the same as water.

Where is thyroid stimulating hormone (TSH) synthesized? adrenal cortex thyroid anterior pituitary posterior pituitary

anterior pituitary

Calcitonin is secreted by which cells? C cells (parafollicular cells) in the thyroid gland chief cells of the parathyroid gland beta cells in the pancreas chromaffin cells

C cells (parafollicular cells) in the thyroid gland

What other symptom is Tanya likely experiencing as a result of diabetes that accounts for her high level of thirst? Increased defecation and diarrhea Increased blockages in the arteries of the heart Increased urination Increased sweat production

Increased urination

Which of the following is the best evidence that Tanya has Type 2 (not Type 1) diabetes mellitus? She feels thirsty all the time She is 50-years old and out of shape She is experiencing vision problems She has lots of sugar in her blood, but her cells are starved for sugar

She is 50-years old and out of shape

Which plasma protein is a major contributor to the osmotic pressure of plasma? hormone-binding protein gamma globulin fibrinogen steroid-binding protein albumin

albumin

The enzyme renin is responsible for the activation of erythropoietin. angiotensin. cortisol. atrial natriuretic peptide. adrenaline.

angiotensin

The zona fasciculata of the adrenal cortex produces what steroid hormone? testosterone glucagon cortisol aldosterone

cortisol

The exhaustion phase of the general adaptation syndrome (GAS) is characterized by decreased resistance to disease and infection. increased ability to produce glucose from glycogen. increased pumping effectiveness of the heart. All of the answers are correct. None of the answers is correct.

decreased resistance to disease and infection.

The level of erythropoietin in the blood would rise due to all of the following except as a consequence of hemorrhage. during periods of fasting. at high altitudes. when blood flow to the kidneys is disrupted. during anemia.

during periods of fasting.