T/F Pt 2 Flashcards
An iron deficiency may result in decreased blood-clotting ability (abnormal bleeding).
T or F?
False
Hematopoiesis in adults normally takes place in the spleen, liver, and red bone marrow.
T or F?
False
Malnutrition is expected to have an impact on blood clotting.
T or F?
True
Each of the 3 formed elements of blood has its own stem cell.
T or F?
False
Lymphocytes are found only in lymph nodes
T or F?
False
Red blood cells normally survive in the blood stream for about 4 weeks.
T or F?
False
Macrophages are white blood cells that have left the blood stream and entered the tissue space.
T or F?
True
Given that red blood cells may contain 250,000 hemoglobin molecules, each red blood cell may carry a million O2 molecules at one time.
T or F?
True
There are a maximum 4 iron atoms found in each red blood cell.
T or F?
False
Red blood cells are produced in red bone marrow and white blood cells are produced in yellow bone marrow.
T or F?
False
The function of neutrophils is more similar to that of macrophages than lymphocytes.
T or F?
True
Most of hematopoiesis takes place in areas of spongy bone.
T or F?
True
Of the respiratory gases O2 and CO2, only CO2 can directly change the pH of body fluids.
T or F?
True
Surfactant adheres the visceral pleura to the parietal pleura.
T or F?
False
In order for gas exchange to occur normally in the lungs, inhaled air must reach alveoli.
T or F?
True
While hyperventilating (i.e. breathing faster than needed to support cellular respiration), oxygen levels in the blood will increase significantly, while carbon dioxide levels will remain the same. T or F?
False
Gas exchange is an example of passive transport.
T or F?
False
External respiration takes place in the tissue fluid outside cells.
T or F?
False
Oxygen and carbon dioxide are not the only gases we breathe in and out, but they are the only gases involved in cellular respiration.
T or F?
True
Ventilation of the lungs (i.e. air movement into and out of the lungs) is accomplished by voluntary muscle tissues.
T or F?
True
While the body is at rest, exhalation is a passive process.
T or F?
True
If ventilation is stopped (i.e. while holding your breath), oxygen gas levels remain the same in the blood, but carbon dioxide levels increase.
T or F?
False
Hypoventilation is a condition in which internal respiration is faster than external respiration.
T or F?
True
External respiration normally matches the rate of internal respiration.
T or F?
True
Internal respiration is the process by which molecules of oxygen and carbon dioxide gases are exchanged at the lungs.
T or F?
False
The principle muscles of inhalation are the external and internal intercostal muscles (between the ribs)
T or F?
False
There is one capillary serving each cell in the body.
T or F?
False
When blood pressure decreases, the kidneys signal an increase in heart rate.
T or F
False
Glomeruli are the site of nutrient and gas exchange for all cells of the kidneys.
T or F
False
Cell metabolism tends to produce acids more often than bases.
T or F?
True
Both aerobic and anaerobic cell metabolism may result in products that lower the pH of body fluids.
T or F?
True
Antidiuretic hormone (ADH) and Vasopressin are the same hormone. T or F
True
Tubular reabsorption returns solutes from the filtrate in the collecting duct to the blood.
T or F
False
Cortical nephrons have very long loops of Henle.
T or F
True
The kidneys do not participate directly in “fight or flight” or “rest and digest” homeostatic responses.
T or F
False
Surface area for the transport of solutes is highest in the proximal convoluted tubule of nephrons.
T or F
True
Aldosterone and ADH are the same hormone.
T or F
False
Tubular secretion contributes to pH homeostasis.
T or F
True
No changes may be made to the urinary filtrate as it travels through collecting ducts to the renal calyx of the kidney
T or F
False
Kidney function is influenced by both nervous and endocrine homeostatic mechanisms.
T or F
True
Digestive process are controlled reflexively by the Somatic nervous system.
T or F?
False
Bile released from the gall bladder contains enzymes for lipid digestion.
T or F?
False
The liver is important in the storage of nutrients.
T or F?
True
Increased secretion and motility in the digestive system does not require the ingestion of food.
T or F?
true
Food molecules for which there is no digestive enzyme will remain outside the body, in the lumen of the alimentary canal.
T or F?
True
The greenish color of bile is due to the presence of excess B vitamins destined for excretion via the digestive tract.
T or F?
False
Digestion of food molecules in the large intestine is primarily by bacterial action.
T or F?
True
The contents of the alimentary canal are maintained at a low pH to facilitate digestion.
T or F?
False
The mucosa of the alimentary canal contains villi along its length, except in the esophagus and stomach.
T or F?
False
The smooth muscle cells in the alimentary canal are called “single-unit” because they are connected to each other by gap junctions.
T or F?
True
The dark color of feces is due primarily to the breakdown products of hemoglobin recycling.
T or F?
True
Absorption of minerals from ingested food requires specific transport proteins.
T or F?
True
Lipid soluble products of digestion are absorbed into lacteals of the lymphatic system.
T or F?
True
