Test 2
A hemocrit measures
Percentage of RBC in packed blood
Once released from the bone marrow into the circulation, the average life span of a red blood cell is about
4 months
The normal tidal volume in an adult is
500 mL
The average resting volume of ventilated air per minute in a human being is about
6 liters
The total lung capacity in a normal human is about
6000 ml
What is normal blood pH?
7.4
Which event occurs after HCO3- (bicarbonate ion) is manufactured in the blood?
Cl- enters the red blood cell as HCO3- exits the red blood cell.
Which of the following plasma proteins plays a role in blood clotting?
Fibrinogens
Which of the following plasma proteins plays a role in disease resistance?
Globulins
Which of the following is a CORRECT statement about proelastase, chymotrypsin, and procarboxypeptidase?
They are activated in the small intestine by trypsin.
The laboratory measurement of all erythrocytes, platelets and white blood cells is called
a complete blood count
Which of the following is a function of the large intestine?
absorption of water and electrolytes
How is carbon dioxide (CO2) mostly carried by the blood?
as bicarbonate ion
Which leukocyte is NOT correctly matched with its description?
basophil - typical kidney-shaped nucleus, largest white blood cell
The enzyme called salivary amylase functions to begin digestion of
break down starch
The appendix is attached to the
cecum
The role of the epiglottis is to
close off the larynx during swallowing
The portion of a tooth visible in the mouth is the neck
crown
Which digestive process involves movement elimination of waste products?
defecation
A function of alveoli is to
exchange oxygen and carbon dioxide with the blood
In which choice is the plasma protein correctly matched with one of its functions?
globulins - transport minerals, lipids, hormones and vitamins
Blood vessels, bronchi and lymphatic vessels enter each lung at the
hilus
The major chemical digestion that occurs in the adult stomach is
hydrolysis of proteins by pepsin
Rapid, deep breathing is called
hyperventilation
Each body function on the left is correctly matched with the corresponding function of the blood on the right EXCEPT
immune defense - platelet factors initiate clotting
The amount of air that can be maximally inhaled after a normal exhalation is called the
inspiratory capacity
Which cell is NOT classified as a granulocyte?
lymphocyte
Which of the following is an example of mechanical digestion?
mastication
The small intestine is attached to the posterior abdominal wall by a fold of the peritoneum called the
mesentery
A person's blood type is determined by
mixing the blood with different antibodies to see which ones cause the red blood cells to agglutinate
Which of the following is a phagocyte?
monocytes
Where is the myenteric plexus?
muscularis
In which choice are the leukocytes correctly arranged in order from most common to least common?
neutrophils, lymphocytes, monocytes, eosinophils, basophils
What kind of risk exists when a woman who is Rh+ carries an Rh- fetus?
none
A blood transfusion reaction will
occur when plasma antibodies contact red blood cells carrying the antigen with which they react
Which of the following lists parts of the G.I. tube in the CORRECT order of food movement?
oropharynx, laryngopharynx, esophagus, stomach, pyloric sphincter
Which of the following would be considered an accessory organ of the digestive system?
pancreas
Other than water, the most common component of plasma is
protein
Blood leaves the lungs via the
pulmonary veins
The residual volume in the lungs is the amount of air
remaining in the lungs after forced expiration
The horizontal fissure is located between the
right superior and middle lobes
The folds of the gastric mucosa are called
rugae
A substance released by the duodenum in response to the acidic pH of chyme is
secretin
Apparatus used to measure air flow into or out of the lung
spirometer
The pyloric sphincter is located at the junction of the
stomach and duodenum
The right lung is composed of ______ lobes; the left lung is composed of ______ lobes.
three; two
Blood helps to maintain homeostasis by
transporting materials between the tissue fluid and the external environment
Projections on the mucosa of the small intestine that are covered by absorptive and goblet cells and contain lymph vessels and capillaries are called
villi