MC Practice Test - Block 2 (part 2)
In an adult the normal residual volume is
1200 ml
Once released from the bone marrow into the circulation, the average life span of a red blood cell is about
4 months (120 days)
The average resting volume of ventilated air per minute in a human being is about
6 liters/minute
About which percent of the pancreas is normally dedicated to exocrine function?
99%?...
The horizontal fissure is located between the
Right superior and middle lobes
What kind of risk exists when a woman who is Rh+ carries an Rh- fetus?
There is never a risk to the fetus in any pregnancy Rh positive females will never make anti-Rh antibodies.
Which describes anemia?
a reduction in oxygen-carrying capacity of the blood Anemia involves either fewer RBCs or less hemoglobin.
Which digestive process involves movement of small molecules into the blood stream?
absorption
In the respiratory system, gaseous exchange occurs in the
alveoli
Which of the following is not a component of blood?
carbon dioxide
The stomach cell that secretes pepsinogen is the
chief cell
A substance that stimulates the gallbladder to release bile is
cholecystokinin
Which of the following plasma proteins plays a role in blood clotting?
fibrinogen
Which of the following plasma proteins plays a role in disease resistance?
globulins
A person with type O+ blood would
have Rh but not A or B antigens on his RBCs
Blood vessels, bronchi and lymphatic vessels enter each lung at the
hilus
The parietal cells of gastric glands secrete
hydrochloric acid
The major chemical digestion that occurs in the adult stomach is
hydrolysis of proteins by pepsin
The process of mastication results in
mechanical mixing of food with saliva and shaping of food into a bolus
Where are the central chemoreceptors located?
medulla oblongata
Which of the following lists the structures in the CORRECT order of air flow inward?
nasopharynx, oropharynx, laryngopharynx, larynx, trachea
A blood transfusion reaction will
occur when plasma antibodies contact red blood cells carrying the antigen with which they react
The source of trypsinogen and chymotrypsinogen is the
pancreas
The receptors that detect movement within the joints and muscles called
proprioreceptors
Other than water, the most common component of plasma is
protein
The lungs receive blood from the
pulmonary arteries
Blood leaves the lungs via the
pulmonary veins
One of the major functions of the large intestine is to
reabsorb water from chyme
Which problem could NOT be caused by a deficiency of plasma proteins?
reduced ability to transport oxygen
The folds of the gastric mucosa are called
rugae
What is found between the parietal and visceral layers of the pleura?
serous fluid
Which of these diseases involves a problem with the red blood cells?
sickle cell anemia
Which substance reduces surface tension within the alveoli?
surfactant
Blood helps to maintain homeostasis by
transporting materials between the tissue fluid and the external environment
Of the respiratory air volumes listed, which one has the largest volume?
vital capacity
