MC Practice Test - Block 2 (part 2)

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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


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