The voice box is called the:
A
Explanation:
The larynx is commonly referred to as the voice box. It is located in the neck and performs several
functions, including breathing, producing sound, and protecting the trachea against food aspiration.
The larynx houses the vocal cords, which vibrate to produce sound when air is expelled from the
lungs. The other options refer to different parts of the respiratory and digestive systems:
Pharynx: A muscular tube that serves both respiratory and digestive functions by connecting the
nasal and oral cavities to the larynx and esophagus.
Glottis: The part of the larynx consisting of the vocal cords and the opening between them. It is not a
structure itself but rather a component of the larynx.
Trachea: Also known as the windpipe, it is a tube that connects the larynx to the bronchi of the lungs,
allowing the passage of air.
Reference:
"Larynx." Encyclopedia Britannica,
https://www.britannica.com/science/larynx
A substance provided by the stomach, necessary for the digestion of food, is called:
C
Explanation:
Hydrochloric acid (HCl) is a substance produced by the stomach lining. It plays a crucial role in
digestion by creating an acidic environment, which helps in the breakdown of food, activates
digestive enzymes like pepsin, and kills harmful bacteria ingested with food. The other options are:
Glycogen: A stored form of glucose found in the liver and muscles, not directly involved in digestion.
Insulin: A hormone produced by the pancreas that regulates blood glucose levels, not involved in
digestion in the stomach.
Glucose: A simple sugar that is an end product of carbohydrate digestion, not a substance produced
by the stomach.
Reference:
"Digestive System: The Stomach." Johns Hopkins Medicine,
https://www.hopkinsmedicine.org/health/wellness-and-prevention/the-stomach
The approximate number of bones in the body is:
C
Explanation:
The human adult body typically has 206 bones. These bones provide structure, protect organs,
anchor muscles, and store calcium. Infants are born with approximately 270 bones, some of which
fuse together during growth to form the 206 bones in an adult skeleton. The other options are
incorrect as they do not represent the total bone count in the adult human body.
Reference:
"How many bones are in the human body?" Medical News Today,
https://www.medicalnewstoday.com/articles/325003
A counting chamber utilized in manual microscopic methods is called a
A
Explanation:
A hemacytometer is a device used in manual microscopic methods to count cells. It consists of a thick
glass microscope slide with a grid etched into it. This grid allows for the counting of cells in a defined
volume of fluid, making it possible to calculate the concentration of cells in a sample. The other
options are not valid terms:
Hyamestometer: Not a recognized term.
Ccntraomctcr: Typographical error, not a valid term.
Hcmacountcr: Typographical error, not a valid term.
Reference:
"Hemacytometer." ScienceDirect,
https://www.sciencedirect.com/topics/neuroscience/hemacytometer
Fats are sometimes called:
A
Explanation:
Lipids is the scientific term for fats. They are a broad group of naturally occurring molecules that
include fats, waxes, sterols, fat-soluble vitamins, and others. Lipids are essential for storing energy,
signaling, and acting as structural components of cell membranes. The other options are related to
different substances:
Lactose: A sugar found in milk.
Lipoproteins: Complexes of lipids and proteins that transport lipids through the bloodstream.
Lacteals: Lymphatic vessels in the small intestine that absorb fats.
Reference:
"Lipids." National Center for Biotechnology Information,
https://www.ncbi.nlm.nih.gov/books/NBK22260/
The universal donor is blood type:
B
Explanation:
The universal donor blood type is O negative (O-). This means that individuals with this blood type
can donate blood to recipients of any other blood type. This is due to the absence of A and B
antigens on the red blood cells and the lack of Rh antigen, which prevents the immune system of the
recipient from recognizing the donor blood as foreign. The concept of universal donor is fundamental
in emergency situations when there's no time to cross-match blood types.
Reference:
American Red Cross. (n.d.). Understanding Blood Types.
Mayo Clinic. (n.d.). Blood Types and Compatibility.
The most common combining form is:
D
Explanation:
The most common combining form in medical terminology is "o". A combining form consists of a
root word and a combining vowel, typically "o", which is used to ease pronunciation when adding
suffixes or when combining multiple roots.
Reference:
Chabner, D.-E. (2016). The Language of Medicine (11th ed.). Elsevier.
Cohen, B. J., & DePetris, A. (2013). Medical Terminology: An Illustrated Guide (7th ed.). Lippincott
Williams & Wilkins.
Intercostal refers to
D
Explanation:
The term intercostal refers to the anatomical location between the ribs. "Inter-" means between, and
"costal" pertains to the ribs. The intercostal muscles, for example, are muscles located between the
ribs that play a key role in the respiratory process by aiding in the expansion and contraction of the
thoracic cavity.
Reference:
Moore, K. L., Dalley, A. F., & Agur, A. M. R. (2013). Clinically Oriented Anatomy (7th ed.). Wolters
Kluwer.
Tortora, G. J., & Derrickson, B. (2017). Principles of Anatomy and Physiology (15th ed.). Wiley.
Occult means
D
Explanation:
The term occult means hidden. In medical contexts, this term is often used to describe conditions or
symptoms that are not immediately apparent or visible. For example, occult blood in the stool refers
to blood that is not visible to the naked eye but can be detected through chemical tests.
Reference:
Mosby's Medical Dictionary (10th ed.). (2017). Elsevier.
Dorland's Illustrated Medical Dictionary (32nd ed.). (2011). Elsevier.
The purpose of applying paste or jelly when running an EKG Is to reduce
A
Explanation:
The purpose of applying paste or jelly when running an EKG (Electrocardiogram) is to reduce skin
resistance. This conductive gel ensures better conductivity between the skin and the electrodes,
resulting in a clearer and more accurate recording of the heart's electrical activity. Without the gel,
poor contact can lead to high resistance and artifacts in the EKG trace.
Reference:
Thaler, M. S. (2018). The Only EKG Book You'll Ever Need (9th ed.). Wolters Kluwer
Glucose tolerance test is a test for:
B
Explanation:
A glucose tolerance test (GTT) is used to evaluate how well the body processes glucose, which is
crucial for diagnosing conditions related to sugar metabolism, such as diabetes and insulin
resistance. During the test, a patient consumes a glucose-rich beverage, and blood samples are taken
at intervals to measure blood glucose levels. The primary purpose is to assess the body's ability to
metabolize sugar.
Reference:
"Glucose Tolerance Test." Mayo Clinic,
https://www.mayoclinic.org/tests-procedures/glucose-
tolerance-test/about/pac-20394296
Atriomegaly refers to:
C
Explanation:
Atriomegaly is a medical term that describes the enlargement of the atrium of the heart. The atria
are the two upper chambers of the heart, and enlargement can be due to various conditions such as
hypertension, valvular heart disease, or cardiomyopathy. This enlargement can affect the heart's
ability to pump blood efficiently.
Reference:
"Atriomegaly." Medical Dictionary, https://medical-dictionary.thefreedictionary.com/atriomegaly
The doctor's office is most concerned with:
A
Explanation:
A doctor's office primarily deals with civil and criminal law. Civil law covers issues such as
malpractice, patient confidentiality, and contract disputes, while criminal law may involve cases of
fraud, illegal prescription practices, or breaches of health regulations. Understanding both areas is
crucial for healthcare professionals to comply with legal standards and protect their practice.
Reference:
"Legal Aspects of Health Care." American Medical Association, https://www.ama-
assn.org/delivering-care/ethics/legal-issues
High blood pressure is referred to as
C
Explanation:
Hypertension is the medical term for high blood pressure. It is a condition where the force of the
blood against the artery walls is consistently too high, which can lead to heart disease, stroke, and
other health problems. The other terms refer to different conditions:
Hyperemia: Increased blood flow to a particular area of the body.
Hypertrophy: Enlargement of an organ or tissue from the increase in the size of its cells.
Hyperthermia: Abnormally high body temperature.
Reference:
"Hypertension." American Heart Association, https://www.heart.org/en/health-topics/high-blood-
pressure
A condition indicating that certain elements are lacking in the blood:
B
Explanation:
Anemia is a condition characterized by a deficiency of red blood cells or hemoglobin in the blood,
leading to a lack of oxygen being carried to the body's tissues. This can result from a deficiency of
iron, vitamin B12, or folate, among other causes. The other options refer to different conditions:
Angina: Chest pain caused by reduced blood flow to the heart.
Ischemia: Restricted blood supply to tissues, causing a shortage of oxygen needed for cellular
metabolism.
Reference:
"Anemia." National Heart, Lung, and Blood Institute,
https://www.nhlbi.nih.gov/health-
topics/anemia
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