Question 1

The area in the lungs where oxygen and carbon dioxide are exchanged is the
A) bronchiole
B) bronchus
C) pleura
D) alveolus

Accepted Answer

The alveoli are tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide occurs. Oxygen is absorbed into the bloodstream from the alveoli, while carbon dioxide is released from the bloodstream into the alveoli to be exhaled. A bronchiole is a small branch of the bronchus, which is part of the airway system in the lungs. The pleura is a thin membrane that surrounds the lungs and lines the chest cavity.

Question 2

The space between the lungs is the
A) mediastinum
B) diaphragm
C) pleura
D) trachea

Accepted Answer

The mediastinum is the space between the two lungs that contains the heart, great vessels, esophagus, trachea, thymus gland, and lymph nodes.

Question 3

The combining form that means thorax, chest, chest cavity is
A) pleur/o
B) tom/o
C) diaphragmat/o
D) thorac/o

Accepted Answer

The combining form thorac/o means thorax, chest, or chest cavity. The other choices have different meanings: pleur/o refers to the membrane surrounding the lungs, tom/o refers to a cut or section, and diaphragmat/o refers to the diaphragm muscle.

Question 4

Lymphoid tissue located on the lateral wall at the junction of the oral cavity and oropharynx is called the
A) paranasal sinuses
B) tonsils
C) adenoids
D) nasal septum

Accepted Answer

The tonsils are groups of lymphoid tissue located on the lateral wall at the junction of the oral cavity and oropharynx. The paranasal sinuses are air-filled spaces in the bones of the skull, the adenoids are also lymphoid tissue but are located in the nasopharynx, and the nasal septum is a partition dividing the nasal cavity into two nostrils.

Question 5

The prefix that means without, absence of is
A) an-
B) endo-
C) intra-
D) eu-

Accepted Answer

The prefix "an-" means without, absence of. For example, anaerobic means living without oxygen.

Question 6

Which is the synonym for throat?
A) trachea
B) larynx
C) pharynx
D) diaphragm

Accepted Answer

The pharynx refers to the membrane-lined cavity behind the nose and mouth, connecting them to the esophagus. It is commonly referred to as the throat. The trachea (A) is the windpipe; the larynx (B) is the voice box; and the diaphragm (D) is a muscle located at the bottom of the chest cavity that is involved in breathing.

Question 7

The partition separating the right and left cavities of the nose is the
A) nasal septum
B) paranasal sinus
C) epiglottis
D) adenoids

Accepted Answer

The nasal septum separates the right and left cavities of the nose.

Question 8

The combining form that means x-rays, ionizing radiation is
A) tom/o
B) phon/o
C) radi/o
D) capn/o

Accepted Answer

The combining form radi/o specifically refers to x-rays and ionizing radiation.

Question 9

The combining form rhin/o refers to the
A) nose
B) sinus
C) septum
D) air

Accepted Answer

The combining form rhin/o specifically refers to the nose. While other structures such as the sinus and septum are involved with the nose, they do not solely describe the nose itself. Likewise, while air is involved with the nose, it is not a specific structure or organ.

Question 10

The vocal cords are located in the
A) larynx
B) pharynx
C) trachea
D) epiglottis

Accepted Answer

The vocal cords, also known as vocal folds, are located in the larynx, which is the structure in the neck that contains the vocal apparatus. The larynx sits at the top of the trachea, which is the windpipe that connects the lungs to the mouth and nose. The pharynx and epiglottis are also located in the throat, but they are not directly involved in vocalization.

Question 11

The combining form that means breathe, breathing is
A) son/o
B) ox/i
C) spir/o
D) pneum/o

Accepted Answer

The combining form "spir/o" means breathe or breathing, as in the words "respiratory" and "inspiration." The other answer choices, "son/o," "ox/i," and "pneum/o," do not have the same meaning related to breathing.

Question 12

The muscular partition between the thoracic and abdominal cavities is the
A) mediastinum
B) pleura
C) epiglottis
D) diaphragm

Accepted Answer

The diaphragm is the muscular partition that separates the thoracic and abdominal cavities. The mediastinum is a compartment in the thoracic cavity between the lungs, the pleura is a membrane that lines the thoracic cavity and covers the lungs, and the epiglottis is a flap of cartilage in the throat that prevents food from entering the trachea during swallowing.

Question 13

The lymphoid tissue located on the posterior wall of the nasal cavity is called
A) paranasal sinuses
B) tonsils
C) adenoids
D) nasal septum

Accepted Answer

The lymphoid tissue located on the posterior wall of the nasal cavity is specifically called adenoids, also known as pharyngeal tonsils. Tonsils (choice B) are a different type of lymphoid tissue located at the back of the throat. Paranasal sinuses (choice A) are air-filled spaces within the bones surrounding the nasal cavity. The nasal septum (choice D) is a bony and cartilaginous partition that separates the left and right nasal cavities.

Question 14

The suffix that means pain is
A) -cele
B) -pexy
C) -spasm
D) -algia

Accepted Answer

The suffix -algia means pain.

Question 15

The suffix -ary is defined as
A) breathing
B) in the blood
C) constriction
D) pertaining to

Accepted Answer

The suffix -ary means "pertaining to". For example, the word "vascular" means "pertaining to the blood vessels" (vasc being the root word and -ular being another suffix).

Question 16

The combining form that means lung is
A) trache/o
B) rhin/o
C) bronch/o
D) pulmon/o

Accepted Answer

The combining form pulmon/o specifically refers to the lung, while trache/o refers to the trachea, bronch/o refers to the bronchi, and rhin/o refers to the nose.

Question 17

Both air and food travel through the
A) larynx
B) esophagus
C) trachea
D) pharynx

Accepted Answer

The pharynx is a shared pathway for both air and food, leading to the esophagus for food and the larynx/trachea for air.

Question 18

The suffix that means an instrument used for visual examination is
A) -gram
B) -scopy
C) -graph
D) -scope

Accepted Answer

The suffix -scope means an instrument used for visual examination, such as a microscope or telescope. The other choices, -gram, -scopy, and -graph, have different meanings. -Gram means a record or writing, such as electrocardiogram or radiogram. -Scopy means a visual examination, such as endoscopy or colonoscopy. -Graph means a depiction or representation, such as electroencephalogram or radiograph.

Question 19

The combining form orth/o is defined as
A) straight
B) oxygen
C) incomplete
D) breathe

Accepted Answer

The combining form orth/o means "straight" or "upright," as in orthodontics (straightening teeth).

Question 20

Which of the following carries air from the trachea to the lung?
A) bronchioles
B) larynx
C) bronchus
D) pleura

Accepted Answer

The bronchus is the tube that carries air from the trachea to the lung. The bronchioles are smaller tubes within the lungs, and the larynx is the part of the throat that contains the vocal cords. The pleura is a membrane that lines the lungs and chest cavity.

Quiz 5: Respiratory System and Introduction to Diagnostic Procedures and Tests

The area in the lungs where oxygen and carbon dioxide are exchanged is the

The space between the lungs is the

The combining form that means thorax, chest, chest cavity is

Lymphoid tissue located on the lateral wall at the junction of the oral cavity and oropharynx is called the

The prefix that means without, absence of is

Which is the synonym for throat?

The partition separating the right and left cavities of the nose is the

The combining form that means x-rays, ionizing radiation is

The combining form rhin/o refers to the

The vocal cords are located in the

The combining form that means breathe, breathing is

The muscular partition between the thoracic and abdominal cavities is the

The lymphoid tissue located on the posterior wall of the nasal cavity is called

The suffix that means pain is

The suffix -ary is defined as

The combining form that means lung is

Both air and food travel through the

The suffix that means an instrument used for visual examination is

The combining form orth/o is defined as

Which of the following carries air from the trachea to the lung?