ANAT 100 Block Theory 3 Questions with Detailed Verified Answers (100% Correct Answers) /Already Graded A+

ANAT 100 Block Theory 3 Questions with Detailed
Verified Answers (100% Correct Answers) /Already
Graded A+



Quiz: Primary functions of the respiratory system

Ans: Gas exchange, gas conditioning, sound production, olfaction,
and defense.


Quiz: Two cyclic phases of respiration

Ans: Inspiration (oxygen-rich air enters the lungs) and expiration
(oxygen-poor air leaves the lungs).


Quiz: External respiration

Ans: The exchange of gases between the air in the lungs and the
blood in pulmonary capillaries.


Quiz: Internal respiration

Ans: The exchange of gases between blood in systemic capillaries
and body tissues.


Quiz: Gas conditioning

Ans: It warms, humidifies, and cleanses air to prevent lung damage.


Quiz: Location of gas conditioning

Ans: In the nasal cavity and paranasal sinuses.



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,Quiz: Defense against pathogens in the respiratory system

Ans: Mucus, cilia, immune cells, and nasal hairs trap and remove
pathogens.


Quiz: Role of cilia in the respiratory tract

Ans: They beat in a coordinated motion to move mucus and trapped
particles out of the airways.


Quiz: Conducting portion of the respiratory system

Ans: Nose, nasal cavity, paranasal sinuses, pharynx, larynx, trachea,
bronchi, and terminal bronchioles.


Quiz: Respiratory portion of the respiratory system

Ans: Respiratory bronchioles, alveolar ducts, alveolar sacs, and
alveoli.


Quiz: Four paranasal sinuses

Ans: Frontal, maxillary, ethmoid, and sphenoid sinuses.


Quiz: Function of the paranasal sinuses

Ans: They lighten the skull, aid in gas conditioning, and serve as
resonance chambers for speech.


Quiz: Epithelium lining most of the nasal cavity

Ans: Pseudostratified ciliated columnar epithelium.

Quiz: Contribution of nasal conchae to respiration



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, Ans: They create turbulence, increasing air contact with the mucosa
for better conditioning.

Quiz: Function of goblet cells in the nasal cavity

Ans: They secrete mucus that traps debris and humidifies incoming
air.

Quiz: Role of the nasal septum

Ans: It divides the nasal cavity into left and right halves.


Quiz: Structure connecting the nasal cavity to the pharynx

Ans: The choanae.


Quiz: Function of olfactory epithelium

Ans: It contains olfactory receptor neurons responsible for
detecting airborne molecules and transmitting smell signals.

Quiz: Boundaries of the nasal cavity

Ans: Roof (ethmoid bone), floor (hard palate), medial wall (nasal
septum), and lateral wall (nasal conchae).

Quiz: Function of nasal hairs (vibrissae)

Ans: They trap large particles and debris before air enters the
respiratory tract.


Quiz: Three regions of the pharynx

Ans: Nasopharynx, oropharynx, and laryngopharynx.


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, Quiz: Epithelium lining the nasopharynx

Ans: Pseudostratified ciliated columnar epithelium for air filtration.

Quiz: Epithelium lining the oropharynx and laryngopharynx

Ans: Stratified squamous epithelium for protection during
swallowing.


Quiz: Primary function of the epiglottis

Ans: To prevent food from entering the trachea during swallowing.


Quiz: Three major cartilages of the larynx

Ans: Epiglottis, thyroid cartilage, and cricoid cartilage.


Quiz: Contribution of the thyroid cartilage to voice production

Ans: It provides attachment for vocal cords.


Quiz: Function of the true vocal cords

Ans: They vibrate to produce sound.


Quiz: Function of the false vocal cords

Ans: They protect the true vocal cords and help close the larynx
during swallowing.


Quiz: Effect of changing tension on the vocal cords

Ans: Increased tension produces a higher pitch, while decreased
tension produces a lower pitch.



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