BIOD 151 Module 2 Exam Review Answer Key (Portage
learning)UPDATED 2022
True or false.
The lungs are symmetrical. - ANSWER: False
Hilum - ANSWER: the "root" of the lung
healthy lung tissue is what color - ANSWER: peachy/pink color
pleurae - ANSWER: membranes that surround the lungs and the cavity around the
lungs
visceral pleura - ANSWER: layer of pleura that faces/covers the lung
parietal pleura - ANSWER: outer layer of pleura lying closer to the ribs and chest wall
that covers the surface around the lungs
pleural space/cavity - ANSWER: Space between the visceral and parietal pleural
membranes (small)
typically empty but has a small amount of fluid that allows for frictionless breathing
when diseased, this space can fill with air or fluid
what is the function of the pleurae - ANSWER: the pleurae help reduce friction and
help with inflation and inhalation
compartmentalize, protect, and lubricate the lungs
the three main functions of the respiratory system - ANSWER: 1) air conduction
2) air filtration
3) exchange of gases aka respiration
other things respiratory system has roles in - ANSWER: vocalization, sense of smell.
body's pH regulation
structures in the respiratory system - ANSWER: nasal cavity, pharynx, larynx, trachea,
bronchi, lungs
what happens to air as it goes from outside the body to the lungs - ANSWER: air is
filtered so it has no debris
air is warmed to body temp
air is humidified and becomes saturated with water
nasal cavities aka fossae are composed of what - ANSWER: none and cartilage
, nasal septum - ANSWER: a wall of cartilage that divides the nose into two equal
sections of left and right fossae
vestibule - ANSWER: most external part of nasal cavity just inside the nostrils
vestibule lining - ANSWER: skin continuation from the face and vissibrae
Vibrissae - ANSWER: short thick hairs that help filter for the respiratory tract aka
nose hairs
nasal conchae or folds - ANSWER: increase the surface area of nasal cavity to aid in
warming and humidification of incoming air
why is the nasal cavity highly vascularized - ANSWER: to warm incoming air
Three regions of the pharynx - ANSWER: nasopharynx, oropharynx, laryngopharynx
nasopharynx - ANSWER: connection between nasal cavity and pharynx - superior
region of the pharynx at the back of the nose and above the soft palate
Eustachian tube - ANSWER: connects the middle ear with the nasopharynx and
allows passage of air
oropharynx - ANSWER: central portion of the pharynx caudal to the mouth and
anterior to the epiglottis
laryngopharynx - ANSWER: inferior part of the pharynx connecting the pharynx to
the opening into the larynx and esophagus
what separates the nasal cavity from the oral cavity in the mouth - ANSWER: the
hard and soft palates
hard palate - ANSWER: roof of the mouth
aspiration - ANSWER: when food or liquid accidentally enters the trachea
may cause pneumonia
Pharynx - ANSWER: passageway for food to the esophagus and air to the larynx
advantages of shared passageway of the pharynx - ANSWER: 1) air can enter through
the mouth when nasal cavity is obstructed
2) allows for relatively normal breathing while eating
3) greater air intake during heavy exercise that requires more gas exchange
soft palate - ANSWER: the muscular posterior portion of the palate that closes off the
nasopharynx during swallowing or speaking
learning)UPDATED 2022
True or false.
The lungs are symmetrical. - ANSWER: False
Hilum - ANSWER: the "root" of the lung
healthy lung tissue is what color - ANSWER: peachy/pink color
pleurae - ANSWER: membranes that surround the lungs and the cavity around the
lungs
visceral pleura - ANSWER: layer of pleura that faces/covers the lung
parietal pleura - ANSWER: outer layer of pleura lying closer to the ribs and chest wall
that covers the surface around the lungs
pleural space/cavity - ANSWER: Space between the visceral and parietal pleural
membranes (small)
typically empty but has a small amount of fluid that allows for frictionless breathing
when diseased, this space can fill with air or fluid
what is the function of the pleurae - ANSWER: the pleurae help reduce friction and
help with inflation and inhalation
compartmentalize, protect, and lubricate the lungs
the three main functions of the respiratory system - ANSWER: 1) air conduction
2) air filtration
3) exchange of gases aka respiration
other things respiratory system has roles in - ANSWER: vocalization, sense of smell.
body's pH regulation
structures in the respiratory system - ANSWER: nasal cavity, pharynx, larynx, trachea,
bronchi, lungs
what happens to air as it goes from outside the body to the lungs - ANSWER: air is
filtered so it has no debris
air is warmed to body temp
air is humidified and becomes saturated with water
nasal cavities aka fossae are composed of what - ANSWER: none and cartilage
, nasal septum - ANSWER: a wall of cartilage that divides the nose into two equal
sections of left and right fossae
vestibule - ANSWER: most external part of nasal cavity just inside the nostrils
vestibule lining - ANSWER: skin continuation from the face and vissibrae
Vibrissae - ANSWER: short thick hairs that help filter for the respiratory tract aka
nose hairs
nasal conchae or folds - ANSWER: increase the surface area of nasal cavity to aid in
warming and humidification of incoming air
why is the nasal cavity highly vascularized - ANSWER: to warm incoming air
Three regions of the pharynx - ANSWER: nasopharynx, oropharynx, laryngopharynx
nasopharynx - ANSWER: connection between nasal cavity and pharynx - superior
region of the pharynx at the back of the nose and above the soft palate
Eustachian tube - ANSWER: connects the middle ear with the nasopharynx and
allows passage of air
oropharynx - ANSWER: central portion of the pharynx caudal to the mouth and
anterior to the epiglottis
laryngopharynx - ANSWER: inferior part of the pharynx connecting the pharynx to
the opening into the larynx and esophagus
what separates the nasal cavity from the oral cavity in the mouth - ANSWER: the
hard and soft palates
hard palate - ANSWER: roof of the mouth
aspiration - ANSWER: when food or liquid accidentally enters the trachea
may cause pneumonia
Pharynx - ANSWER: passageway for food to the esophagus and air to the larynx
advantages of shared passageway of the pharynx - ANSWER: 1) air can enter through
the mouth when nasal cavity is obstructed
2) allows for relatively normal breathing while eating
3) greater air intake during heavy exercise that requires more gas exchange
soft palate - ANSWER: the muscular posterior portion of the palate that closes off the
nasopharynx during swallowing or speaking
