BIOD 151 Module 2 Exam Questions with Verified Solutions Fully Solved
True or false.
The lungs are symmetrical. - Answers False
Hilum - Answers the "root" of the lung
healthy lung tissue is what color - Answers peachy/pink color
pleurae - Answers membranes that surround the lungs and the cavity around the lungs
visceral pleura - Answers layer of pleura that faces/covers the lung
parietal pleura - Answers outer layer of pleura lying closer to the ribs and chest wall that covers the
surface around the lungs
pleural space/cavity - Answers 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 - Answers 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 - Answers 1) air conduction
2) air filtration
3) exchange of gases aka respiration
other things respiratory system has roles in - Answers vocalization, sense of smell. body's pH regulation
structures in the respiratory system - Answers nasal cavity, pharynx, larynx, trachea, bronchi, lungs
what happens to air as it goes from outside the body to the lungs - Answers 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 - Answers none and cartilage
nasal septum - Answers a wall of cartilage that divides the nose into two equal sections of left and right
fossae
, vestibule - Answers most external part of nasal cavity just inside the nostrils
vestibule lining - Answers skin continuation from the face and vissibrae
Vibrissae - Answers short thick hairs that help filter for the respiratory tract aka nose hairs
nasal conchae or folds - Answers increase the surface area of nasal cavity to aid in warming and
humidification of incoming air
why is the nasal cavity highly vascularized - Answers to warm incoming air
Three regions of the pharynx - Answers nasopharynx, oropharynx, laryngopharynx
nasopharynx - Answers connection between nasal cavity and pharynx - superior region of the pharynx at
the back of the nose and above the soft palate
Eustachian tube - Answers connects the middle ear with the nasopharynx and allows passage of air
oropharynx - Answers central portion of the pharynx caudal to the mouth and anterior to the epiglottis
laryngopharynx - Answers 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 - Answers the hard and soft palates
hard palate - Answers roof of the mouth
aspiration - Answers when food or liquid accidentally enters the trachea
may cause pneumonia
Pharynx - Answers passageway for food to the esophagus and air to the larynx
advantages of shared passageway of the pharynx - Answers 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 - Answers the muscular posterior portion of the palate that closes off the nasopharynx during
swallowing or speaking
glottis - Answers an opening in the larynx where vocal folds are located
Larynx - Answers voice box; passageway for air moving from pharynx to trachea; contains vocal cords
vocal folds (true vocal cords) - Answers at the edges of the glottis and embedded in mucous membranes
True or false.
The lungs are symmetrical. - Answers False
Hilum - Answers the "root" of the lung
healthy lung tissue is what color - Answers peachy/pink color
pleurae - Answers membranes that surround the lungs and the cavity around the lungs
visceral pleura - Answers layer of pleura that faces/covers the lung
parietal pleura - Answers outer layer of pleura lying closer to the ribs and chest wall that covers the
surface around the lungs
pleural space/cavity - Answers 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 - Answers 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 - Answers 1) air conduction
2) air filtration
3) exchange of gases aka respiration
other things respiratory system has roles in - Answers vocalization, sense of smell. body's pH regulation
structures in the respiratory system - Answers nasal cavity, pharynx, larynx, trachea, bronchi, lungs
what happens to air as it goes from outside the body to the lungs - Answers 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 - Answers none and cartilage
nasal septum - Answers a wall of cartilage that divides the nose into two equal sections of left and right
fossae
, vestibule - Answers most external part of nasal cavity just inside the nostrils
vestibule lining - Answers skin continuation from the face and vissibrae
Vibrissae - Answers short thick hairs that help filter for the respiratory tract aka nose hairs
nasal conchae or folds - Answers increase the surface area of nasal cavity to aid in warming and
humidification of incoming air
why is the nasal cavity highly vascularized - Answers to warm incoming air
Three regions of the pharynx - Answers nasopharynx, oropharynx, laryngopharynx
nasopharynx - Answers connection between nasal cavity and pharynx - superior region of the pharynx at
the back of the nose and above the soft palate
Eustachian tube - Answers connects the middle ear with the nasopharynx and allows passage of air
oropharynx - Answers central portion of the pharynx caudal to the mouth and anterior to the epiglottis
laryngopharynx - Answers 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 - Answers the hard and soft palates
hard palate - Answers roof of the mouth
aspiration - Answers when food or liquid accidentally enters the trachea
may cause pneumonia
Pharynx - Answers passageway for food to the esophagus and air to the larynx
advantages of shared passageway of the pharynx - Answers 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 - Answers the muscular posterior portion of the palate that closes off the nasopharynx during
swallowing or speaking
glottis - Answers an opening in the larynx where vocal folds are located
Larynx - Answers voice box; passageway for air moving from pharynx to trachea; contains vocal cords
vocal folds (true vocal cords) - Answers at the edges of the glottis and embedded in mucous membranes
