BIOD 151 Module 2 Exam Questions And Answers

BIOD 151 Module 2 Exam Questions And Answers True or false. The lungs are symmetrical. - ANS False Hilum - ANS the "root" of the lung healthy lung tissue is what color - ANS peachy/pink color pleura - ANS membranes that surround the lungs and the cavity around the lungs visceral pleura - ANS layer of pleura that faces/covers the lung parietal pleura - ANS outer layer of pleura lying closer to the ribs and chest wall that covers the surface around the lungs pleural space/cavity - ANS 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 - ANS 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 - ANS 1) air conduction 2) air filtration 3) exchange of gases aka respiration other things respiratory system has roles in - ANS vocalization, sense of smell. body's pH regulation structures in the respiratory system - ANS nasal cavity, pharynx, larynx, trachea, bronchi, lungs what happens to air as it goes from outside the body to the lungs - ANS 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 - ANS none and cartilage nasal septum - ANS a wall of cartilage that divides the nose into two equal sections of left and right fossae vestibule - ANS most external part of nasal cavity just inside the nostrils vestibule lining - ANS skin continuation from the face and vissibrae Vibrissae - ANS short thick hairs that help filter for the respiratory tract aka nose hairs nasal conchae or folds - ANS increase the surface area of nasal cavity to aid in warming and humidification of incoming air why is the nasal cavity highly vascularized - ANS to warm incoming air Three regions of the pharynx - ANS nasopharynx, oropharynx, laryngopharynx