AP2 Unit 3 practical|Alveolar Sacs, Alveoli, Type I & II Alveolar Cells,
Surfactant, Respiratory Membrane, Pleural Cavity, Visceral Pleura, Parietal
Pleura, Hilum, Lung Lobes (Superior, Middle, Inferior), Oblique Fissure,
Horizontal Fissure, Cardiac Notch, Trachea, Trachealis Muscle, Primary,
Secondary, Tertiary Bronchi, Bronchioles, Terminal Bronchioles, Nasal
Cavity, Pharynx (Nasopharynx, Oropharynx, Laryngopharynx), Larynx, Vocal
Folds, Vestibular Folds, Thyroid Cartilage, Cricoid Cartilage, Epiglottis,
Arytenoid & Corniculate Cartilages, Pulmonary Ventilation, Alveolar
Ventilation, Gas Transport, Oxygen-Hemoglobin Dissociation, Bohr &
Haldane Effects, Hepatopancreatic Ampulla, Stomach Regions (Fundus,
Body, Pylorus), Small Intestine (Duodenum, Jejunum, Ileum), Villi, Plicae
Circulares, Large Intestine (Cecum, Colon, Rectum, Anal Canal), Liver Lobules
& Hepatocytes, Pancreas Ducts & Acini, Salivary Glands (Parotid,
Submandibular, Sublingual), Tooth Histology (Enamel, Dentin, Pulp, Crown,
Root) Exam Questions Complete and Provided with Verified A+ Graded
Rationales Latest Updated 2026
alveolar sacs
clusters of alveoli
alveoli
tiny sacs of lung tissue specialized for the movement of gases between air and blood
visceral pleura (serous membrane that sits on the lungs)
inner layer, lying closer to the lung tissue
parietal pleura
outer layer, lying closer to thoracic wall
,pleural cavity (space between the serous membranes/pleura membranes)
Space between the membranes around the lungs.
apex of the lung
tip or uppermost portion of the lung
base of the lung
lowest part of the lung, resting on the diaphragm
hilum
the point where the bronchi, pulmonary vessels, lymphatic vessels, and nerves enter lung
superior lobe of right lung
Separated from middle lobe by horizontal fissure: receives secondary bronchus
middle lobe of right lung
Separated from superior lobe by horizontal fissure, and lower lobe by oblique fissure: receives
secondary bronchus. only right lung has this lobe
inferior lobe of right lung
Separated from middle lobe by oblique fissure: receives secondary bronchus
, superior lobe of left lung
has cardiac notch: receives secondary bronchus
inferior lobe of left lung
Rests on diaphragm, separated from superior by oblique fissure: receives secondary bronchus
oblique fissure of left lung
separates the inferior from the superior lobe
oblique fissure of right lung
separates the middle lobe from the inferior lobe
horizontal fissure of right lung
Separates superior and middle lobes, joins oblique laterally. only on right lung
histological bronchus (bronchi - plural)
note the incomplete rings of cartilage (letter C), smooth muscle, goblet cells
histological bronchioles
have simple columnar or simple cuboidal epithelium and smooth muscle, no cartilage and no goblet cells
* note some look like a "starred" center when contracted, and some look round and smooth when
dilated*
Surfactant, Respiratory Membrane, Pleural Cavity, Visceral Pleura, Parietal
Pleura, Hilum, Lung Lobes (Superior, Middle, Inferior), Oblique Fissure,
Horizontal Fissure, Cardiac Notch, Trachea, Trachealis Muscle, Primary,
Secondary, Tertiary Bronchi, Bronchioles, Terminal Bronchioles, Nasal
Cavity, Pharynx (Nasopharynx, Oropharynx, Laryngopharynx), Larynx, Vocal
Folds, Vestibular Folds, Thyroid Cartilage, Cricoid Cartilage, Epiglottis,
Arytenoid & Corniculate Cartilages, Pulmonary Ventilation, Alveolar
Ventilation, Gas Transport, Oxygen-Hemoglobin Dissociation, Bohr &
Haldane Effects, Hepatopancreatic Ampulla, Stomach Regions (Fundus,
Body, Pylorus), Small Intestine (Duodenum, Jejunum, Ileum), Villi, Plicae
Circulares, Large Intestine (Cecum, Colon, Rectum, Anal Canal), Liver Lobules
& Hepatocytes, Pancreas Ducts & Acini, Salivary Glands (Parotid,
Submandibular, Sublingual), Tooth Histology (Enamel, Dentin, Pulp, Crown,
Root) Exam Questions Complete and Provided with Verified A+ Graded
Rationales Latest Updated 2026
alveolar sacs
clusters of alveoli
alveoli
tiny sacs of lung tissue specialized for the movement of gases between air and blood
visceral pleura (serous membrane that sits on the lungs)
inner layer, lying closer to the lung tissue
parietal pleura
outer layer, lying closer to thoracic wall
,pleural cavity (space between the serous membranes/pleura membranes)
Space between the membranes around the lungs.
apex of the lung
tip or uppermost portion of the lung
base of the lung
lowest part of the lung, resting on the diaphragm
hilum
the point where the bronchi, pulmonary vessels, lymphatic vessels, and nerves enter lung
superior lobe of right lung
Separated from middle lobe by horizontal fissure: receives secondary bronchus
middle lobe of right lung
Separated from superior lobe by horizontal fissure, and lower lobe by oblique fissure: receives
secondary bronchus. only right lung has this lobe
inferior lobe of right lung
Separated from middle lobe by oblique fissure: receives secondary bronchus
, superior lobe of left lung
has cardiac notch: receives secondary bronchus
inferior lobe of left lung
Rests on diaphragm, separated from superior by oblique fissure: receives secondary bronchus
oblique fissure of left lung
separates the inferior from the superior lobe
oblique fissure of right lung
separates the middle lobe from the inferior lobe
horizontal fissure of right lung
Separates superior and middle lobes, joins oblique laterally. only on right lung
histological bronchus (bronchi - plural)
note the incomplete rings of cartilage (letter C), smooth muscle, goblet cells
histological bronchioles
have simple columnar or simple cuboidal epithelium and smooth muscle, no cartilage and no goblet cells
* note some look like a "starred" center when contracted, and some look round and smooth when
dilated*
