Lab 13 The Respiratory System BIO202L
Student Name:
Access Code (located on the lid of your lab kit): AC-54NRLKM
Pre-Lab Questions
1. Name two functions of the nasal cavity mucosa.
It moistens, warms and filters the air for our body to breath better via nostrils.
2. Why is the trachea reinforced with cartilaginous rings?
When we swallow the food these rings allow the cartilage to expand esophagus so the food
goes in right passageway. It help provide structure.
3. Describe the path a molecule of oxygen takes to get to body tissue, starting with the nares.
Start with nasal cavity, then pharynx and goes to trachea to bronchi and bronchioles , alveoli,
where exchange of the oxygenated carboondioxide happens then reaches. arota, artery and
ends up with capillaries.
4. What is asthma?
Asthma causes problem in lungs by making them inflame. Makes breathing for a person
difficult due to swelling in airway. Also produce thick mucus makes breathing difficulty.
Experiment 1: Microscopic Anatomy of the Respiratory System
Table 1: Experimental Observations
Respiratory Image Description of Visible Structure(s)
Noticed in trachea cilia, goblet cells, columnar
Trachea
cells and a basement membrane present.
Noticed bronchioles, alveoli, capillaries,
Lung bronchi and alveolar sac.
Post-Lab Questions
1. Label the arrows in the slide images below.
A- these are goblet cells.
B- are basement membrane.
C- its connective tissue.
D- its cilia.
E- are bronchioles.
F- its bronchi.
G- are alveolar sac.
, Lab 13 The Respiratory System BIO202L
H- its alveoli.
Student Name:
Access Code (located on the lid of your lab kit): AC-54NRLKM
Pre-Lab Questions
1. Name two functions of the nasal cavity mucosa.
It moistens, warms and filters the air for our body to breath better via nostrils.
2. Why is the trachea reinforced with cartilaginous rings?
When we swallow the food these rings allow the cartilage to expand esophagus so the food
goes in right passageway. It help provide structure.
3. Describe the path a molecule of oxygen takes to get to body tissue, starting with the nares.
Start with nasal cavity, then pharynx and goes to trachea to bronchi and bronchioles , alveoli,
where exchange of the oxygenated carboondioxide happens then reaches. arota, artery and
ends up with capillaries.
4. What is asthma?
Asthma causes problem in lungs by making them inflame. Makes breathing for a person
difficult due to swelling in airway. Also produce thick mucus makes breathing difficulty.
Experiment 1: Microscopic Anatomy of the Respiratory System
Table 1: Experimental Observations
Respiratory Image Description of Visible Structure(s)
Noticed in trachea cilia, goblet cells, columnar
Trachea
cells and a basement membrane present.
Noticed bronchioles, alveoli, capillaries,
Lung bronchi and alveolar sac.
Post-Lab Questions
1. Label the arrows in the slide images below.
A- these are goblet cells.
B- are basement membrane.
C- its connective tissue.
D- its cilia.
E- are bronchioles.
F- its bronchi.
G- are alveolar sac.
, Lab 13 The Respiratory System BIO202L
H- its alveoli.
