Lab 13 The Respiratory System BIO202L

Student Name: Hadiatoulaye Diallo

Access Code (located on the lid of your lab kit): AC-RQBCTX

Pre-Lab Questions

”1. Name two functions of the nasal cavity mucosa.”

Moistens, warms and also filters the air.

”2. Why is the trachea reinforced with cartilaginous rings? ”

Because, it help the passageway stay open, even when there is too much force caused by

breathing.

”3. Describe the path a molecule of oxygen takes to get to body tissue, starting with the nares. ”

Nose (nares)  pharynx  epiglottis  larynx  in the trachea

”4. What is asthma? ”

Narrowing/swelling of the airways.

Experiment 1: Microscopic Anatomy of the Respiratory System

Table 1: Experimental Observations

Respiratory Image Description of Visible Structure(s)

Trachea The cilia, columnar and goblet cells

Lung Capillaries, Alveolar sac, Alveoli and the

bronchi

Post-Lab Questions

”1. Label the arrows in the slide images below. ”

A- Goblet cell

B- Basement membrane

C- Connective tissue of lamina propria

D- cilia lumen

E- Blood vessel

F- Bronchi

G- Alveolar sac

H- Alveoli

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Lab 13 The Respiratory System BIO202L

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