28 Sep Name two functions of the nasal cavitymucosa.

Student Name: Click here to enter text.

Access Code (located on the lid of your lab kit

Pre-Lab Questions

1.            Name two functions of the nasal cavitymucosa.

 

2.            Why is the trachea reinforced with cartilaginousrings?

 

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

 

4.            What isasthma?

 

Experiment 1: Microscopic Anatomy of the Respiratory System

 

Table 1: Experimental Observations

 

Respiratory Image                                                           Description of Visible Structure(s)

 

Trachea                                                                               

 

Lung                                                                     

 

Post-Lab Questions

 

1.            Label the arrows in the slide imagesbelow.

 

A-

 

B-

 

C-

 

D-

 

E-

 

F-

 

 G-

 

H-

 

 2.           What structural features of alveoli make them an ideal place for gas exchange?

 

3.            Why is mucus present in thetrachea?

 

4.            What is the specific function of the cilia on the walls of thetrachea?

 

Experiment 2: Virtual Model – The Respiratory System

 

Insert screenshot of the epiglottis:

 

 Insert screenshot of the middle lobe of the lung:

 

Insert screenshot of the nasal caviy:

 

 

 

Post-Lab Questions

 

1.            Whathappenstothepressureinsidethethoraciccavitywhenthediaphragmcontracts? What effect does this have on thelungs?

 

2.            Doesdeoxygenatedbloodbecomeoxygenatedintheupperrespiratorytract,thelungs,or thediaphragm?

 

3.            Is the trachea superior or inferior to thediaphragm?

 

 4.           Which component is more medial: the right lung or the trachealbifurcation?

 

5.            Whatisthemostinferiorlylocatedorganoftherespiratorysystem?

 

Experiment 3: Understanding Lung Mechanics

 

Table 2: Understanding Lung Mechanics Observations

 

Squeezed Bottle Observations (Step 3)                                                 Released Bottle Observations (Step 4)

 

Post-Lab Questions

 

1.            What happens to the balloon?Why?

 

2.            What would happen if the seal at the base of the bottleleaked?

 

3.            What causes a collapsed lung? Insufficientsurfactantinanewborn

 

4.            Is a collapsed lung functional? Why or whynot? Click here to entertext.

 

Experiment 4: Spirometry

 

Patient A

 

Table 1: Patient A Spirometry Data

 

                                                Predicted Values                              Resting Value                                    Exercise Value

 

FVC                                       

 

FEV1     

 

FEV1/FVC           

 

Observations of spirometry graph shapes:

 

Patient B

 

Table 2: Patient B Spirometry Data

 

                                Predicted Values              Resting Value                    Exercise Value

 

FVC       

 

FEV1     

 

FEV1/FVC           

 

 

 

Observations of spirometry graph shapes:

 

Patient C

 

Table 3: Patient C Spirometry Data

 

                Predicted Values              Resting Value    Exercise Value

 

FVC       

 

FEV1     

 

FEV1/FVC           

 

Observations of spirometry graph shapes:

 

Patient D

 

Table 4: Patient D Spirometry Data

 

                Predicted Values              Resting Value    Exercise Value

 

FVC       

 

FEV1     

 

FEV1/FVC           

 

Observations of spirometry graph shapes:

 

Patient E

 

Table 5: Patient E Spirometry Data

 

                Predicted Values              Resting Value    Exercise Value

 

FVC       

 

FEV1     

 

FEV1/FVC           

 

Observations of spirometry graph shapes:

 

Post-Lab Questions

 

1.            Based on the results of the spirometry test, is Patient A effectively managing his asthma symptomswithhisinhalermedication?Explainyouranswerusingthedatacollectedduringthe test.

 

2.            Basedontheresultsofthespirometrytest,isPatientBsufferingfromasthma?Explainyour answer using the data collected during thetest.

 

3.            Based on the results of the spirometry test, does Patient C qualify for lung surgery? Explain your answerusingthedatacollectedduringthetest.Answershouldbeintermsofphysiologyandnot simply a list of types ofinjuries.

 

4.            Based on the results of the spirometry test, what do you think is the cause of Patient D’s respiratorysymptoms?Explainyouranswerusingthedatacollectedduringthetest.Conduct your own external research ifnecessary.

 

5.            Basedontheresultsofthespirometrytest,isPatientEsufferingfromasthma?Explainyour answer using the data collected during thetest.

 

6.            Whataresomepotentialdrawbackstorelyingonspirometrytodiagnoserespiratoryconditions? Conduct your own external research ifnecessary.

 

Is the patient appropriately dressed? Some clothing obstructs breathing from being too tight.

 

Experiment 5: Fetal Pig Dissection: The Respiratory System

 

Post-Lab Questions

 

1.            Describe the interior lining of thetrachea. smooth to touch presence ofcilia

 

2.            Were theremanyorfew vesselsservingasconduitsbetweenthelungsandtheheart?Why is thisimportant?

 

3.            Describethefunctionofthediaphragmduringinhalationandexhalation.

 

Insert photo of your pig’s exposed lungs with your name and access code handwritten clearly in the background: