Immunity Lab Report Respiratory System Lab Report

BioLab3

Respiratory System Lab Report

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The lab report is unique each semester and checks have been put into place to ensure students are doing their own work. Copying from other students or from outside sources will result in a zero on the accompanying lab quiz.

1. Human Respiratory Anatomy

1. What is the location and function of the epiglottis?

1. Why are alveoli important to respiration?

1. Compare external intercostal muscles with internal intercostal muscles.

1. Fetal Pig Anatomy

1. Refer to Lab, Exercise 4 Step 1. What is the name of the structure in the fetal pig oral cavity that is labeled “D”?

1. Label the parts of the fetal pig thoracic cavity.

A

D

E

B

C

1. What is the muscular partition that aids in inhalation?

1. Ventilation

1. What is normal pressure in the lungs?

1. Refer to Lab, Exercise 6. What happens in the bell jar when the diaphragm is pulled down? How does this relate to breathing in the lungs?

1. What happens to the pressure inside the lungs when the volume increases?

1. What happens to your rib cage during inspiration?

1. Spirometry

1. What is expiratory reserve volume? What is the average amount of ERV?

1. How is vital capacity (VC) calculated?

1. Refer to Lab, Exercise 8. Construct a graph showing the relationship between vital capacity (X axis) and age (Y axis) for all students. Label your axes. Sign, date, and prepare an image of your drawing, and include it with your lab report.

1. Control of respiration

1. What is the most important stimulus that controls ventilation?

1. Refer to Lab, Exercise 9 and record your results below.

Record the number of times you breathe in three minutes.

Divide by three to calculate your average respiratory rate.

Measure how long you can hold your breath after a restful inspiration.

Run in place for 2 minutes, then measure how long you can hold your breath after a restful inspiration.

1. How does each of the following affect the level of carbon dioxide in the blood?

Summary Questions

1. How are volume and pressure related during breathing?

1. What is the name of the structures that form the two branches of the trachea?

1. Describe the location and function of the cartilaginous rings.

1. Where is the uvula located?

1. Where is the heart located in the fetal pig?

1. Name the four lung volumes which, when combined, give the total lung capacity.

1. Name an instrument used to measure lung volumes.

1. Is breathing entirely voluntary? Explain.

1. Which skeletal muscles contract during each of the following?

Restful Inspiration:

Forced Inspiration:

Passive Expiration:

Forced Expiration:

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