Demonstrating Lung Inflation in a Sheep Pluck 13. Does the lung inflate part by part or as a whole, like a balloon? 14. What happened when the pressure was released?
Added by Mary M.
Close
Step 1
A sheep pluck typically includes the lungs, heart, and trachea, and is used to demonstrate how lungs inflate and deflate. Show more…
Show all steps
Your feedback will help us improve your experience
Adi S and 74 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Demonstrating Lung Inflation in a Sheep Pluck A sheep pluck includes the larynx, trachea with attached lungs, the heart and pericardium, and portions of the major blood vessels found in the mediastinum. Don disposable gloves, obtain a dissecting tray and a fresh sheep pluck (or a preserved pluck of another animal), and identify the lower respiratory system organs. Once you have completed your observations, insert a hose from an air compressor (vacuum pump) into the trachea, and allow air to flow alternately into and out of the lungs. Notice how the lungs inflate. This observation is educational in a preserved pluck, but it is a spectacular sight in a fresh one. When a fresh pluck used, the lung pluck changes color (becomes redder) as hemoglobin in trapped RBCs becomes loaded with oxygen. Dispose of the gloves in the autoclave bag immediately after use.
Sri K.
The Respiratory System EXPERIMENT 3: UNDERSTANDING LUNG MECHANICS Data Tables Table 2: Understanding Lung Mechanics Observations Squeezed Bottle Observations (Step 3) Released Bottle Observations (Step 4) Post-Lab Questions 1. What happened to the balloon? Why? 2. What would happen if the seal at the base of the bottle leaked? 3. What causes a collapsed lung? 4. Is a collapsed lung functional? Why or why not?
Nimat P.
Activity 3: Examining a Sheep Pluck 1. Describe the texture of the sheep trachea. Describe the texture of the sheep lung. 2. How do sheep lungs differ from human lungs? 3. Trace the pathway of the compressed air as you forced it into the trachea.
Madhur L.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD