Lung Dissection Lab Worksheet
A Grade 12 science worksheet on lung dissection, covering anatomical structures, physiological functions, and safety protocols.
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Lung Dissection Lab Worksheet
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Carefully read all instructions before beginning the dissection. Work in groups and ensure proper safety measures are followed at all times. Answer all questions thoroughly and neatly.
1. Which of the following structures is responsible for gas exchange in the lungs?
Bronchi
Trachea
Alveoli
Diaphragm
2. What is the primary function of the pleural membranes surrounding the lungs?
To facilitate gas exchange
To protect the lungs and reduce friction
To produce surfactant
To pump blood to the lungs
1. The windpipe, also known as the , leads air from the pharynx to the bronchi.
2. The smallest airways in the lungs are called , which terminate in the alveoli.
3. The process of taking air into the lungs is called , while expelling air is called exhalation.
1. Describe the texture and appearance of a healthy lung. How might a diseased lung differ?
2. Explain the function of cartilage rings in the trachea and bronchi.
1. The right lung typically has two lobes, while the left lung has three.
True
False
2. Oxygen diffuses from the alveoli into the capillaries, and carbon dioxide diffuses from the capillaries into the alveoli.
True
False
Identify the labeled structures in the diagram of the human lungs below.
1.
2.
3.
4.