Questions:

1. Are you able to wiggle your nose?
2. Which tissue makes it possible to wiggle your nose?
3. Is your nose rigid or soft?
4. Which tissue provides the rigidity in the nose?

View the slide on very low magnification and identify the following regions:

1. The attached side of the slide.
2. The "pointy" side of the nostril.
3. The externally visible surface of the nostril.
4. What is typical of the external surface of the nostril?
5. The internal surface of the nostril.
6. What is typical of the internal surface of the nostril?
7. The cartilage of the nostril.
8. Name the cartilage of the nostril.
9. The central area of the nostril.
10. What are the two main tissues making up the central area of the nostril?

Enlarge the view as appropriate and identify microscopically:

1. Skin and hypodermis
2. Muscle
3. Cartilage
4. Skin and hypodermis in the vestibule of the nostril
5. On which surface of the nostril do you find hair?
6. On which surface of the nostril do you find glands?
7. Name the glands.

Draw and annotate:

A line diagram indicating the layers comprising the nostril.

1. To the line diagram, add all the components discussed above.
2. Label all components.
3. For each component, elaborate by making a connection with other content you know. The connection can be with histology, anatomy, physiology, pharmacology or pathology.

1. What are the differences between the hair and sebaceous glands of the skin and the vestibule?
2. What type of cartilage is found here?

Microscope