About This Chapter
Overview of Nerves & Senses - Chapter Summary
The entertaining lessons in this chapter help you better understand nerves and senses. Review the lessons at home or on-the-go to learn more about sensory nerves, the senses of sight and smell, somatosenses and more. If you need more information during your review of the lessons, quickly and easily send your questions to our experts via the Dashboard. When ready, assess your knowledge of topics covered in this chapter by taking multiple-choice quizzes and a practice exam. In no time, you will be able to:
- Point out various types and mechanisms of pain
- Survey types and functions of sensors and receptors
- Describe the sense of sight and the sense of smell
- Outline the five types of taste
- Explain ways taste buds, nerves and smell impact taste
- Recognize the parts and functions of the ear
- Consider the basics of sensation and perception
- Evaluate the function of somatosenses
- Analyze case studies focusing on facial expressions, the power of touch and distinct responses
1. Pain: Types, Mechanisms, and Treatment
This lesson will cover the basics of pain. We'll discuss the different types of pain, the basic mechanism of pain, what structures are involved, and how your own body or drugs try to stop it.
2. Sensory Nerves: Types and Functions of Sensors and Receptors
In this lesson, we will explore what gives you the ability to sense temporary and sustained pressure, touch, and vibration. In addition, we'll touch base on certain nerves that allow you to sense the coolness of an ice cube in your mouth or the sensation of warmth on your skin.
3. The Sense of Sight: Motion, Nerves and Eye Movements
Find out how cranial nerve II, cranial nerve III, cranial nerve IV, and cranial nerve VI help you see and control the movement of your eyes. You'll learn if there's a difference between those cranial nerves and that of the abducens nerve, oculomotor nerve, optic nerve, and the trochlear nerve.
4. The Sense of Smell: Olfactory Bulb and the Nose
How does the sense of smell relate to your eyes? Why can we smell something in the first place? These questions and many more will be answered as we look into the olfactory bulb, chemoreceptors, cranial nerve I, and the olfactory nerve.
5. The Five Types of Taste
Taste is often organized into five different categories. Understanding these categories can help you make sense of what you are experiencing when you eat. This lesson will teach you about the five types of taste and things that can go wrong with them.
6. Impact of Taste Buds, Nerves & Smell on Taste
If you've ever wondered how we taste our food, this lesson can help answer your questions. We'll look at what taste buds actually are, what role smell plays in flavor, and how nerves in our tongue and nose carry those messages to the brain.
7. The Ear: Hair Cells, Organ of Corti & the Auditory Nerve
In this lesson, you'll learn the most important things about cranial nerve VIII, the auditory nerve and the Organ of Corti. In addition, you'll realize that even though you may not like it, your ears are quite hairy thanks to hair cells.
8. Intro to Sensation and Perception
What is the difference between sensation and perception, and how do they work? You'll get to see how the mind handles and differentiates between multiple sensations in this introduction.
9. Somatosenses: Definition and Function
The somatosensory system is your sense of touch. While this sounds quite simple, there is so much more to it than just feeling things through your fingers. This lesson discusses the definition and function of the somatosenses.
10. Psychology Case Study: Facial Expressions & Distinct Responses
While facial expression nuances are specific to culture, it has been found that there are some distinctly universal facial expressions. Neurological responses to these expressions give evidence for their universality.
11. Psychology Case Study: Power of Touch & Distinct Responses
Understanding the power of touch can really affect our comprehension of human psychology and relationships. This lesson looks at research on touch and distinct responses, introducing you to the impact touch can have.
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