Ch 5: Nerves & the Senses
About This Chapter
Who's It For?
Anyone who needs help learning or mastering nerves and the senses material will benefit from the lessons in this chapter. There is no faster or easier way to learn about nerves and the senses. Among those who would benefit are:
- Students who have fallen behind in understanding nerves and the senses.
- Students who struggle with learning disabilities or learning differences, including autism and ADHD
- Students who prefer multiple ways of learning science (visual or auditory)
- Students who have missed class time and need to catch up
- Students who need an efficient way to learn about nerves and the senses
- Students who struggle to understand their teachers
- Students who attend schools without extra science learning resources
How It Works:
- Find videos in our course that cover what you need to learn or review.
- Press play and watch the video lesson.
- Refer to the video transcripts to reinforce your learning.
- Test your understanding of each lesson with short quizzes.
- Verify you're ready by completing the Nerves and the Senses chapter exam.
Why It Works:
- Study Efficiently: Skip what you know, review what you don't.
- Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
- Be Ready on Test Day: Use the Nerves and the Senses chapter exam to be prepared.
- Get Extra Support: Ask our subject-matter experts any question about nerves and the senses. They're here to help!
- Study With Flexibility: Watch videos on any web-ready device.
Students Will Review:
This chapter helps students review the concepts in a nerves and the senses unit of a standard science course. Topics covered include:
- How the cranial nerves are involved in motion and sensation of the face and mouth
- The function of the vagus nerve
- Mechanisms of receptors in sensation
- How messages are transmitted from receptors to the brain to create sensations
- Types of pain and how they are transmitted and treated
- Types, functions and components of sensory nerves
- How the optic nerve takes information from the receptors of the eye to the brain to enable vision
- The tiny components of the inner ear and how they work with the auditory nerve to enable hearing
1. Cranial Nerves of the Face and Mouth: Motion and Sensation Functionality
We wouldn't be able to talk, taste, chew, or swallow without the cranial nerves of our face and mouth. Find out how these nerves help us move our tongue and enjoy everything from kissing to food to conversation.
2. Cranial Nerves: The Vagus Nerve and its Functionality
Find out what the vagus nerve (cranial nerve X) does in your body. While perhaps not as impressive, you'll also find out what the accessory nerve (cranial nerve XI) does and why it is important to the vagus nerve.
3. Receptor Processes & Sensory Mechanisms
How do we receive and interpret information from the world around us? In this lesson, we'll look at an overview of sensation and perception, including the differences between the two and the basic process of moving from one to the other.
4. Sensory Coding: Getting Messages from Receptors to Your Brain
When you stub your toe, you feel pain. But that's not all to the story: information about what your toe is feeling has to travel up to your brain. In this lesson, we'll look at the process of sending information from sensory receptors to the brain.
5. 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.
6. 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.
7. How Receptors of the Eye Conduct Information via the Optic Nerve
You will learn how your eyes are able to see the image in front of you thanks to special cells called photoreceptors. In addition, these receptors have very important proteins called rhodopsin and photopsin; and all of these things work together to transmit information to your optic nerve.
8. 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.
9. 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.
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