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- Learn the functions of the sympathetic and parasympathetic nervous systems.
- Explain how body temperature and homeostasis are regulated in humans.
- Understand how the sympathetic and parasympathetic nervous systems respond to negative and positive feedback.
- Describe the structure and function of neurons.
- Categorize the different types of neurons.
- Explain how the myelin sheath facilitates cell signaling.
- Describe how neuroglia provide support and protection to the neurons in the brain.
- Name the different types of sensors and receptors and describe their functions.
- Understand the functions of the sensory nerves and receptors in muscles and tendons.
1. The Sympathetic and Parasympathetic Nervous Systems
In this lesson, you'll learn about two subdivisions of the autonomic nervous system - the sympathetic and parasympathetic nervous systems. Watch as a hiker, Phil, runs away from a terrifying bear and see how these systems react to the impending danger!
2. Functions of the Nervous System
In this lesson, we'll watch Timmy as he plays in his backyard. Watch what happens when he tries to catch a butterfly, hears a mean dog bark, and scrapes his knee. All of Timmy's reactions are tied to his nervous system. For a full explanation of what goes on in the human nervous system, check out the video!
3. Homeostasis and Temperature Regulation in Humans
Do you wonder how your body is able to maintain a consistent temperature? Have you ever questioned why you get goosebumps when you're cold? This lesson will introduce you to homeostasis and answer your questions about body temperature regulation and reactions, like goosebumps.
4. Positive and Negative Feedback in the Sympathetic and Parasympathetic Nervous System
In this lesson, you'll study positive and negative feedback in the sympathetic and parasympathetic nervous systems. You'll also learn why we have a fight or flight instinct and how it works.
5. The Structure and Function of Neurons
In this video lesson, you'll learn about neurons, which are specialized cells in the nervous system. Check out how far neurons can send signals throughout the body and how depolarization is much like 'the wave' at a football game.
6. Types of Neurons: Sensory, Afferent, Motor, Efferent & More
There are many types of neurons in your body that help you see, smell, hear, and move. In this lesson, you'll learn more about afferent, efferent, sensory, and motor neurons.
7. The Myelin Sheath, Schwann Cells & Nodes of Ranvier
The myelin sheath is an essential part of our nervous system. Learn more about this neuron component, explore the nodes of Ranvier, and discover why Schwann cells are crucial for neuron survival.
8. Neuroglia: Function & Definition
In this lesson, you'll learn about the unsung heroes of your nervous system. These cells don't get a lot of attention, but without them, it would be difficult for your neurons to do their job and protect themselves against invaders.
9. 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.
10. Sensory Nerves and Receptors of Muscles and Tendons
Your body is able to sense its position in the environment. This is critical for movement, playing basketball, or even sitting still. Find out what this means as we explore proprioceptors, muscle spindles, and tendon organs.
11. Sensory Neurons: Definition & Function
In this video, you'll learn about sensory neurons and how they give rise to your five senses. Also, you'll explore the brain's role in processing transmissions from sensory neurons.
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