Muscle Contraction Made EASY: What REALLY Happens During Exercise
How do muscles actually contract? There's a lot involved in the process. And in this video, we talk about muscle contraction at the molecular level. We'll discuss sarcomeres, actin, myosin, the muscle action potential and the roles of ATP and calcium ion.
Press play and enjoy.
Video Chapters:
00:01 Intro
00:15 Biceps Curls During Weight Lifting: Overview
00:33 Skeletal Muscles
00:49 Muscle Fibers, myofibrils, sarcomeres
01:00 How Muscle Contraction Happens
01:49 How the Brain Signals the Biceps to Contract
02:13 Neuromuscular Junction
02:20 How Acetylcholine Works at the Neuromuscular Junction
03:15 How Myosin and Actin Filaments Work Together During Muscle Contraction
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The Brain Parts Every Biology Student Needs to Know
What are the major parts of the brain? In this video, that’s exactly what you’re going to learn. We’ll talk about the anatomy as well as the function.
00:00 Intro
00:32 The Cerebrum
01:04 Cerebral Cortex
01:20 Longitudinal Fissure
01:38 Corpus Callosum
01:51 Gyri and Sulci
02:14 The Lobes
02:56 Functions
04:03 Outro
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The Action Potential in All Its Glory - A Review/Summary
What does it take for an action potential to take place? What are depolarization, repolarization, and hyperpolarization? How are voltage-gated ion channels involved? In this video, you will get answers to all these questions.
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Four Ways Your Immune System Learns to Attack EVERYTHING!
You’re infected. Something harmful is in your body and you gotta get rid of it. In this video, I’m gonna talk about four ways your immune system attacks everything.
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The Cardiac Cycle is SO EASY! Stop Making it Hard!
Are you struggling to understand the Cardiac Cycle? Well, struggle no more. In this video, I walk you through the entire thing, but instead of making it complicated, we make it simple (and easy to understand).
00:00 Intro
00:35 Definition
01:02 Entire Cycle
01:39 Atrial Systole
03:16 Systole
04:26 Isovolumetric Contraction
05:12 Ejection
06:22 Isovolumetric Relaxation
06:55 Passive Filling
07:21 Phonocardiogram
08:19 Outro .
Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/
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How to Get an A in Biology
Struggling in that biology class? You're not alone. Don't worry - I got a D in my first biology class. But then I learned how to study. In this video, I share some of my best tips. Check it out.
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EVERY Human Would Die Without This Cell
What if I told you that there’s one cell in your body that if you don’t have it, you will die? And I’m not saying you might die. I’m telling you that you WILL die if you don’t have it. What is it?
00:00 Intro
00:16 Setting the Scene
01:16 Adaptive Immune Response
01:59 Antigen Recognition and Presentation
03:05 T Cell Receptors
04:38 T Cell Clones
05:20 Outro
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How to do an ECG at Home | Holter Monitoring with Wellue
Holter monitors is a ECG/EKG device that you can wear throughout the day to track your heart activity. A doctor might have you use one for 24 hours to be able to determine if there are any abnormalities with your heart function.
This video is a review of the Wellue ECG Recorder with AI Analysis as well as an overview of electrocardiograms. Check it out.
Get Your Wellue ECG Recorder - https://getwellue.com/products/heart-health-monitor?ref=biology
IMPORTANT: Use the discount code "Biology" to get 10% off.
RELEVANT RESOURCES:
- Blog post: https://www.interactive-biology.com/ecg-at-home-wellue-ecg-recorder/
- Patreon: http://patreon.com/interactivebiology
- Video on the ECG: https://www.youtube.com/watch?v=4vkbywows-o
TIMESTAMPS:
00:00 Intro
00:26 About the ECG
01:39 ECG Devices
02:45 Wellue ECG Recorder
03:24 Chest Strap Method
04:27 With Electrode Patches
06:12 Wellue App
07:28 AI Analysis
08:28 Sample ECG Report
11:19 Downsides
12:25 Conclusion
13:03 Outro Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ .
Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/
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T Cell Development and Maturation - T Cells are COOL!
T-cells play a crucial role in the adaptive immune response – our ability to recognize specific antigens on foreign invaders like pathogens. In this video, we’re going to look at how they develop.
RESOURCES:
- Blog Post - https://www.interactive-biology.com/017
- Patron - https://www.interactive-biology.com/patreon
00:00 Intro
00:19 T Cells in Bone Marrow
01:07 In the Thymus
01:55 CD4, CD8
02:42 Positive Selection
03:17 Negative Selection
04:24 Helper and Cytotoxic T Cell
05:29 Summary
05:39 Outro
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The Complement System Made Easy
The complement system involves a series of proteins found in the blood that are part of the immune response. But what exactly are they, and how do they function.
There are two pathways involved: The classical pathway and the alternative pathway. Once you know the classical pathway, you also know the alternative pathway because it's part of the classical pathway.
00:00 Intro
00:33 Complement System Proteins
01:02 The Two Pathways
01:32 The Classical Pathway
04:07 The Alternative Pathway
04:39 Pathways Review
05:29 Outro
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The Cells of Innate Immunity (and Mechanism)
The Innate immune response is a general response your immune system has against foreign invaders. And there are special cells involved in the process. In this video, we'll cover those cells and the roles they play.
Link to Notes: https://www.interactive-biology.com/8934/innate-immunity-cells/
00:00 Intro
00:19 Immune Response Review
01:35 Phagocytes
01:57 Macrophages
03:24 Neutrophils
04:11 Monocytes
04:44 Mast Cells
05:27 Eosinophils
06:02 Basophils
06:17 NK Cells
06:59 Dendritic Cells
07:51 Biology notes
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An Introduction to the Immune System
The immune system is a pretty complex system that includes a number of different cell types and organs. Their function is to basically block, destroy or at least neutralize any harmful substances that could enter the body.
And when we look at the immune system, we see that there are three lines of defense. These are three different mechanisms that these foreign invaders need to overcome in order to get into our bodies to cause harm.
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Drugs That Affect the Cardiovascular System
The circulatory system, like every other system in the body, is very important. And when there are problems with your cardiovascular system, your doctor may prescribe various medications to help. Let's take a look at five kinds of cardiovascular medications and how they work.
Relevant resources:
- Blog post: https://www.interactive-biology.com/drugs-affect-cardiovascular/
- Patreon: http://patreon.com/interactivebiology
00:00 Intro
00:25 Anticoagulant Drugs
01:39 ACE Inhibitors
02:27 Beta-Blockers
03:58 Calcium Channel Blocker
04:52 Diuretics
05:59 More drugs Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ .
Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/
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7 Fun Facts About Your Blood You Didn't Know
What do you know about blood? I’ll share with you 7 fun (and very interesting) facts that you probably didn’t know.
Relevant links:
- Detailed blog post: https://www.interactive-biology.com/7-fun-facts-about-your-blood/
- Support us on Patreon: https://www.patreon.com/interactivebiology
00:00 Intro
00:15 RBC production
00:39 Blood vessel length
01:08 Blood speed
01:37 Most common blood type
02:00 Blood groups
02:51 Donated blood components
03:16 Body part without blood
03:37 Did you know?
03:57 Patreon Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ .
Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/
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Blood Typing Using the Eldon Blood Typing Kit
What blood type do you have? Is it A, B, AB, or O. And are you RhD positive or negative. In this video, you will learn how to use the Eldon Blood Typing Kit to determine your blood type at home.
00:00 Intro
01:11 Blood Typing Kit Contents
02:21 Additional Supplies Needed
02:50 EldonCard Explanation
04:25 Doing the test
08:31 Interpreting the Results
08:57 Storing the Results
09:16 Outro Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ .
Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/
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Blood Types Physiology (ABO and Rh Blood Groups)
Do you know your blood type? Even more - do you know what it means? By the end of this video, you'll understand the physiology behind blood types. You'll also understand the significance of the ABO and Rh Blood Grouping Systems.
00:00 Intro
00:16 Immune System Function
00:35 Antigens and Antibodies
01:00 ABO Blood Groups
01:49 Antibodies and Agglutination
03:24 Blood Transfusions
04:28 Rh Blood Groups
05:14 Universal Recipient and Donor
05:34 Outro Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ .
Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/
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Hemostasis | How We Stop Bleeding
Hemostasis is the process by which we stop bleeding. In this video, we’re going to get into the three mechanisms involved in the process of hemostasis - vascular spasm, platelet plug formation, and coagulation.
00:00 Intro
01:00 Vascular Spasms
01:55 Platelet Plug Formation
03:35 Coagulation
04:01 Intrinsic and Extrinsic Pathways
04:36 Common Pathway
05:09 Summary Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ .
Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/
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Thrombocyte/Platelet Structure and Function
In this video, we will look at the structure and function of platelets/thrombocytes - important components in the blood that are involved in blood clotting/hemostasis. By the end of the video, you’ll have a good understanding of what platelets are and how they do what they do.
00:00 Intro
00:19 Hemostasis
00:49 Thrombocytes -- a misnomer
01:16 How Platelets are formed from Megakaryocutes
01:58 Platelet Structure
02:23 Other functions of platelets
03:09 Platelet disorders | Thrombocytopenia and Thrombocytosis Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ .
Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/
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Disorders of Leukocytes/White Blood Cells - An Overview
Leukocytes or White Blood cells are very important cells in your blood. They function primarily as the defenders of the body, protecting your body when things go wrong or when foreign invaders like bacteria or parasites try to cause problems. But what happens when things go wrong with these leukocytes.
00:00 Intro
00:22 White Blood Cells
01:02 Leukopenia
01:53 Leukocytosis
03:03 Leukemia
04:00 Lymphoma
04:30 More info Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ .
Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/
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White Blood Cells Introduction (aka Leukocytes) | How they Work
White blood cells, a.k.a. Leukocytes. These are the second most common cell type in the blood. But what do we know about their structure and what exactly do they do? Well, that’s what we cover in this video. Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ .
Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/
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Disorders of Red Blood Cells - Anemia Problems
Erythrocytes a.k.a. Red Blood Cells help us transport oxygen throughout the body. But what happens when they don’t work the way they should? Let's find out.
00:00 Intro
00:19 Oxygen and Hemoglobin
00:45 Anemia
01:07 Symptoms of Anemia
01:36 3 Causes of Anemia
01:59 Loss of Blood
02:55 Decreased/Faulty RBC Production
03:22 Sickle Cell Anemia
04:25 Iron-deficiency Anemia
05:57 Vitamin-deficiency Anemia
07:06 Excessive Destruction of RBCs
07:35 Summary and Outro Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ .
Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/
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Red Blood Cell Structure and Function | Anatomy and Physiology
Red Blood Cells are unique cells. And in this video, we talk about their structure and function. Learn about their biconcave shape, the missing organelles, details about hemoglobin and gas exchange.
00:00 Intro
00:47 Biconcave Shape
02:05 Cell Membrane Structure
02:33 Missing organelles
03:43 Hemoglobin
04:57 Gas Exchange
06:11 Dealing with CO2
06:52 Disorders of Erythrocytes Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ .
Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/
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Hemopoiesis / Hematopoiesis | How Blood is Made
In this video, we discuss how blood cells are made - everything from red blood cells to white blood cells and platelets.
00:00 Intro
00:13 Where Blood Cells are Made
01:41 Hemocytoblasts
02:58 Lymphoid Stem Cells Line
05:34 Myeloid Stem Cells Line Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ .
Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/
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What's in Your Blood
In this video, I talk about the components found in the blood and their functions. We are going to talk about the Complete Blood Count (CBC) test that your doctor orders, red and white blood cells, platelets, and proteins like albumin, globulins, and fibrinogen.
By the end, you'll have a good feel for what's in the blood.
Videos in this series:
- Blood Structure and Function - https://youtu.be/ojDKOgzXj0Q
00:00 Intro
00:21 Complete Blood Count
01:00 Red Blood Cells
01:39 Buffy Coat
02:26 Plasma
03:00 Quiz
03:44 Albumin
03:27 Globulins
04:56 Fibrinogen
05:21 Other substances
05:56 Quiz Answers
06:26 Hemopoiesis (next video) Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ .
Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/
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Blood Structure and Function: Why is Blood Important
In this video, we'll dig into the components of blood and talk about why it's important. We talk about the erythrocytes (red blood cells), Leukocytes (white blood cells), and thrombocytes (platelets) and show how they contribute to the 3 main functions of blood: transportation (nutrients, hormones, and oxygen), protection (think: immune system), and homeostasis).
00:00 Intro
00:18 Blood Structure
01:07 Transportation
03:30 Protection
04:13 Quiz Questions
05:28 Homeostasis
07:03 Quiz Answers
07:38 What’s in the Blood Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/ .
Download a PDF copy of The Cardiac Cycle Made Easy here 👉 https://www.interactive-biology.com/cardiaccycle/
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