Professor Dave Explains
Neurotransmitters Type, Structure, and Function
We know that neurotransmitters are signaling molecules that travel across the synaptic space to interact with receptors and propagate signals from one neuron to the next. But what are these molecules? What are their structures? How do...
Curated Video
Osmoregulation: Maintaining the Balance of Water and Mineral Ions in the Body
This video is about osmoregulation, which is the control of the balance of water and mineral ions in the body. The video explains the importance of maintaining the correct balance of water in cells, as cells that gain or lose too much...
Catalyst University
Overview of Metabolism [Part 2] | The Citric Acid Cycle
This video is part of a series in which we do an overview of metabolism and pathways. Specifically, this video covers the citric acid [Krebs] cycle and the basics of NADH, FADH2, and electron transport.
JJ Medicine
Gluconeogenesis Pathway: Overview, Enzymes, Co-Factors and Precursors
Gluconeogenesis Pathway lesson: An In-Depth Overview of Required Enzymes, Co-Factors and Precursors. Hey everyone! In this lesson you will learn about the gluconeogenesis pathway, including an in-depth overview of the pathway, where...
Institute of Human Anatomy
Understanding the Physiology of Stress and its Health Consequences
This video discusses the physiological response to stress, including the activation of the sympathetic nervous system and the release of cortisol. It explores how these responses evolved to deal with primitive stressors and how they can...
JJ Medicine
Lead Poisoning (Lead Toxicity) | Sources, Pathophysiology, Signs & Symptoms, Diagnosis, Treatment
Lead Poisoning (Lead Toxicity) | Sources, Pathophysiology, Signs & Symptoms, Diagnosis, Treatment Lead Poisoning (also known as Lead Toxicity) is a condition involving exposure and increased levels of lead in the blood. Lead is a heavy...
Catalyst University
Overview & Comparison of Water- vs Lipid-Soluble Hormones
This video includes a basic introduction to the endocrine system and then a comparison of the signaling between water-soluble and lipid-soluble hormones.
Catalyst University
Pancreatic and Brush Border Enzymes of the Small Intestine
Here, we discuss the functions of the major brush border and pancreatic enzymes of the small intestine. Chapters View all Physiology of the Small intestine 0:12 The Small Intestine: The Brush Border 1:57 The Small intestine: Brush Border...
Catalyst University
Post-Transcriptional Modification of mRNA
Post-Transcriptional Modification of mRNA
Institute of Human Anatomy
The Science Behind Creatine: Benefits, Safety, and Athletic Performance
This video explains what creatine is, how it works in the body, and whether it is safe and effective for increasing athletic performance. It covers topics such as how creatine is synthesized and stored in the body, how it helps provide...
Catalyst University
Pyruvate Dehydrogenase: Covalent Regulation
Pyruvate Dehydrogenase: Covalent Regulation
Catalyst University
Mechanisms of Oxygen Dissociation from Hemoglobin
In this video, we discuss 4 mechanisms by which oxygen's affinity for hemoglobin decreases, facilitating increased oxygen delivery to tissues. [1] Heat [2] Bohr Effect [3] Haldane Effect [4] 2,3-BPG
Journey to the Microcosmos
What Humans and Stentors Have in Common
This week, we're diving back into the world of Stentors to find out what humans and Stentors have in common!
Curated Video
How the Organs in the Digestive System Work Together
The video discusses how the organs in the digestive system work together to break down food molecules into smaller and soluble molecules that can be absorbed by the body. The example of muscle tissue is used to illustrate how a large...
Catalyst University
Anatomy and Physiology of the Small Intestine
In this video, we discuss: [1] the small intestine's anatomy [2] the transit of chyme from the stomach to the small intestine [3] the hormones released by the small intestine in response to chyme entry
Science360
Synthetic proteins: Mimicking the molecular machinery of life - Science Nation
Imagine synthetic antibiotics that could fight infections like MRSA, custom pharmaceuticals to treat advanced prostate cancer, and new enzymes that will turn cellulose into fuel. With support from the National Science Foundation (NSF),...
Catalyst University
Overview of the Posterior Pituitary [Neurohypophysis]
In this video, we explore the following: [1] the basic mechanism for hormone synthesis and release by the Posterior Pituitary [Neurohypophysis] [2] contrast this to the function of the anterior pituitary [3] basic functions of oxytocin...
Curated Video
Characteristics of Living Organisms
This video is a lecture on the characteristics of living organisms. The presenter lists and explains the eight main characteristics that all living organisms have in common: the need for nutrients, respiration, excretion, response to...
Curated Video
The Urinary System Anatomy and Physiology (An Introduction)
The Urinary System is a system that is partially responsible for maintaining homeostasis. Before we can understand the function of the Urinary system, let's set the foundation. In this video, I cover the structure and function of the...
Curated Video
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?
Curated Video
Life Substances - The Chemistry of life
There are a number of substances that are vital to all living organisms. In this lecture, I talk about substances like carbohydrates, lipids, proteins and nucleic acids, going into some detail about their structures and importance.
Catalyst University
Lipid Digestion & Absorption into the Lymphatic System
Lipid Digestion & Absorption into the Lymphatic System
JJ Medicine
mTOR Signaling Pathway: Regulation by the Lysosome
mTOR Signalling and Regulation by the Lysosome In this video, mTOR signaling is explained in a step-by-step powerpoint lesson. Regulation of mTOR signaling by the lysosome is also explained. Hey guys! In this video, I teach you about...