Catalyst University
Physiological Mechanism of Popping ("Cracking") Joints
Have you ever wondered why or how your joints pop? In this video, I explain the physiological mechanism underlying the cracking or popping of joints such as those in the fingers or neck. The exact reasons may surprise you.
Catalyst University
The EVIDENCE for Sugar-Related Health Defects | Is Fat that Bad?
This video uses systematic reviews and meta-analyses to provide an evidence-based approach [1] criticizing the United States’ view of sugar, fat, and cholesterol; and [2] discussing how sugar has always been the culprit in obesity and...
Catalyst University
Cocaine | Biosynthesis, Mechanism of Action, & Metabolism
In this video, we explore the biosynthesis, mechanism of action, and metabolism of the plant alkaloid, cocaine.
Catalyst University
Sympathetic Nervous System | Overview of Specific Pathways
In this video, we discuss the pathways of the sympathetic nervous system in detail.
Catalyst University
Nucleotide Metabolism | Degradation of Uric Acid
Nucleotide Metabolism | Degradation of Uric Acid
Catalyst University
Major Ligaments of the Cervical Spine
In this video, we explore the anatomy of the major ligaments of the cervical spine.
Catalyst University
Hip Flexors EXPLAINED Iliopsoas & Other Hip Flexors
In this video, we explore the muscles that facilitate hip flexion and the origins, insertions, actions, and innervation of the iliopsoas.
Catalyst University
Major Branches of the Internal Pudendal Artery
In this video, we will be discussing the branches of the internal pudendal artery for both males and females, both of which exhibit large sexual dimorphism. NOTE: the internal pudendal artery has extensive genetic variability in the...
Catalyst University
Biosignaling - Janus Kinases The JAK-STAT Pathway
Biosignaling - Janus Kinases The JAK-STAT Pathway
Catalyst University
Glutamate Dehydrogenase Catabolism of Glutamate
Glutamate Dehydrogenase Catabolism of Glutamate
Catalyst University
Hypertrophic Cardiomyopathy How the Heart Enlarges Pathologically
In this video, we discuss hypertrophic cardiomyopathy, the mechanism by which a heart enlarges in response to chronically elevated afterload and high blood pressure.
Catalyst University
Knee Extracapsular Ligaments Patellar Ligament, MCL, & LCL
In this video, we discuss anatomy of the major extracapsular knee ligaments (the patellar ligament, MCL, and LCL) and associated structures.
Catalyst University
EKG Patterns Premature Atrial & Ventricular Contractions [PACs & PVCs]
In this video, we discuss two more EKG patterns, premature atrial contractions and premature ventricular contractions [PACs & PVCs]. We also discuss the subtypes of PVCs.
Catalyst University
Cardiac Pharmacology [Part 2] Anti-thrombotics & Anti-coagulants
Cardiac Pharmacology [Part 2] Anti-thrombotics & Anti-coagulants
Catalyst University
Sternoclavicular (SC) & Acromioclavicular (AC) Joints REVIEW
In this video, we do a brief review of the anatomy of the sternoclavicular (SC) & acromioclavicular (AC) joints.
Catalyst University
Protein Purification Table Calculations: Formulas, No Numbers
Protein Purification Table Calculations: Formulas, No Numbers
Catalyst University
Vitamin B5 [Pantothenic Acid] | Salvage, CoA Biosynthesis, & Other Facts
In this video, we discuss the salvage pathway for vitamin B5 (pantothenic acid), its biochemical reconstruction after absorption, and some clinical implications for vitamin B5 deficiency.
Catalyst University
Disk Diffusion Test using Bacitracin or Optochin
In this video, I explain how to determine resistance (R) or susceptibility (S) in bacteria using the disk diffusion method (with bacitracin and optochin).
Catalyst University
Steroidogenesis | The Biosynthesis of Steroids from Cholesterol
In this video, we examine the conversion of cholesterol to all of the major steroid classes: progestogens, mineralocorticoids, glucocorticoids, androgens, and estrogens.
Catalyst University
Lachman's Test | Rationale & Interpretation
In this video, I explain and demonstrate Lachman's test, a special test used in the assessment of ACL injuries. More specifically, we will cover the procedure, interpretation of results, and its psychometric properties.