Catalyst University
Anatomy and Physiology of the Large Intestine [Colon]
In this video, we investigate the relevant anatomy and functions of the large intestine or colon.
Catalyst University
The Mechanism of Benzodiazepines | The GABA Receptor and Allosteric Modulation
In this video, we discuss the mechanism of benzodiazepines (e.g., xanax, ativan). In doing so, we also cover the functions of the GABAa receptor and the effects of benzodiazepines, barbiturates, and alcohols on it.
Catalyst University
The Loop Of Henle [Part 2] | Urea Recycling
In this video, we will discuss how urea recycling between the collecting ducts and the Loop of Henle augments water reabsorption in the Loop's descending limb.
Catalyst University
Low Back Pain Classification System EXPLAINED
In this video, we introduce the Low Back Pain (LBP) Classification System, and briefly discuss clinical presentations and some (but not all) treatments for each category.
Catalyst University
Pathway For Sperm and Egg Cells to Fertilization
In this video, we will examine the precise site of fertilization and then follow the physical path of the secondary oocyte (egg) and sperm cell (spermatozoa) to fertilization.
Catalyst University
Microbiology | Nitrate Broth [Nitrate Reduction Test]
In this video, we will discuss the 1) results & 2) theory underlying the nitrate reduction test (nitrate broth). Results are first, and theory (somewhat complicated) begins at 7:55.
Catalyst University
Wright's (HyperABDuction) Test | Rationale & Interpretation
In this video, I explain and demonstrate Wright’s (HyperABDuction) test, one special test used in the diagnosis of Thoracic Outlet Syndrome (TOS). More specifically, we cover the rationale, interpretation of results, and psychometric...
Catalyst University
Parasympathetic Nervous System (Cranial Part) | Pathways & Components
In this video, we will discuss in detail the major components and pathways of the parasympathetic nervous system (cranial component).
Catalyst University
TherEx | Upper Trapezius Stretch
In this video, I demonstrate and explain the upper trap stretch.
Catalyst University
Phonophoresis EXPLAINED | Theory, Use, & Parameters
In this video, we explore the theory, use, and parameters with phonophoresis, an application of therapeutic ultrasound for drug delivery.
Catalyst University
How Does Dairy Cause Inflammation? EXPLAINED
In this video, we explore how casein proteins in dairy products induce an inflammatory response.
Catalyst University
Biotechniques | Basics of Making His-Tags & Nickel Affinity Chromatography
As always, the steps of putting a gene insert into vector/plasmid AND nickel affinity chromatography depend on your specific lab and protocol. Here, we look at the general theory of engineering a poly-His tagged protein and Ni affinity...
Catalyst University
Action Potential Physiology (FULL VIDEO)
Action Potential Physiology (FULL VIDEO)
Catalyst University
Enzyme Thermodynamics (Binding Energy and Entropy)
Enzyme Thermodynamics (Binding Energy and Entropy)
Catalyst University
Combining Cations & Anions to Name Ionic Compounds
Here, I show you how to write the formula for an ionic compound given the cation and anion. [5 examples]
Catalyst University
THEORY | Shoulder Instability Tests
In this video, we discuss the theory behind shoulder instability tests and their test item clusters.
Catalyst University
Prions | Mechanisms of Huntington's Disease & the Huntingtin Prion
Huntington's disease is a neurodegenerative prion disease in which affected individuals suffer destruction of neurons in the basal nuclei (e.g., GABAergic neurons) and rapid, involuntary movements as a result. In this video, I will...
Catalyst University
Hawkins-Kennedy Test | Rationale & Interpretation
In this video, we explore the Hawkins-Kennedy test, a special test used in the diagnosis of subacromial impingement syndrome. We also touch on its psychometrics including sensitivity and specificity.
Catalyst University
Convex-Concave Rules for Mobilizing the SC Joint
In this video, we explore the reasoning behind sternoclavicular joint (clavicle) mobilizations using convex-concave rules.
Catalyst University
Biomechanics | Elbow/Biceps Torque Problem #2
Here, I work a basic torque problem at the elbow joint in biomechanics. The following considerations are used. [1] elbow at 90 degrees [2] weight of dumbbell in hand [3] forearm weight is considered
Catalyst University
Basics of the Obturator Nerve - Origins & Branches
In this video, we explore the origins of the obturator nerve from the lumbar plexus and it important branches to the adductor muscles in the thigh.
Catalyst University
Anterior Forearm Muscles - Deep Layer + Review of Superficial Layer
In this video, we explore the deep muscles of the anterior forearm (antebrachium). We hit the structures, origins, insertions, innervations, and actions.
Catalyst University
Therapeutic Ultrasound EXPLAINED | Use, Parameters, & Real Example
In this video, we explore the theory, use, and parameters with therapeutic ultrasound along with a real-world example.
Catalyst University
Vitamins and Minerals | Vitamin C Biosynthesis & the GULO Pseudogene
Here, we explore the biosynthetic pathway for vitamin C (ascorbic acid) from glucuronic acid. Also, we explore inability of some organisms (e.g., humans) to perform this biosynthesis due to the GULO pseudogene.