Learn the basics about how to use dot and cross diagrams to represent covalent bonds. Dot and cross diagrams are simply a straightforward way of drawing the electrons in the orbitals of atoms and compounds. Most of the time, we use dots...

Glycolysis 2

Lipid Biosynthesis Phospholipid Synthesis 2 Cholines, Serines, & Ethanolamines

Amino Acid Catabolism to Alpha-Ketoglutarate

Carbonic Anhydrase

Carbohydrate Structure Aldopentoses and Ketopentoses

Adenylate Cyclase Mechanism Inorganic Pyrophosphatase Mechanism

In this video, we will discuss the following:

[1] the synthesis of thyroid hormones, T3 and T4, from iodide and thyroglobulin in follicular c
ells.
[2] the activation of T4 to T3 which occurs at the target c
ell level.
[3]...

Histidine Catabolism to Glutamate

In this video, we explore the deep gluteal muscles that facilitate hip external rotation including origins, insertions, actions, and innervation.

In this video, I explain the basis of spinal cord assessment using the ASIA scoring system and work through and example of how to assess spinal cord pathology using the ASIA score sheet [neurological levels of injury, zone of partial...

Allostery High EC vs Low EC

In this video, we discuss the degradation pathway of red blood cells [Erythrocytes] and trace the fates of the 1) globins, 2) heme, and 3) iron.

In this video, we discuss the anatomy of the human scapula using images and a 3D model.

In this segment, we continue our discussion on Western diseases and explore how sugar, chronically elevated insulin, and inflammation lead to a diseased cardiovascular system.

Glycolysis (Part 4 4) Payoff Phase Review

Glycolysis Allostery

This EKG video explains how to use the 1500-method and the 300-method to determine HR from a regular rhythm.

Cardiac Muscle Physiology T Tubules and Calcium-induced Calcium Release

In this video, we discuss the origin of the sciatic nerve from nerve roots L4-S3, its structure and branches, and basic disorders of the sciatic nerve.

NOTE: The "condition" sciatica is very general but is due to compressed roots...

Glycogen Biosynthesis

In this video, we explore the basic processes of positive selection and negative selection, which select competent lymphocytes that don't attack our own self-cells.

This video is a follow-up to the video regarding functions of LH and FSH (the gonadotropins). Here, we look at more detail regarding the synthesis of estradiol and the roles of the Theca Cells and Granulosa Cells.

Cholesterol Structure (Part 2 2)