Using One of the Deadliest Neurotoxins for Beauty... and Medicine?

Botox is a prescription drug best known for its cosmetic use, but its active ingredient is one of the deadliest biological substances known to mankind.

In this video, Justin from the Institute of Human Anatomy discusses the mysteries surrounding muscle knots.

This video tutorial teaches the corticospinal tract and discusses upper and lower motor neurons: 0:00. Introduction 0:19. Corticospinal tract (overview) 0:58. Overview of cerebrum, brainstem, and spinal cord sections 1:20. Upper motor...

Part 1 of 2 of excitation-contraction coupling | In this video, we discuss excitation-contraction coupling from events on the motor neuron axon all the way through opening of calcium channels in the sarcoplasmic reticulum (SR).

Guillain-Barré Syndrome (GBS) | Causes, Pathophysiology, Signs & Symptoms, Diagnosis, Treatment



Guillain-Barré Syndrome is a auto-immune demyelinating condition involving ascending weakness and paralysis. Guillain Barre...

In this video, we discuss all steps of excitation-contraction coupling in skeletal muscle from events on the motor neuron axon all the way through cross-bridge cycling between actin and myosin.

In this video, we will discuss the events of Excitation-Contraction Coupling from the motor neuron action potential to release of Ca2+ from the sarcoplasmic reticulum (SR). **Part 2 Coming Soon

Neuron Biosignaling

Muscle Physiology 1: Converting a Nerve Impulse into a Muscle Action Potential

This video tutorial discusses the Nicotinic cholinergic receptors: 0:00. Intro 0:17. What are cholinergic receptors? 0:31. What are nicotinic receptors? 1:47. What are the 2 types of nicotinic receptors? 2:07. Nm. Nicotinic muscle...

In this video, we discuss the mechanism of Myasthenia Gravis and how the condition presents.

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...

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...

We've learned about the types of muscle, including skeletal muscle, and we know then when these muscles contract, we are able to move our bodies around. But how exactly does this happen on the molecular level? There is an astonishing...

Neuromuscular junctions between nerve cells (motor neurons) and a muscle. Nerve signals (green) are transmitted from the nerves to the muscle tissue by the neurotransmitter chemical acetylcholine. This signal causes the muscle to contract