In this video, we explore more male reproductive anatomy [internal/external parts of the penis.<br/>

Overview of the muscles of the pharynx and related structures.

In this video, we discuss two movements of the scapula that correspond with shoulder flexion and extension: protraction and retraction, respectively. We will see the muscles of these movements, their origins, insertions, and actions.

In this video, we explore the functions of all 6 extrinsic eye muscles and the cranial nerves innervating and controlling each.

Myasthenia Gravis | Pathophysiology, Signs & Symptoms, Diagnosis, Treatment



Myasthenia Gravis is an autoimmune condition involving the production of autoantibodies against particular parts of the muscle and neuromuscular...

Anatomy and functions of the tibialis anterior muscle shown with 3D model animation.

Anatomy and functions of the obturator externus muscle shown with 3D model animation.

This tutorial focuses on muscles that comprise the medial compartment of the thigh.

Anatomy and functions of the sartorius muscle shown with 3D model animation.

This class focusses on vocabulary used during a tough day out in the English countryside. After learning new vocabulary it is best to try to use it again after a few minutes to help it move into your long term memory. That is why I...

Trichinosis (Pork Parasite) | Pathophysiology, Signs & Symptoms, Diagnosis, Treatment



Trichinosis (also known as trichinellosis), is an infection with a parasitic nematode of the genus Trichinella that can infect humans...

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...

It is better to sip water rather than chugging it down. That’s why certain water bottles have a narrower opening than required. Imagine a case where you have a sudden urge to drink water (obviously, you’re thirsty). You gulp down a glass...

In this video, I show how the release of Calcium ions from the sarcoplasmic reticulum results in skeletal muscle contraction at the level of the sarcomere. Enjoy

Anatomy and functions of the plantaris muscle shown with 3D model animation.

Anatomy and functions of the semitendinosus muscle shown with 3D model animation.

Eyelid Twitching (Eyelid Myokymia) | Triggers, Pathophysiology, Symptoms, Diagnosis, Treatment



Eyelid Twitching (which is also known as Eyelid Myokymia) is a condition involving involuntary twitching or contractions of...

What if you could cheat death and live for ever? To people in the radical life extension movement, immortality is a real possibility. Leah Green spends a long weekend at RAADfest, a meeting of scientists, activists and ordinary people...

Maybe you can call him the CSI detective for beef carcasses. After breaking down upwards of 10,000 whole animals, Tracy Smaciarz of Heritage Meats (in Rochester, Wa) can tell you a lot about an animal just by examining the carcass. As he...

In this episode, I start talking about skeletal muscle contraction, by giving a general introduction into how muscle contraction happens. I deal with how the action of actin and myosin in the sarcomere results in movement. Enjoy!

In this video, I talk about some of the things the body does to regulate stroke volume. I talk about the skeletal muscle pump and how that increases venous returns and about how the increased venous return results in a stronger...

Want to know a fun and systematic way to remember the origins, insertions and actions of levator scapulae, rhomboideus minor and rhomboideus major? Watch and learn as Leslie Samuel discusses how to remember the origins, insertions and...

In this video, Leslie Samuel shows us the six intrinsic shoulder muscles -- deltoid muscle, supraspinatus, infraspinatus, teres minor, teres major, and subscapularis. Enjoy!

In this video, Leslie tells more about the first of six intrinsic shoulder muscles, the deltoid muscle. Furthermore, he gives us a great way of remembering the muscle's origin, insertion, and action by using what we have learned in...