Curated Video
Chugging vs. Sipping: Is It Bad To 'Chug' Water?
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...
Curated Video
Muscle Contraction Made EASY: What REALLY Happens During Exercise
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...
Curated Video
042 How Calcium ion release results in Muscle Contraction
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
Kenhub
Plantaris muscle (3D)
Anatomy and functions of the plantaris muscle shown with 3D model animation.
Kenhub
Semitendinosus muscle (3D)
Anatomy and functions of the semitendinosus muscle shown with 3D model animation.
JJ Medicine
Eyelid Twitching (Eyelid Myokymia) | Triggers, Pathophysiology, Symptoms, Diagnosis, Treatment
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 the eyelid. There...
The Guardian
The people on a mission to live for ever
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...
Food Farmer Earth
What This Artisan Butcher Looks For In a Beef Carcass
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...
Curated Video
088 The Deep Extrinsic Shoulder Muscles
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...
Curated Video
089 What are the Six Intrinsic Shoulder Muscles?
In this video, Leslie Samuel shows us the six intrinsic shoulder muscles -- deltoid muscle, supraspinatus, infraspinatus, teres minor, teres major, and subscapularis. Enjoy!
Curated Video
094 Innervations Of The Extrinsic Back/Shoulder Muscles
In this video, Leslie Samuel talks about the accessory, thoracodorsal and dorsal scapular nerves, and how they innervate the extrinsic back/shoulder muscles, which include trapezius, Latissimus dorsi, Levator Scapulae, rhomboid minor and...
Curated Video
096 Innervations Of The Intrinsic Shoulder Muscles
In this video, Leslie Samuel talks about the intrinsic shoulder muscles, which are Supraspinatus, Infraspinatus, subscapularis, teres major and minor, and deltoideus. These are innervated by the suprascapular, upper and lower subscapular...
Curated Video
098 The Blood Supply To The Upper Extremities (Main Arteries)
In this video, Leslie talks about the main arteries that supply the Upper Extremities, which includes the subclavian, axillary, brachial, radial and ulnar arteries. The branches that come off those arteries will be discussed in later...
Curated Video
The Anterior Compartment Of The Arm
In this video, Leslie talks about the muscles of the anterior compartment, their innervation and function/action. These muscles include the Biceps Brachii, Coracobrachialis and Brachialis. The innervation is the musculocutaneous nerve...
Curated Video
The Posterior Compartment Of The Arm
In this video, I talk about the Triceps Brachii muscle, which is found in the posterior compartment of the arm, the radial nerve (innervation) and its function as a flexor of the forearm (elbow flexion).
Curated Video
The Boundaries of The Cubital Fossa
In this video, I talk about all the boundaries of the cubital fossa. This includes pronator teres, brachioradialis, the imaginary line between the two epicondyles, brachialis, the bicipetal aponeurosis, median cubital vein and the medial...
Curated Video
The Superficial Muscles Of The Anterior Compartment Of The Forearm
In this video, Leslie talks about the function and innervation of the anterior compartment of the forearm and then the 5 muscles in the superficial layer of that compartment. These muscles include Pronator teres, flexor carpi radialis,...
Curated Video
The Deep Muscles Of The Anterior Compartment Of The Forearm
Since we already covered the superficial muscles of the anterior forearm, it's time to get deep and talk about muscles like Flexor digitorum profundus, flexor pollicis longus and pronator quadratus. These also function in flexion of the...
Curated Video
A Review Of The Anterior Forearm
In this video, I go over the content I covered in the last 2 videos. I basically review the muscles, innervation and functions of the muscles of the anterior forearm. This is a good review video, but I would highly recommend for you to...
Curated Video
081 What are the Four Pectoral Muscles?
In this episode, Leslie Samuel talks about the four pectoral muscles -- pectoralis major (the main muscle most people refer to as the chest muscle), pectoralis minor, subclavius, and the serratus anterior. Furthermore, Leslie talks about...
Curated Video
085 Origin, Insertion, and Action of Serratus Anterior
In this video, Leslie Samuel talks about the fourth pectoral muscle. Learn why it's called serratus anterior and know more about its origin and insertion. Also, this muscle not only stabilizes the scapula but does a lot more. Watch to...
Curated Video
086 Pectoral Muscles Review
In this video, Leslie Samuel guides us in reviewing the four pectoral muscles with their origins, insertions and actions.
Curated Video
041 An Introduction to Skeletal Muscle Contraction
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!
Curated Video
Regulating Stroke Volume, Skeletal Muscle Pump and Frank-Starling Mechanism
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...