Interactive Biology

In this video, the motion of bringing arm out to the side is shoulder abduction. Shoulder abduction is demonstrated starting from the arm at the side with the palm facing forward which is the anatomical position for the upper extremity, and ending with the arm up above the head in full shoulder abduction as seen from a front or anterior view.

http://www.interactive-biology.com - 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 wrist and pronation of the hand and are mostly innervated by the anterior interosseus nerve, except for Flexor digitorum profundus, which is innervated not only by that nerve, but also the ulnar nerve.

http://www.interactive-biology.com - 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, palmaris longus, flexor carpi ulnaris and flexor digitorum superficialis. Enjoy!

http://www.interactive-biology.com/104 - In this video, I talk about the 3 structures that are found within the cubital fossa: 1. The Tendon of Biceps Brachii, 2. The Brachial Artery (used for determining blood pressure) and 3. The Median Nerve.

http://www.interactive-biology.com - 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 and lateral cutaneous nerves of the forearm 00:00 Intro 00:48 Location of the Cubital Fossa 02:04 The boundaries. 02:19 Lateral epicondyle 02:31 Medial epicondyle 02:48 Imaginary line between two epicondyles 02:59 Brachioradialis 03:09 Pronator teres 03:41 Brachialis 04:08 Bicipetal aponeurosis 04:50 Median cubital vein 05:02 medial and lateral cutaneous nerves of the forearm 05:31 Recap

http://www.interactive-biology.com/102 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).

http://www.interactive-biology.com - 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 and they function in flexion of the arm and forearm. Enjoy!

http://www.interactive-biology.com - When looking at the bones of the arm and forearm, the first bone we need to look at is the distal humerus. In this video, Leslie talks about those structures. These structures include the capitulum and trochlea, the medial and lateral epicondyle, the medial and lateral supracondylar ridges, and the olecranon, radial and coronoid fossae. Enjoy!

http://www.interactive-biology.com - In this video, Leslie talks about the 6 branches of the axillary artery, which include the Superior Thoracic artery, Thoracoacromial artery, Lateral Thoracic artery, Subscapular artery, Posterior Circumflex Humeral artery and the Anterior Circumflex humeral artery. He also gives some pneumonic devices for memorizing them in an easy way.

http://www.interactive-biology.com - 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 videos.

http://www.interactive-biology.com - In this video, my AWESOME Students sing the Cranial Nerve Song that they made up to remember whether a cranial nerve is Sensory, Motor, or Both!

http://www.interactive-biology.com - The muscles of the arm are the Biceps brachii, corachobrachialis, brachialis, and triceps brachii muscles. What are the nerves that innervate them? That's what Leslie Samuel talks about in this video. Turns out - there are only two - the musculocutaneous and Radial nerves. Which muscles do they innervate? Watch this video and find out.

http://www.interactive-biology.com - 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 and axillary nerves. Learn, and enjoy!

http://www.interactive-biology.com - In this video, Leslie Samuel talks about the Lateral and Medial Pectoral nerves, and the long thoracic nerve, which innervate Pectoralis Major and minor, and Serratus anterior - all of the pectoral muscles. Enjoy

http://www.interactive-biology.com - 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 rhomboid major. Enjoy!

http://www.interactive-biology.com - In this video, Leslie Samuel talks about the Suprascapular notch, Quadrangular Space, Triangular Space, and Triangular Interval. All of which serve as gateways for specific nerves and arteries to get to the Posterior Scapular Regions. Structures like the axillary nerve, posterior humeral circumflex artery, scapula circumflex artery, Radial nerve and Deep Brachial Artery. Important Stuff. Enjoy!

http://www.interactive-biology.com/ -- Learning about the anatomy of the brachial plexus can be tough. But, it can be quite easy if you have the right pneumonics to guide you. Watch this video as Leslie Samuel makes it fun and easier to go through each of the roots, trunks, divisions, cords and branches of the brachial plexus. Have fun!

http://www.interactive-biology.com/ - In this video, Leslie Samuel discusses three more of the six intrinsic shoulder muscles -- infraspinatus, supraspinatus, and teres minor. They've been grouped this way to help you easily remember their insertions. How? Watch and learn more. Have fun!

http://www.interactive-biology.com/ - 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 previous episodes. Enjoy!

http://www.interactive-biology.com/ - In this video, Leslie Samuel shows us the six intrinsic shoulder muscles -- deltoid muscle, supraspinatus, infraspinatus, teres minor, teres major, and subscapularis. Enjoy!

http://www.interactive-biology.com/ -- 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 actions of these three deep extrinsic shoulder muscles more effectively. Enjoy!

http://www.interactive-biology.com/ - In this episode, Leslie Samuel teaches us about the complex origins, insertions, and actions of the trapezius muscle and latissimus dorsi. Learn how to identify the different actions that each of these muscle does. This and much more!

http://www.interactive-biology.com/ - In this video, Leslie Samuel guides us in reviewing the four pectoral muscles with their origins, insertions and actions. If you want to learn more about each of them, you can go to the individual episodes here: 081 What are the Four Pectoral Muscles? - http://www.youtube.com/watch?v=sYUnay5JsqQ 082 The Origin, Insertion, and Action of Pectoralis Major - http://www.youtube.com/watch?v=p_aE-VjIhZA 083 The Origin, Insertion, and Action of Pectoralis Minor - http://www.youtube.com/watch?v=rVBgTkB4b8w 084 The Origin, Insertion, and Action of Subclavius http://www.youtube.com/watch?v=rsgGAuz3V58 085 Origin, Insertion, and Action of Serratus Anterior - http://www.youtube.com/watch?v=nYpLjeLmfOw Hope you'll have fun!

http://www.interactive-biology.com/ - In this video, Leslie Samuel shows the origin, insertion, and action of the smallest pectoral muscle, the subclavius muscle. Also, learn how the name of this muscle can help to remember about its location. This and much more!

www.interactive-biology.com - 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 discover and learn. Have fun!