Want to discover the muscles of the orbit and their fascinating functions? Allows us to introduce you! Want to continue learning? Click here: [ Ссылка ]

Oh, are you struggling with learning anatomy? We created the ★ Ultimate Anatomy Study Guide ★ to help you kick some gluteus maximus in any topic. Completely free. Download yours today: [ Ссылка ]

In this tutorial, we take a look at the muscles and related structures of the orbit. We will focus on that muscles that control the movement of the eye and its related structures.

The first muscle of the orbit we’ll be talking about is the levator palpebrae superioris. As the name suggests, this is the muscle responsible for the lifting of the upper eyelid upon contraction. This muscle is innervated by the oculomotor nerve, also known as cranial nerve number three. It originates from the lesser wing of the sphenoid bone.

The next muscle of the orbit we’ll be talking about in this video is the superior oblique muscle, which is innervated by the trochlear nerve - or cranial nerve number four. It has its origin from the body of the sphenoid bone, and passes through the trochlear, inserting in the posterolateral part of the sclera. The contraction of this muscle abducts, depresses, and medially rotates the eye.

To master this topic, click on the link and carry on watching the full video (available to Premium members): [ Ссылка ]

Want to test your knowledge on the muscles of the orbit? Take this quiz: [ Ссылка ]

Read more on the muscles of the orbit in our free article. In it you’ll find lots of detailed images, and even learn how to do a clinical eye exam! [ Ссылка ]

For more engaging video tutorials, interactive quizzes, articles and an atlas of Human anatomy and histology, go to: [ Ссылка ]

свернуть