Protrusion, Retrusion, and Excursion Anatomy Body Movement Terms

Summary

In this anatomy lesson, Ben from registerednessrn.com explains three key movements of the mandible: protrusion, retrusion, and excursion. Protrusion is described as the forward movement, akin to puckering lips or sticking out the tongue. In contrast, retrusion involves moving the jaw backward. Excursion refers to lateral movements of the mandible, which can be lateral or medial, illustrated through a humorous reference to Ernest P. Worrell. Ben emphasizes the importance of these terms for healthcare professionals in assessing and documenting patient conditions, inviting viewers to take a related quiz and explore more anatomy content.

Takeaways

• 😀 Protrusion is the forward movement of a structure, often likened to a 'kissing movement.'
• 😀 Examples of protrusion include puckering lips, sticking out the tongue, and moving the mandible forward.
• 😀 Retrusion is the backward movement of a structure, opposite to protrusion.
• 😀 Common examples of retrusion include putting the tongue back in the mouth or moving the mandible backward.
• 😀 Some anatomists use 'protraction' and 'retraction' to describe similar movements, particularly with shoulder blades.
• 😀 Protraction involves anterolateral movement, while protrusion and retrusion focus on anterior and posterior movements.
• 😀 Excursion refers to side-to-side movement of the mandible.
• 😀 A cultural reference is made to the character Ernest, illustrating the concept of excursion through his reactions.
• 😀 Lateral excursion is when the mandible moves away from the midline, while medial excursion brings it closer.
• 😀 These movement terms are important for nurses and healthcare professionals in patient assessments and documentation.

Q & A

What is protrusion in anatomical terms?

Protrusion refers to the movement of a structure in an anterior or forward direction, such as puckering lips or moving the mandible forward.

How does retrusion differ from protrusion?

Retrusion is the opposite of protrusion, involving movement in a posterior or backward direction, like putting the tongue back in the mouth.

What are protraction and retraction, and how are they related to protrusion and retrusion?

Protraction and retraction describe movements, particularly of the shoulder blades, whereas protrusion and retrusion specifically refer to forward and backward movements of the mandible.

What does excursion refer to in anatomical movement?

Excursion refers to the side-to-side movement of the mandible, either to the left or right.

Can you provide an example of excursion from popular culture?

An example of excursion is seen in the character Ernest P. Worrell, who makes a side movement of his jaw when reacting to something gross.

What are the terms for lateral and medial excursion?

Lateral excursion refers to the lower jaw moving away from the midline of the body, while medial excursion refers to it moving closer to the midline.

In what context do healthcare professionals use protrusion, retrusion, and excursion?

Nurses and healthcare professionals use these terms when documenting or assessing patients, particularly during head-to-toe assessments.

What is an example of a clinical assessment involving protrusion?

During a head-to-toe assessment, a nurse might ask a patient to stick out their tongue to assess cranial nerve 12, which is an example of protrusion.

Why might some anatomists prefer specific terms like protraction and retraction for shoulder movements?

Some anatomists reserve protraction and retraction for shoulder movements due to their combined nature, differentiating them from the simpler anterior and posterior movements of protrusion and retrusion.

Where can one find additional resources related to this anatomical topic?

Additional resources, including quizzes and anatomy videos, are available on the registerednessrn.com website linked in the video description.