Construction of Knowledge Through Doing: A Brachial Plexus Model from Pipe Cleaners.

Area of Science:

• Anatomy Education
• Medical Pedagogy

Background:

• The brachial plexus is a complex anatomical structure that medical students often find challenging to learn.
• Traditional didactic methods may not fully address the cognitive demands of learning intricate anatomical networks.

Purpose of the Study:

• To evaluate the effectiveness of a low-cost, pipe cleaner model of the brachial plexus in enhancing medical students' understanding and retention.
• To compare the impact of introducing the model activity early versus late in the gross anatomy curriculum.

Main Methods:

• Medical students participated in a hands-on activity to construct a brachial plexus model from pipe cleaners after a didactic lecture.
• The activity's timing within the curriculum was varied across two academic years (late vs. early introduction).
• Student perceptions, perceived understanding, and model utilization for studying were assessed via surveys.

Main Results:

• Students reported positive engagement with the pipe cleaner model activity, finding it enjoyable and beneficial for understanding.
• The model was perceived as a valuable study tool, particularly when introduced early in the curriculum, leading to sustained use throughout the semester.
• Early introduction of the model correlated with improved perceived understanding and utilization for long-term study.

Conclusions:

• Constructing a pipe cleaner brachial plexus model is an effective, low-cost method to reduce cognitive load and improve anatomical understanding.
• Integrating this hands-on activity early in the gross anatomy course enhances its utility as a study aid over an extended period.
• This pedagogical approach supports active learning and facilitates the development of robust mental schema for complex anatomical structures.