by Brent Brookbush DPT, PT, MS, PES, CES, CSCS, ACSM H/FS
Study Guide - Quick Reference - Deltoids
Note: If you intend to do the activities below do not open the "Study Guide" - all the answers are already filled in. The study guide is just a quick reference tool, similar to flash cards - great for preparing for an exam.
In this lecture we will be discussing Deltoids:
The deltoid is commonly divided into 3 distinct parts based on function, fiber arrangement, neural innervation, and distinct separation at the proximal attachment. The 3 divisions are:
These muscles originate on the distal third of the clavicle, acromion process and spine of the scapula, and insert into the deltoid tuberosity of the humerus. These muscles cross the shoulder (glenohumeral joint) and assist in motion of the arm. They have no attachment to