Human muscle system - Shoulder Muscles, Joints, Movements

Human muscle system - Shoulder Muscles, Joints, Movements: The shoulder is a complex ball-and-socket joint comprising the head of the humerus, the clavicle (collarbone), and the scapula. The shoulder’s main motions are flexion, extension, abduction, adduction, internal rotation, and external rotation. Shoulder flexion is movement of the shoulder in a forward motion. An example of shoulder flexion can be seen when reaching forward to grasp an object. That action is accomplished primarily by the combined actions of the deltoid muscle in the uppermost extent of the arm, the pectoralis major muscle in the chest, the coracobrachialis muscle on the inside of the upper arm, and the biceps brachii
Human muscle system, the muscles of the human body that work the skeletal system, that are under voluntary control, and that are concerned with movement, posture, and balance. Broadly considered, human muscle—like the muscles of all vertebrates—is often divided into striated muscle, smooth muscle, and cardiac muscle.

Aging changes in the bones - muscles - joints Information

Major Muscles of the Human Body

Why do crossbow users draw the string with their arms and not their legs? Leg muscles are far more powerful. - Quora

Shoulder Muscles, Anatomy, Functions & Movements - Lesson

Muscular System Anatomy and Physiology - Nurseslabs

What is the purpose of the wide handles on axes, even though they can be used with only one hand (with some exceptions)? - Quora

Your Muscles (for Kids)

Musculoskeletal system: Anatomy and functions

Can we build up muscles in the back of our hands so they would be strong enough to hold a one handed sword with ease? - Quora

What is the Rotator Cuff and What Does It Do? — Physical Therapy in Brooklyn

A Comprehensive Guide to the Major Muscles in the Shoulder Joint

Muscle Attachments and Actions

17,100+ Shoulder Anatomy Stock Photos, Pictures & Royalty-Free Images - iStock

Muscles of the Pectoral Girdle and Upper Limbs