24 Hour Child Abuse Hotline: 800.442.4918. 24 Hour Adult Protective Services Hotline: 800.491.7123. 24 Hour Fraud Hotline: 800.344.8477. Kinship & Youth Warmline: 800.303.0001.
The pectoralis minor is located underneath the pectoralis major. This thin triangle-shaped muscle runs up and down along the upper ribs. The major muscles in the upper torso include: 1  Trapezius: This muscle extends across the neck, shoulder, and back. 2  It allows for movement of the shoulders and shoulder blades.3  Rhomboid major: Attached to the shoulder blade, this muscle is one of many that aids shoulder movement.his thin triangle-shaped muscle runs up and down along the upper ribs. The major muscles in the upper torso include: 1  Trapezius: This muscle extends across the neck, shoulder, and back. 2  It allows for movement of the shoulders and shoulder blades.
Biceps: Long Head. The biceps brachii muscle splits into two tendons at the shoulder: the long head and the short head. The long head of the biceps muscle assists other muscles with shoulder flexion. It is located in the front of the upper arm and attaches to the glenoid fossa, or socket part of the shoulder joint.The long head of the biceps muscle is innervated by the musculocutaneous nerve.he coracobrachialis is a small muscle that also produces shoulder flexion. It originates from a protrusion on the shoulder blade called the coracoid process, and attaches to the humerus bone.