Anatomy revisited!

Youll find it helpful to have a basic knowledge of muscle anatomy before you head to the gym. Here are common and technical descriptions of key muscles.


Simple Description

Common Name: Biceps

Location on the Body: The biceps are the muscles in front of your arms.

Motion Performed: When you bend your arm to pick something up, you use your biceps.

Technical Description

Scientific Name: Biceps brachii

Location on the Body: The short or medial head attaches to the coracoid process of the scapula; the long or lateral head attaches to the glenoid. Both run to a tendon that travels between the radius and ulna attaching medially.

Motion Performed: Flexes elbow joint and supinates forearm. Although the bicep crosses the shoulder joint, it is a better shoulder-joint stabilizer than mover.


Simple Description

Common Name: Triceps

Location on the Body: The triceps are on the back of the upper arm.

Motion performed: The triceps straighten your elbows when you push yourself out of a chair.

Technical Description

Scientific Name: Triceps brachii

Location on the Body: The long head attaches to the infraglenoid tubercle of the scapula; the lateral head and medial head attach to the posterior humerus. All insert to a common tendon into the olecranon process of the ulna.

Motion Performed: Powerful forearm extensor. Longhead tendon may help stabilize shoulder joint and assist in arm adduction.