The document outlines the muscular system, detailing the types of ordinary and special body movements, including terms such as flexion, extension, and supination. It also categorizes muscles based on their function (prime mover, antagonist, synergist, fixator), naming conventions related to location, shape, size, direction, action, and number of origins. Examples of specific muscles and their origin and insertion points further illustrate these concepts.

1. MUSCULAR SYSTEM:
Skeletal Muscle
Types of Ordinary Body Movements
 Flexion
 Extension
 Rotation
 Abduction
 Circumduction
Types of Special Body Movements
 Dorsifelxion
 Plantar flexion
 Inversion
 Eversion
 Supination
 Pronation
 Opposition
Types of Muscles
 Prime mover – muscle with the major responsibility for a certain movement
 Antagonist – muscle that opposes or reverses a prime mover
 Synergist – muscle that aids a prime mover in a movement and helps prevent rotation
 Fixator – stabilizes the origin of a prime mover
Naming of Skeletal Muscles
 Location of the muscle
 FRONTALIS – Frontal Bone
 LATERALIS – Lateral Or On The Side
 TIBIALIS ANTERIOR – Front Of Tibia
 FIBULARIS LONGUS – Near Fibula
 SUPRA – Above
 INFRA – Below
 SUB - Underneath
 Shape of the muscle
 DELTOID – Triangle
 LATISSIMUS – Wide
 TERES - Round
 TRAPEZIUS – Trapezoid
 SERRATUS – Saw-Toothe
 ORBICULARIS – Circular

2.  Size of the muscle
 MAXIMUS – Largest
 MINIMIS – Smallest
 VASTUS – Huge
 LONGUS – Longest
 BREVIS – Short
 MAJOR – Large
 MINOR – Small
 Direction/Orientation of the muscle fibers/cells
 RECTUS – straight, parallel to the muscle’s long axis
Ex: Rectus Abdominis
 TRANSVERSUS– transverse, at right angles to the muscle’s long axis
 OBLIQUE – diagonal
 Action of the muscle
 FLEXOR– Flexes
 ABDUCTOR – Abducts
 EXTENSOR – Extends
 LEVATOR – Lifts
 Number of Origins
 BICEPS – Two Origins
 TRICEPS – Three Origins
 QUADRICEPS – Four Origins
 Origin and Insertion:
 Ex: STERNO CLEIDO MASTOID
Origin: Sternum Passes: Clavicle Insertion: Mastoid (Temporal Bone)