Facial and Neck Muscles: Functions, Origins & Insertions

Buccinator

depressor anguli oris

levator labi superioris

What Muscle is this?

Function?

Origin/Insertion?

Masseter

F-Open and Closes Mouth

O-Zygomatic Arch

I-Mandible

Muscle?

Function?

orbicularis oris

F-Compresses and Protrudes Lips

Muscle?

Function?

Orbicularis Oculi

F- Closes Eyelids

Risorius

Zygomaticus

Muscle?

Function?

Origin/Insertion

Sternocleidomastoid

F-Rotates and Flexes Neck (Moves our head)

O- Manubrium

I-Temporal Bone, Mastoid process

Mylohyoid

Thyrohyoid

Serratus Anterior

Muscle?
Function?

Pectoralis Major

F-Adducts and Medially Rotates Arm

Muscle and Function

Pectoralis Minor

F- Depresses and Protracts the Scapula

Muscle and Function

Internal Intercostals

F- Depresses Ribs and Supports

Muscle and Function

External Intercostals

F- Elevates Ribs and Supports

Muscle and Function

Diaphragm

F-Helps with inhale

Muscle and Function

Rectus Abdominis

F- Trunk Flexion

Muscle and function

Internal Abdominal Oblique

F-lateral rotation and flexion of truck

Muscle and Function

External Abdominal Oblique

F-lateral rotation and flexion of truck

(White towards bottom) Muscle, Function and Origin/Insertion

Aponeurosis

F-Connection (Connective tissue)

I-External Oblique

O- Pubic Crest

Muscle, Function, Origin and Insertion

Linea Alba

F- Connects Ex and Internal Obloquies

O- Xiphiod Process

I-Pubic Symphyses

Transverse Abdominus

Muscle and Function

Trapezius

F- Elevate, Depress, Retract Scapula

Muscle and Function

Latissimus Dorsi

F- adducts, medially rotates and extends arm

Erector Spinae

Muscle, Function, and Origin/Insertion

Deltoid

F- Abducts, Rotates and Extends Arm

O- Clavicle, Spine of Scapula

I- Deltoid Tuberosity of Humerus

Muscle and Function

Rhomboid Major

F- Retracts and Downward rotates Shoulder

Muscle and Function

Rhomboid Minor

F-Retracts and Downward rotates Shoulder

Muscle, Function, and Origin/Insertion

Teres Major

F- Adducts and Medially rotates Shoulder Joint

O-Back of Scapula

I-Lesser Tubercle of Humerus

Muscle, Function, and Origin/Insertion

Teres Minor

F- Laterally Rotates and Adducts Shoulder

O-Lateral Border of Scapula

I- Greater Tubercle of Humerus

Muscle, Function, and Origin/Insertion

Supraspinatus

F- Stabilizes Arm

O-Supraspinous Foss of Scapula

I- Greater Tubercle of Humerus

Muscle, Function, and Origin/Insertion

Infraspinatus

F- Stabilizes Arm

O-Infraspinous Foss of Scapula

I- Greater Tubercle of Humerus

Muscle, Function, and Origin/Insertion

Subscapularis

F-Medially Rotates Arm

O-Subscapular Fossa of Scapula

I-Lesser Tubercle of Humerus