1. Muscle Names
Intro to Muscles

2. Muscle Names Direction of fascicles relative to midline
rectus = parallel Rectus abdominis
transverse = perpendicular Transvers
abdominis
oblique = at 45o angle External Oblique
Location (i.e. the bone or body part that a muscle covers
frontal bone Frontalis
tibia Tibialis Anterior

6. Muscle Names cont. Relative Size maximus = largest Gluteus maximus
longus = longest Palmaris longus
brevis = shortest Peroneus brevis
Number of Origins (Heads)
biceps = 2 origins Biceps brachii
triceps = 3 origins Triceps brachii

8. Muscle Names cont. Shape deltoid = triangle Deltoid
trapezius = trapezoid Trapezius
serratus = saw-toothed Serratus anterior
orbicularis = circular Orbicularis oris

11. Muscle Names cont. Location of Origin and/or Insertion
origin = sternum Sternocleidomastoid
insertion =
mastoid process
Action of Muscle
flexion Flexor carpi radialis
extension Extensor digitorum
adduction Adductor longus