Fascicle Arrangement Patterns

Circular (orbicularis oris)

Convergent (pectoralis major)

Parallel (sartorius)

Unipennate (extensor digitorum longus)

Multipennate (deltoid)

Fusiform (biceps brachii)

Bipennate (rectus femoris)

Fascicle Arrangement Patterns

Muscles of the Head and NeckEpicranius frontalis

Epicranius occipitalis

Temporalis

Corrugator supercilii

Orbicularis Occuli

Zygomaticus minor

Zygomaticus major

Buccinator

Orbicularis oris

Mentalis

Masseter

Sternocleidomastoid

Splenius capitis

Trapezius

Platysma

Muscles of the Head and Neck

Temporalis

Orbicularis oris

Buccinator

Masseter

Muscles of the Head and Neck

Lateral pterygoid

Medial pterygoid

Muscles of the Head and Neck

Thyrohyoid

Muscles of the Head and Neck

Digastric:- anterior belly- posterior belly Mylohyoid

Thyrohyoid

Sternothyroid

Sternohyoid

Sternocleidomastoid

Muscles of the Neck (anterior view)

Sternocleidomastoid Scalenes medius

Scalenes anterior

Scalenes posterior

Muscles of the Neck (posterior view)

Splenius capitis

Splenius cervicis

Muscles of the Thorax (posterior view)

Longissimus capitis

Iliocostalis cervicis

Longissimus cervicis

Semispinalis capitisSemispinalis cervicis

Semispinalis thoracis

Iliocostalis thoracisLongissimus thoracis Spinalis thoracis

Erector spinae

Iliocostalis lumborum Quadratus lumborum

External oblique

Muscles of the thorax

External intercostals

Internal intercostals

Muscles of the Thorax (inferior view)

Diaphragm

Quadratus lumborum

Psoas major

Muscles of the thorax and abdominal wall

Serratus anteriorPectoralis major

Transverse abdominis

Internal oblique

External obliqueRectus abdominis

Muscles of the abdominal wall

External obliques

Rectus abdominis

Internal obliques

Transverse abdominis

Muscles of the shoulder (anterior)

Sternocleidomastoid

Deltoid

Pectoralis major

Biceps brachii

Subscapularis *

Pectoralis minor

Serratus anterior

* Rotator cuff muscle

Muscles of the shoulder (posterior)

Trapezius Levator scapulae

* Rotator cuff muscles

Rhomboid minorRhomboid major

Supraspinatus *Infraspinatus *

Teres minor*

Teres major

Deltoid

Latissimus dorsi

Anterior shoulder and arm

Deltoid

Pectoralis major

Triceps brachii

Biceps brachii

Brachialis

Brachioradialis

Posterior shoulder and arm

Supraspinatus *

Infraspinatus *

Teres minor *Teres majorTriceps brachii:

Latissimus dorsi

- Lateral head- Long head

* Rotator cuff muscles

Muscles of the arm (anterior view)

Flexor carpi ulnaris

Palmaris longus

Flexor carpi radialisBrachioradialisPronator teres

Muscles of the arm (anterior view)

Pronator quadratus

Supinator

Muscles of the arm (posterior view)

Extensor carpi ulnarisExtensor digitorum

Extensor carpi radialis brevis

Extensor carpi radialis longusBrachioradialis

Muscles of the arm (posterior view)

Supinator

Muscles of the leg (anterior view)

Quadratus lumborumPsoas minor

Psoas majorIliacus

Iliopsoas

Tensor fasciae lataePectineusSartorius

Adductor longusGracilisAdductor magnusQuadraceps femoris:

- Rectus femoris- Vastus lateralis- Vastus medialis- Vastus intermedius: isdeep to the rectus femoris

Muscles of the leg (posterior view)

Gluteus medius

Gluteus maximus

Adductor magnusGracilis

Biceps femorisSemitendinosusSemimembranosus

Hamstrings

Adductor muscles of the leg (anterior view)

Adductor brevisAdductor longus

Pectineus - cut

Adductor magnus

Hip muscles (posterior view)

Gluteus medius (cut)

Gluteus minimus

Gluteus maximus (cut)

Muscles of the leg (anterior view)

Fibularis longus(Peroneus longus) Gastrocnemius

Tibialis anterior

Extensor digitorum longus

Muscles of the leg (lateral view)

Gastrocnemius

SoleusFibularis longus (Peroneus longus)

Tibialis anterior

Muscles of the leg (superficial posterior view)

Gastrocnemius:- Medial head- Lateral head

Tendon of the Gastrocnemius

Soleus

Triceps surae

Muscles of the leg (deep posterior view)

Popliteus

* The triceps surae have been removed to reveal the deep muscles.

Tibialis posterior

Flexor digitorum longus Fibularis longus

Fibularis brevis

(Peroneus longus)

(Peroneus brevis)