Axial Muscles Study Set: Biology Terms & Definitions

Temporalis

Masseter

Zygomatic arch

origin of masseter

Lateral surface of mandibular ramus and angle

insertion of masseter

Orbicularis Oculi

Levator Palpabrae Superioris

Zygomaticus Major

Zygomaticus Minor

Orbicularis Oris

Platysma

Sternocleidomastoid

Manubrium of sternum, medial one third of clavicle

Origin of sternocleidomastoid

Mastoid process of temporal bone

insertion of sternocleidomastoid

Scalenes

Digastric

Digastric fossa of mandible

origin of anterior belly of digastric

Mastoid process of temporal bone

origin of posterior belly of digastric

Hyoid bone via fascial sling

insertion of digastric

Stylohyoid

Styloid process of temporal bone

Origin of stylohyoid

Hyoid bone

Insertion of stylohyoid

Mylohyoid

Sternohyoid

Manubrium end of sternum, medial end of clavicle

origin of sternohyoid

Hyoid bone

insertion of sternohyoid

Sternothyroid

Omohyoid

Thyrohyoid

External Intercostals

Internal Intercostals

Diaphragm

Rectus Abdominis

Pubic symphysis and superior margin of pubis

origin of rectus abdominus

Xiphoid process, costal cartilages 5-7

insertion of rectus abdominis

External Abdominal Oblique

Internal Abdominal Oblique

Transverse Abdominis

Linea Alba

Semispinalis

Illiocostalis

Longissimus

Spinalis

Rhomboideus Major

Levator Scapulae

Trapezius

External occipital protuberance, medial one third of superior nuchal line, nuchal ligament, spinous processes of vertebrae T1-T12

Origin of trapezius

Acromion and spine of scapula, lateral one third of clavicle

Insertion of trapezius

Serratus Anterior

All or nearby all ribs

Origin of serratus anterior

Medial border of scapula

Insertion of serratus anterior

Pectoralis Minor

Ribs 3-5 and overlying fascia

origin of pectoralis minor

Coracoid process of scapula

insertion of pectoralis minor

Pectoralis Major

Medial half of clavicle, lateral margin of sternum, costal cartilages 1-7, aponeurosis of external oblique

Origin of pectoralis major

Intertubercular sulcus of humerus

Insertion of pectoralis major

Latissimus Dorsi