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20 Muscles; Identification/Actions/Synergist/Antagonist

Muscle and Action
Masseter, Elevates mandible
What is the SYNERGIST of the Masseter?
Temporalis
What is the ANTAGONIST of the Masseter?
Digastric

Muscle and Action
Temporalis, Elevates mandible
What is the SYNERGIST of the Temporalis?
Masseter
What is the ANTAGONIST of the Temporalis?
Digastric

Muscle and Action
Digastric, Depresses mandible
What is the SYNERGIST of the Digastric?
Sternohyoid, Sternothyroid,Thyrohyoid
What is the ANTAGONIST of the Digastric?
Masseter, Temporalis

Muscle and Action
Sternohyoid, Depresses hyoid
What is the SYNERGIST of the Sternohyoid?
Sternothyroid
What is the ANTAGONIST of the Sternohyoid?
Stylohyoid

Muscle and Action
Sternothyroid, Depresses thyroid cartilage/larynx
What is the SYNERGIST of the Sternothyroid?
Sternothyroid
What is the ANTAGONIST of the Sternothyroid?
Stylohyoid

Muscle and Action
Thyrohyoid, Elevates larynx and depresses hyoid bone
What is the SYNERGIST of the Thyrohyoid?
Sternohyoid, Sternothyroid
What is the ANTAGONIST of the Thyrohyoid?
None

Muscle and Action
Sternocleidomastoid, Flexes and rotates the head
What is the SYNERGSIT of the Sternocleidomastoid?
None
What is the ANTAGONIST of the Sternocleidomastoid?
None

Muscle and Action
Clavo-Trapezius, Flexes neck laterally and elevates clavicle
What is the SYNERGSIT of the Clavo-Trapezius?
Rhomboideus, Levator scapula, Serratus anterior
What is the ANTAGONIST of the Clavo-Trapezius?
None

Muscle and Action
Acromio-trapezius, Adducts scapula
What is the SYNERGIST of the Acromio-Trapezius?
Rhomboideus, Levator scapula, Serratus anterior
What is the ANTAGONIST of the Acromio-Trapezius?
None

Muscle and Action
Spino-trapezius, Depresses scapula
What is the SYNERGIST of the Spino-Trapezius?
Rhomboideus, Levator scapulae
What is the ANTAGONIST of the Spino-Trapezius?
None

Muscle and Action
Pectoralis minor, Steadies and depresses scapula
What is the SYNERGIST of the Pectoralis minor?
Serratus anterior
What is the ANTAGONIST of the Pectoralis minor?
Trapezius

Muscle and Action
Levator scapulae, Elevates scapula
What is the SYNERGIST of the Levator Scapulae?
Clavo-trapezius, Rhomboideus
What is the ANTAGONIST of the Levator Scapulae?
Spino-trapezius

Muscle and Action
Serratus anterior, Anterior rotation of scapula
What is the SYNERGIST of the Serratus Anterior?
Pectoralis minor
What is the ANTAGONIST of the Serratus Anterior?
Rhomboideus, Trapezius

Muscle and Action
Rhomboideus, Adducts and elevates scapula
What is the SYNERGIST of the Rhomboideus?
Acromio-trapezius, Spino-trapezius, Levator scapulae, Latissimus dorsi
What is the ANTAGONIST of the Rhomboideus?
Serratus anterior

Muscle and Action
Pectoralis major, Flexes and adducts humerus
What is the SYNERGIST of the Pectoralis Major?
Clavo-deltoid, Subscapularis, Latissimus dorsi
What is the ANTAGONIST of the Pectoralis Major?
Spino-deltoid, Infraspinatus, Latissimus dorsi

Muscle and Action
Clavo-deltoid, Flexes and adducts humerus
What is the SYNERGIST of the Clavo-deltoid?
Supraspinatus, Infraspinatus, Teres major, Subscapularis
What is the ANTAGONIST of the Clavo-deltoid?
Latissimus dorsi

Muscle and Action
Acromio-deltoid, Abducts humerus
What is the SYNERGIST of the Acromio-deltoid?
Supraspinatus, Infraspinatus, Subscapularis
What is the ANTAGONIST of the Acromio-deltoid?
Latissimus dorsi

Muscle and Action
Spino-deltoid, Extends humerus
What is the SYNERGIST of the Spino-deltoid?
Infraspinatus, Teres major
What is the ANTAGONIST of the Spino-deltoid?
Pectoralis major, Latissimus dors

Muscle and Action
Infraspinatus, Lateral rotation of the humerus
What is the SYNERGIST of the Infraspinatus?
Spino-deltoid
What is the ANTAGONIST of the Infraspinatus?
Subscapularis

Muscle and Action
Supraspinatus, Abducts humerus
What is the SYNERGIST of the Supraspinatus?
Clavo-deltoid, Acromio-deltoid
What is the ANTAGONIST of the Supraspinatus?
Latissimus dorsi, Pectoralis major, Infraspinatus