Human Anatomy: Origins/Insertions/Actions

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Last updated 3:13 PM on 9/18/26
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45 Terms

1
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origin of masseter

zygomatic arch

<p>zygomatic arch</p>
2
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insertion of masseter

lateral ramus & angle of mandible

<p>lateral ramus & angle of mandible</p>
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action of masseter

elevates mandible

<p>elevates mandible</p>
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origin of sternocleidomastoid

manubrium, sternal end of clavicle

<p>manubrium, sternal end of clavicle</p>
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insertion of sternocleidomastoid

mastoid process of temporal bone

<p>mastoid process of temporal bone</p>
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action of sternocleidomastoid

flex and lateral rotation of neck

<p>flex and lateral rotation of neck</p>
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origin of pectoralis major

ribs 2-6, body of sternum, sternal end of clavicle

<p>ribs 2-6, body of sternum, sternal end of clavicle</p>
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insertion of pectorals major

intertubercular groove of humerus

<p>intertubercular groove of humerus</p>
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action of pectoralis major

adducts, flexes, and medially rotates arm

<p>adducts, flexes, and medially rotates arm</p>
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origin of deltoid

acromial end of clavicle, acromion & spine of scapula

<p>acromial end of clavicle, acromion & spine of scapula</p>
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insertion of deltoid

deltoid tuberosity of humerus

<p>deltoid tuberosity of humerus</p>
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action of deltoid

extend, abducts, rotate shoulder

<p>extend, abducts, rotate shoulder</p>
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origin of coracobrachialis

coracoid process of scapula

<p>coracoid process of scapula</p>
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insertion of coracobrachialis

midshaft of humerus

<p>midshaft of humerus</p>
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action of coracobrachialis

adducts/flexes arm

<p>adducts/flexes arm</p>
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origin of brachialis

anterior shaft of humerus

<p>anterior shaft of humerus</p>
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insertion of brachialis

coronoid process of ulna

<p>coronoid process of ulna</p>
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action of brachialis

flexes elbow

<p>flexes elbow</p>
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origin of brachioradialis

lateral supracondylar ridge of humerus

<p>lateral supracondylar ridge of humerus</p>
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insertion of brachioradialis

styloid process of radius

<p>styloid process of radius</p>
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action of brachioradialis

flexes elbow

<p>flexes elbow</p>
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origin of extensor digitorum

lateral epicondyle of humerus

<p>lateral epicondyle of humerus</p>
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insertion of extensor digitorum

phalanges 2-5

<p>phalanges 2-5</p>
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actions of extensor digitorum

extend phalanges 2-5 & wrist

<p>extend phalanges 2-5 & wrist</p>
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origin of pronator teres

medial epicondyle of humerus & coronoid process of ulna

<p>medial epicondyle of humerus & coronoid process of ulna</p>
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insertion of pronator teres

mid-lateral shaft of radius

<p>mid-lateral shaft of radius</p>
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action of pronator teres

pronates forearm

<p>pronates forearm</p>
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origin of gluteus maximus

ilium, sacrum, coccyx

<p>ilium, sacrum, coccyx</p>
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insertion of gluteus maximus

gluteal tuberosity of femur

<p>gluteal tuberosity of femur</p>
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action of gluteus maximus

extends and laterally rotates thigh

<p>extends and laterally rotates thigh</p>
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origin of rectus femoris

anterior inferior iliac spine, superior margin of acetabulum

<p>anterior inferior iliac spine, superior margin of acetabulum</p>
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insertion of rectus femoris

tibial tuberosity

<p>tibial tuberosity</p>
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action of rectus femoris

flexes hip, extends knee

<p>flexes hip, extends knee</p>
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origin of sartorius

anterior superior iliac spine

<p>anterior superior iliac spine</p>
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insertion of sartorius

tibial tuberosity

<p>tibial tuberosity</p>
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action of sartorius

flexes and laterally rotates hip, flexes knee

<p>flexes and laterally rotates hip, flexes knee</p>
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origin of semitendinosus

ischial tuberosity

<p>ischial tuberosity</p>
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insertion of semitendinosus

medial condyle of tibia

<p>medial condyle of tibia</p>
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action of semitendinosus

flex and extend knee, medially rotate hip

<p>flex and extend knee, medially rotate hip</p>
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origin of gastrocnemius

medial and lateral condyles of femur

<p>medial and lateral condyles of femur</p>
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insertion of gastrocnemius

calcaneus

<p>calcaneus</p>
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action of gastrocnemius

planta flexion, extension of foot

<p>planta flexion, extension of foot</p>
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origin of tibialis anterior

lateral tibia

<p>lateral tibia</p>
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insertion of tibialis anterior

1st metatarsal, cuneiform bone

<p>1st metatarsal, cuneiform bone</p>
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action of tibialis anterior

dorsiflexes foot

<p>dorsiflexes foot</p>