BIOL 3401 Muscular System

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Practical 2 prep

BIOL 3401

COLLEGE

Last updated 10:41 PM on 9/27/26
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45 Terms

1
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Origin of masseter

zygomatic arch

<p>zygomatic arch </p>
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Insertion of masseter

lateral ramus and angle of the mandible

<p>lateral ramus and angle of the 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

Flexes and laterally rotates neck

<p>Flexes and laterally rotates 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 pectoralis major

intertubercular groove of humerus

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

adducts arm/flexes arm/medial rotation of arm

<p>adducts arm/flexes arm/medial rotation of arm</p>
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Origin of deltoid

Acromial end of clavicle

<p>Acromial end of clavicle </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

Extends shoulder/abducts shoulder/rotates shoulder

<p>Extends shoulder/abducts shoulder/rotates 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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Action of extensor digitorum

Extends phalanges 2-5

<p>Extends phalanges 2-5</p>
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Origin of pronator teres

Medial epicondyle of humerus

<p>Medial epicondyle of humerus </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, and coccyx

<p>ilium, sacrum, and 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 thigh/laterally rotates

<p>Extends thigh/laterally rotates </p>
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Origin of rectus femoris

Anterior inferior iliac spine

<p>Anterior inferior iliac spine </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 hip/flexes knee/laterally rotates hip

<p>Flexes hip/flexes knee/laterally rotates hip </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

Flexes knee/extends knee

<p>Flexes knee/extends knee</p>
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Origin of gastrocnemius

Lateral and medial condyles of femur

<p>Lateral and medial condyles of femur </p>
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Insertion of gastrocnemius

calcaneus

<p>calcaneus </p>
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Action of gastrocnemius

Plantar flexion / extension of foot

<p>Plantar 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>