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Human Anatomy - Human Muscles
Action, Insertion and Origine of Human Muscles
71
Biology
Undergraduate 2
03/17/2010

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Term
Rectus Abdominis
Definition

O: Pubic Crest

 

I: Xiphoid Process, Ribs 5-7

 

A: Flexes Vertebral Column, compress abdomen

Term
Rhomboid Minor
Definition

O: Spinous Processes C7-T1, Vertebrae Bones

 

I: Medial Border of the Scapula Bone above spine

 

A: Elevates and Adducts Scapula Bone

Term
Pectoralis Minor
Definition

O: Rib Bones 3-5

 

I: Coracoid Process of Scapula Bone

 

A: Protracts and Depresses Scapula

Term
Levator Scapulae
Definition

O: Transverse Process C1-C4, Vertebrae Bones

 

I: Upper medial bones of scapula bone

 

A: Elevates Scapula Bone

Term
Internal Oblique
Definition

O: Lumbar Fascia, Inguinal Ligament

 

I: Linea alba, pubic Crest

 

A: Flexes vertebral Column, Compresses abdomen

Term
Rhomboid Major
Definition

O: Spinous Processes T2-T5 vertebrae bone

 

I: Lower medial border of the scapula bone

 

A: Elevates and adducts scapula bone, retracts scapula bone

Term
Trapezius
Definition

O: Occipital Bone, Ligamentum nuchae, Spinous Processes C7-T12 vertebrae Bones

 

I: Spine and acromion process of scapula bone and claviche

 

A: Elevates, retracts and depresses the scapula bone

Term
Pectoralis Major
Definition

O: Clavicle, Costal cartilages of Ribs 2-6, and body of sternum

 

I: Greater tubercle, intubercular groove of humerus

 

A: Arm flexion, adduct and medially rotates arm

Term
External Oblique
Definition

O: Ribs 5-12

 

I: Linea Alba

 

A: Flexes vertebral column, lateral flexion and rotation of vertebral column, compresses abdomen

Term
Serratus Anterior
Definition

O: Rib Bones 1-8

 

I: Medial Border, Anterior surface of scapula bone

 

A: Protracts scapula, stabilizes scapula

Term
Transversus abdominus
Definition

O: Thoracolumbar Fascia, Inguinal Ligament

 

I: Linea alba, Pubic Crest

 

A: Lateral Flexion and Flexion of vertebral column, compresses abdomen

Term
Deltoid
Definition

O: Acromion and spine of scapula, acromial end of clavicle

 

I: Deltoid tuberosity of humerus bone

 

A: Shoulder abduction; Flexes extends laterally and medially rotates arm

Term
Latissimus Dorsi
Definition

O: Ribs 8-12, Spinous Processes of T2-T12, Dorsolumbar fascia

 

I Inertubercular groove of humerus bone

 

A: Arm extension, adduction and medial rotation (swimming)

Term
Subscapularis
Definition

O: Subscapular Fossa of Scapula

 

I: Lesser tubercule of humerus

 

A: Medially rotates Arm

Term
Supraspinatus
Definition

O: Subscapular fossa of scapula

 

I: Greater tubercle of Humerus

 

A: Abducts arm

Term
Longissimus
Definition

O: Tendon from posterior part of iliac crest, posterior sacrum, Lumbar spinous process

 

I: Mastoid process of temporal bone and transverse process of cervical and thoracic vertebrae

 

A: Extends neck and vertebrae column and rotates head; maintain posture

Term
Iliocostalis
Definition

O: Tendon from posterior part of iliac crest, posterior sacrum, lumbar spinous process

 

I: Angle of ribs, transverse process of cervical vertebrae

 

A: Extends neck and vertebral column; helps maintain posture

Term
Spinalis
Definition

O: Lumbar spinous processes (Thoracic part) & C7 spinous process (cervical part)

 

I: Spinous process of axis & Thoracic Vertebrae

 

A: Extends neck and vertebral column; maintains posture

Term
Infraspinatus
Definition

O: Infraspinatus fossa of Scapula

 

I: Greater tubercle of humerus

 

A: Adducts and laterally rotates arm

Term
Teres Minor
Definition

O: Upper dorsal lateral border of scapula (superior to teres major origin)

 

I: Greater tubercle of humerus

 

A: Adducts and laterally rotates arm

Term
Teres Major
Definition

O: Inferior Lateral border and inferior angle of scapula

 

I: Lesser Tubercle and intertubercular groove of humerus

 

A: extends, adducts, and medially rotates arm

Term
Brachioradialis
Definition

O: Lateral Supracondylar Ridge of Humerus

 

I: Styloid Process of Radius

 

A: Flexes Forearm

Term
External Intercostal
Definition

O: Inferior Border of Superior rib

 

I: Superior border of Inferior Rib

 

A: Elevates Ribs during Inhalation

Term
Diaphragm
Definition

O: Inferior surface of Ribs Bones 7-12, Xiphoid process of sternum, costal cartilages of inferior 6 rib bones and the lumbar vertebrae

 

I: Central Tendon

 

A: Respiration

Term
Palmaris Longus
Definition

O: Medial epicondyle of humerus bone

 

I: Flexor retinaculum, palmar aponeurosis

 

A: Flexes Wrist

Term
Pronator Teres
Definition

O: Medial epicondyle of humerus; coronoid process of ulna

 

I: Lateral Surface of Radius Bone

 

A: Pronates Forearm

Term

Triceps Brachii

- Long Head -

Definition

O: Infraglenoid Subercle of Scapula Bone

 

I: Olecranon Process of ulna bone

 

A: Extends forearm, extends and adducts arm

Term

Triceps Brachii

- Lateral Head-

Definition

O: Posterior Humerus Bone

 

I: Olecranon Process of Ulna Bone

 

A: Extends Forearm

Term

Triceps Brachii

- Medial Head -

Definition

O: Posterior Humerus Bone

 

I: Olecranon Process of Ulna Bone

 

A: Extends Forearm

Term

Biceps Brachii

- Long Head -

Definition

O: Supraglenoid tubercle of scapula bone

 

I: Radial tuberosity of radius bone

 

A: Flexes and supinates forearm, flexes arm

Term

Biceps Brachii

- Short Head -

Definition

O: Coracoid process of scapula

 

I: Radial Tuberocity and bicipital aponeurosis

 

A: Flexes forearm, supinates forearm

Term
Flexor Carpi Radialis
Definition

O: Medial epicondyle of humerus bone

 

I: Metacarpal II & III

 

A: Flexes Wrist and abducts hand

Term
Flexor Carpi Ulnaris
Definition

O: Medial epicondyle of humerus, olecranon of ulna bone

 

I: hamate and pisiform bones, metacarpal bone V

 

A: Flexes wrist and adducts hand

Term
Extensor Digitorum
Definition

O: Lateral epicondyle of humerus Bone

 

I: Distal and middle phalanx bones of digits 2-5

 

A: Extends wrist and digits 2-5

Term
Extensor Carpi Ulnaris
Definition

O: Lateral epicondyle of humerus, posterior ulna

 

I: Metacarpal Bone V

 

A: Extends wrist, adducts hand

Term
Flexor Digitorum Superficialis
Definition

O: Medial epicondyle of humerus, coronoid process of ulna bone

 

I: Middle Phalanx Bones, Digits 2-5

 

A: Flexes wrist

Term
Extensor Carpi Radialis Longus
Definition

O: Lateral Supercondylar Ridge of humerus Bone

 

I: Metacarpal Bone II

 

A: Extends Wrist, Abducts hand

Term
Extensor Carpi Radialis Brevis
Definition

O: Lateral Epicondyle of humerus Bone

 

I: Metacarpal Bone III

 

A: Extends Wrist, abducts hand

Term
Vastus Lateralis
Definition

O: Greater trochanter and linea aspera of femur bone

 

I: Quadriceps tendon and patellar ligament to tibial tuberosity

 

A: extends Leg

Term
Vastus Intermedius
Definition

O: Anterolateral surface of femur bone

 

I: Quadriceps tendon and patellar ligament to tibial tuberosity

 

A: Extends Leg

Term
Vastus Medialis
Definition

O: Intertrochanteric line and linea aspera of femur bone

 

I: Quadriceps tendon and patellar ligament to tibial tuberosity

 

A: Extends Leg

Term
Biceps Femoris
Definition

O: Ischial tuberosity and Linea Aspera of Femur

 

I: Head of Fibula Bone

 

A: Extends Thigh, fles and laterally rotates leg

Term
Semitendinosus
Definition

O: Ischial Tuberosity


I: Proximal Medial Tibia Bone

 

A: Extends Thigh, flex and medially rotates leg

Term
Semimembranosus
Definition

O: Ischial Tuberosity

 

I: Medial Condyle of Tibia

 

A: Extends thigh, flexes leg, medially rotates hip

Term

Iliopsoas

- Psoas Major -

Definition

O: Transverse Processes and bodies of T12 - L5 vertebrae bones

 

I: Lesser Trochanter of Femur

 

A: Flexes Thigh

Term

Iliopsoas

- Iliacus -

Definition

O: Iliac Fossa

 

 

I: Lesser Trochanter of Bone

 

A: Flexes Thigh

Term
Sartorious
Definition

O: anterior Superior spine of ilium bone

 

I: Medial Side of Tibial Tuberosity

 

A: Flexes thigh, lateral rotation of thigh, leg flexion, medial rotation of leg

Term
Adductor Longus
Definition

O: Pubis Bone adjacent to pubic symphysis

 

I: Linea aspera of femur bone

 

A: Adducts and flexes thigh

Term
Gracilis
Definition

O: inferior Ramus and body of pubis bone

 

I: Upper medial tibia bone

 

A: Adducts and flexes thigh, flexes leg

Term
Tensor fasciae Latae
Definition

O: Iliac Crest and Anterior Superior iliac spine

 

I: Iliotibial Band

 

A: Adducts and medially rotates thigh

Term
Gluteus Maximus
Definition

O: Iliac crest, sacrum and coccyx bones

 

I: Iliotibial band, lilnea aspera of femur

 

A: Extends and laterally rotates thigh

Term
Gluteus Medius
Definition

O: Posterior of iliac crest

 

I: Greater trochanter of femur bone

 

A: Abducts and medially rotates thigh

Term
Rectus Femoris
Definition

O: Anterior Inferior Spine of Ilium Bone

 

I: Quadriceps tendon, patellar ligament to tibial tuberosity

 

A: Flexes Thigh, Extends Leg

Term

Gastrochnemius

- Lateral Head -

Definition

O: Lateral Condyle of femur Bone

 

I: Calcaneus Bone via the calcaneal tendon

 

A: Flexes leg, plantar flexes foot

Term

Gastrocnemius

- Medial Head -

Definition

O: Medial Condyle of femur Bone

 

I: Calcaneus Bone via the calcaneal

 

A: flexes leg, plantar flexes foot

Term

Soleus

Definition

O: Medial Tibia, head and shaft of fibula

 

I: Calcaneous bone via the calcaneal tendon

 

A: Plantar Flexes Foot

Term
Fibularis Longus
Definition

O: Lateral condyle of tibia and head and upper shaft of fibula

 

I: Metatarsal Bone I and medial cuneiform bone

 

A: Everts Foot

Term
Tibialis Anterior
Definition

O: Lateral Condyle of tibia, interosseous membrane

 

I: Metatarsal Bone I and medial cuneiform bone

 

A: Dorsiflexes and inverts foot

Term

Occipitolfrontalis

- Frontal Belly -

Definition

O: Frontal Bone

 

I: Epieranial Aponeurosis

 

A: Raises Eyebrows, wrinkles forehead

Term

Occipitolfrontalis

- Occipital Belly -

Definition

O: Superior nuchal line of the occipital Bone

 

I: Epicranial Aponeurosis

 

A: Pulls scalp posteriorly

Term
Temporalis
Definition

O: Temporal Bone

 

I: Mandible

 

A: Closes Jaw

Term
Orbicularis Oculi
Definition

O: Frontal Bone, Maxilla Bone

 

I: Skin of Eyelid

 

A: Closes Eyelid

Term
Zygomaticus Major
Definition

O: Zygomatic Bone

 

I: Skin at superolateral edge of the mouth

 

A: Smiling

Term
Orbicularis Oris
Definition

O: Maxilla Bone and Mandible Bone

 

I: Muscle, skin of mouth

 

A: Closes Lips; Kissing

Term
Platysma
Definition

O: Fascia of chest muscles and acromion of scapula

 

I: Skin of Cheek and Mandible bone

 

A: Tense skin of the neck

Term
Masseter
Definition

O: Zygomatic Arch

 

I: Mandible

 

A: Closes Jaw

Term
Digastric
Definition

O: Mandible Bone and Mastoid process of temporal bone

 

I: Hyoid Bone

 

A: Depresses mandible bone, elevates hyoid bone, opens mouth

Term
Mylohyoid
Definition

O: Mandible Bone

 

I: Hyoid Bone

 

A: Elevates Hyoid and floor of the mouth

Term
Sternohyoid
Definition

O: Manubrium of the sternum bone and the clavicle

 

I: Hyoid Bone

 

A: Depresses hyoid Bone

Term
Sternothyroid
Definition

O: Manubrium of the sternum bone

 

I: Thyroid cartilage of the larynx

 

A: Depresses thyroid cartilage of the larynx

Term
Thyrohyoid
Definition

O: Thyroid cartilage of the Larynx

 

I: Hyoid Bone

 

A: Depresses hyoid bone and elevates thyroid cartilage of the larynx

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