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Muscles Huffinator
Origin, Insertion, Action, Innervation
32
Anatomy
Undergraduate 2
02/08/2011

Additional Anatomy Flashcards

 


 

Cards

Term

Orbicularis Oris

 

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Definition

Origin: Muscles around mouth

Insertion: skin or outer mouth

Action: closes/protrudes lips

Innervation: Facial VII nerve

Term

Orbicularis oculi

 

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Definition

Origin: medial wall or orbit

Insertion: circular path or orbit

Action: closes eye

Innervation: Facial VII nerve

Term

Zygomaticus

 

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Definition

Origin: locate only: occipitalis, frontalis, temporalis Insertion:

Action: Smiling

Innervation: Facial VII nerve

Term

Masseter

 

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Definition

Origin: Maxilla & Zygomatic Arch

Insertion: angle & ramus of mandible

Action: Chewing

Innervation: Mandibular division of trigeminal V nerve

Term

Sternocleidomastoid

 

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Definition

Origin: Sternum and clavicle

Insertion: Mastoid process

Action: Flexes neck

Innervation: Accessory XI nerve

Term

Trapezius

 

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Definition
Origin: Occipital bone and all thoracic vertabrae Insertion: Clavicle and acromion and spine of scapula Action: Elevates scapula, extends neck Innervation: Accessory XI nerve and cervical spinal nerves C3-C5
Term

Pectoralis Major

 

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Definition

Origin: Clavicle/Sternum

Insertion: Greater tubercle of the humerus

Action: Adducts & Flexes arm at shoulder

Innervation: Medical and lateral pectoral nerves

Term

Rectus Abdominis

 

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Definition

Origin: Public Symphysis

Insertion: Xiphoid process of sternum

Action: Flexes vertebral column

Innervation: Thoracic spinal nerves T7-T12

Term

Latissimus Dorsi

 

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Definition

Origin: Lower thoracic and lumbar vertebrae

Insertion: intertubercular sulcus of the humerus

Action: Extends Arm at shoulder joint

Innervation: Thoracodorsal nerve

Term

Gluteus Maxiums

 

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Definition

Origin: Lliac crest, sacrum, coccyx

Insertion: gluteal tuberosity of femur

Action: extends thigh at hip joint

Innervation: inferior gluteal nerve

Term

Gluteus Medius

 

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Definition

Origin: Lliac Crest

Insertion: Greater Trochanter of femure

Action: Abducts thigh at hip joint

Innervation: Superior gluteal nerve

Term

Biceps Brachii

 

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Definition

Origin: Coracoid & supraglenoid tubercle/scapula Insertion: Radial tuberosity of radius

Action: Flexes forearm at elbow joint

Innervation: Musculocutaneous nerve

Term

Triceps Brachii

 

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Definition

Origin: infraglenoid tubercle of scapula and humerus Insertion: Olecranon of ulna

Action: Extends forearm at elbow joint

Innervation: Radial Nerve

Term

Brachialis

 

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Definition

Origin: anterior surface of the humerus

Insertion: ulnar tuberosity of ulna

Action: extends forearm at elbow joint

Innervation: Musculocutaneous and radial nerves

Term

Deltoid

 

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Definition

Origin: Clavicle and scapula

Insertion: deltoid tuberosity of humerus

Action: abducts, flexes, extends arm

Innervation: axillary nerve

Term

Supraspinatus

 

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Definition

Origin: scapula

Insertion: humerus

Action: abducts arm at shoulder joint

Innervation: suprascapular nerve

Term

Infraspinatus

 

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Definition

Origin: Scapula

Insertion: Humerus

Action: Rotates arm at shoulder joint

Innervation: Suprascapular Nerve

Term

Teres Minor

 

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Definition

Origin: Scapula

Insertion: Humerus

Action: Rotates arm at shoulder joint

Innervation: Axillary Nerve

Term

Teres Major

 

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Definition

Origin: Scapula

Insertion: Humerus

Action: Rotates arm at shoulder joint

Innervation: Lower subscapular nerve

Term

Adductor Magnus

 

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Definition

Origin: Pubis to ischial tuberosity

Insertion: linea aspera of femur

Action: Adducts thigh at hip joint

Innervation: Obturator and sciatic nerves

Term

Adductor Longus

 

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Definition

Origin: Pubis

Insertion: Linea aspera of femur

Action: Adducts thigh at hip joint

Innervation: Obturator nerve

Term

Gracilis

 

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Definition

Origin: Pubis

Insertion: Medial Sruface of tibia

Action: Adducts thigh at hip joint

Innervation: Obturator nerve

Term

Sartorius

 

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Definition

Origin: Anterior superior iliac spine

Insertion: Medial surface of tibia

Action: Flexes leg at knee and hip

Innervation: Femoral nerve

Term

Rectus Femoris

 

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Definition

Origin: Anterior inferior iliac spine

Insertion: Tibial tuberosity

Action: extend leg at knee joint; flexes thigh at hip joint Innervation: Femoral Nerve

Term

Vastus Medialis

 

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Definition

Origin: Linea aspera of femur

Insertion: tibial tuberosity

Action: Extend leg at knee joint

Innervation: Femoral Nerve

Term

Vastus Lateralis

 

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Definition

Origin: Greater trochanter of femur

Insertion: tibial tuberosity

Action: Extend leg at knee joint

Innervation: Femoral Nerve

Term

Vastus Intermedius

 

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Definition

Origin: Anterior/lateral surfaces of body of femur Insertion: tibial tuberosity

Action: Extend leg at knee joint

Innervation: Femoral Nerve

Term

Biceps femoris

 

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Definition

Origin: Ischial Tuberosity

Insertion: head of fibia/lateral Action: Flexes leg at knee joint and extends thigh at hip joint

Innervation: Tibial and common peroneal nerves from the sciatic nerve

Term

Semimembranosus

 

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Definition

Origin: Ischial Tuberosity

Insertion: Medial surface of tibia

Action: Flexes leg at knee joint and extends thigh at hip joint

Innervation: Tibial nerve from the sciatic nerve

Term

Semitendinosus

 

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Definition

Origin: Ischial Tuberosity

Insertion: Medial surface of tibia

Action: Flexes leg at knee joint and extends thigh at hip joint

Innervation: Tibial nerve from the sciatic nerve

Term

Gastrocnemius

 

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Definition

Origin: Lateral/medial condyles of femur

Insertion: Calcaneus

Action: Planter flexes foot

Innervation: Tibial nerve

Term

Tibialis Anterior

 

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Definition

Origin: Lateral condyle of tibia

Insertion: First Metatarsal

Action: Dorsiflexes foot

Innervation: Deep fibular (peroneal) nerve

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