Shared Flashcard Set

Details

Skeletal Muscles
The actions, origins and insertions of the human body skeletal muscules
58
Anatomy
Undergraduate 2
10/26/2008

Additional Anatomy Flashcards

 


 

Cards

Term

 

 

Pectoralis Major

Definition

Action: Flexes upper arm at the shoulder, adducts and medially rotates shoulder

 

Origin: Clavicle, Sternum and Ribs

 

Insertion: Intertubercular groove of humerus

Term

 

 

 

Sternocleidomastiod

Definition

Action: Flexes neck

 

Origin: Manubrium of sternum and Clavicle

 

Insertion: Mastiod process of the temporal bone

Term

 

 

 

Sternohyoid

Definition

Action: Depresses hyoid

 

Origin: Manubrium of sternum

 

Insertion: Hyoid bone

Term

 

 

 

Diagastric

Definition

 

 

 

Action: Elevates hyoid bone

Term

 

 

 

 Platysma

Definition

 

 

 

Action: Depresses mandible

Term

 

 

 

Deltoid

Definition

Action: Abducts humerus at shoulder

 

Origin: Clacivle and Spine of scapula

 

Insertion: Deltoid tuberosity of humerus

Term

 

 

 

Trapezius

Definition

Action: Extends head, rotates and retracts scapula

 

Origin: Occipital bone and Vertebrae

 

Insertion: Acromion and spine of scapula, and Clavicle

Term

 

 

 

Levator Scapulae

Definition

 

 

 

Action: Elevates and adducts scapula

Term

 

 

 

Supraspinatus

Definition

Action: Abduction of the arm at the shoulder

 

Origin: Supraspinous fossa

 

Insertion: Greater tubercle of the humerus

Term

 

 

 

Infraspinatus

Definition

Action: Lateral rotation of the arm at the shoulder

 

Origin: Infraspinous fossa

 

Insertion: Greater tubercle of the humerus

Term

 

 

 

Teres Minor

Definition

Action: Lateral rotation of the arm at the shoulder

 

Origin: Lateral margin of scapula

 

Insertion: Greater tubercle of the humerus

Term

Subscapularis

Definition

Action: Medial rotation of the arm at the shoulder

 

Origin: Subscapular fossa

 

Insertion: Lesser tubercle of the humerus

Term

 

 

 

Teres Major

Definition

 

 

 

Action: Extends, Medially rotates and adducts humerus

Term

 

 

 

Mylohyoid

Definition

Action: Elevates hyoid

 

Origin: Mandible

 

Insertion: Hyoid bone

Term

 

 

 

Pectoralis Minor

Definition

Action: Draws scapula forward

 

Origin: Ribs

 

Insertion: Coracoid process of scapula

Term

 

 

 

Triceps brachii

Definition

 

Action: Extends forearm at elbow

 

Insertion: Olecranon process of the ulna

Term

 

 

 

Brachialis

Definition

Action: Flexes forearm at the elbow

 

Origin: Humerus

 

Insertion: Coroniod process of ulna

Term

 

 

 

Brachioradialis

Definition

Action: Flexes forearm at elbow

 

Origin: Humerus

 

Insertion: Styloid process of radius

Term

 

 

 

Extensors

Definition

 

 

 

Action: Extends hand at the wrist

Term

 

 

 

Biceps brachii

Definition

Action: Flexes forearm at the elbow, supinates forearm at the elbow

 

Origin: Coracoid process of scapula

 

Insertion: Radial tuberosity

Term

 

 

 

Flexors

Definition

 

 

 

Action: Flexes hand at wrist

Term

 

 

 

Transverse abdominus

Definition

 

 

 

Action: Compresses abdominal contends

Term

 

 

 

Internal obliques

Definition

 

 

 

Action: Flexes and laterally rotates vertebral column

Term

 

 

 

External Obliques

Definition

 

 

 

Action: Flexes and laterally rotates vertebral column

Term

 

 

 

Rectus abdominus

Definition

Action: Flexes and rotates vertebral column

 

Origin: Pubic crest and symphysis

 

Insertion: Xiphoid process of sternum

Term

 

 

 

External intercostals

Definition

 

 

 

Action: Elevates ribcage

Term

 

 

 

Serratus Anterior

Definition

 

 

 

Action: Rotates scapula, abducts upper arm

Term

 

 

 

Latissimus dorsi

Definition

 

 

 

Action: Extends arm at the shoulder, adducts and medially rotates arm

Term

 

 

 

Rhomboid muscles

Definition

 

 

 

Action: Retracts scapula

Term

 

 

 

Extensor digitorum longus

Definition

 

 

 

Action: Dorsiflexes foot

Term

 

 

 

Tibialis anterior

Definition

 

 

 

Action: Dorsiflexes the foot

Term

 

 

 

Biceps femoris

Definition

Action: Extends thigh at hip and flexes lower leg at knee

 

Origin: Ischial tuberosity

 

Insertion: Tibia

Term

 

 

 

Gluteus medius

Definition

 

 

 

Action: Abducts and medially rotates thigh at hip

Term

 

 

 

Gluteus maximus

Definition

 

 

 

Action: Extends thigh at hip

Term

 

 

 

Semimembranosus

Definition

Action: Extends leg at thigh, flexes lower leg at knee

 

Origin: Ischial tuberosity

 

Insertion: Medial condyle of the tibia and lateral condyle of the femur

Term

 

 

 

Semitendinosus

Definition

Action: Extends leg at thigh, flexes lower leg at knee

 

Origin: Ischial tuberosity

 

Insertion: Tibia

Term

 

 

 

Rectus femoris

Definition

Action: Extends lower leg at knee

 

Origin: Anterior superior iliac spine

 

Insertion: Tibial tuberosity

Term

 

 

 

Vastus medialis

Definition

Action: Extends lower leg at the knee

 

Origin: Linea aspera of femur

 

Insertion: Tibial tuberosity

Term

 

 

 

Vastus Lateralis

Definition

Action: Extends lower leg at knee

 

Origin: Greater trochanter of femur

 

Insertion: Tibial tuberosity

Term

 

 

 

Adductor longus and femoris

Definition

 

 

 

Action: Adducts thigh at hip

Term

 

 

 

Pectineus

Definition

 

 

 

Action: Adducts thigh at the hip

Term

 

 

 

Tensor fascia latae

Definition

 

 

 

Action: Flex, abduct and medially rotate thigh

Term

 

 

 

Gracilis

Definition

Action: Adducts thigh at hip

 

Origin: Pubis

 

Insertion:  Medial condyle of tibia

Term

 

 

 

Sartorius

Definition

Action: Flexes, abducts and laterally rotates thigh (crosses legs)

 

Origin: Anterior superior iliac spine

 

Insertion: Tibia

Term

 

 

 

Peroneus

Definition

 

 

 

Action: Plantar flexes foot

Term

 

 

 

Gastrocnemius

Definition

 

 

 

Action: Plantar flexes foot

Term

 

 

 

Soleus

Definition

 

 

 

Action: Plantar flexes foot

Term

 

 

 

Mentalis

Definition

 

 

 

Action: Wrinkles chin

Term

 

 

 

Depressor labii inferioris

Definition

 

 

 

Action: Draws lips inferiorly

Term

 

 

 

Orbicularis oris

Definition

 

 

 

Action: Puckers lips

Term

 

 

 

Risorius

Definition

 

 

 

Action: Draws lips laterally (tenses lips)

Term

 

 

 

Zygomaticus

Definition

 

 

 

Action: Smiling

Term

 

 

 

Buccinator

Definition

 

 

 

Action: Compresses cheek (whistling)

Term

 

 

 

Frontalis

Definition

 

 

 

Action: Raises eyebrows

Term

 

 

 

Levator labii superioris

Definition

 

 

 

Action: Raises upper lip

Term

 

 

 

Orbicularis oculi

Definition

 

 

 

Action: Blinking and Squinting

Term

 

 

 

Masseter

Definition

 

 

 

Action: Elevates mandible (closes jaw)

Term

 

 

 

Temporalis

Definition

 

 

 

Action: Elevates and retracts mandible (closes jaw)

Supporting users have an ad free experience!