Shared Flashcard Set

Details

OCCC A&P I Muscles
Actions, Origins, Insertions
23
Anatomy
Undergraduate 2
11/24/2009

Additional Anatomy Flashcards

 


 

Cards

Term
Orbicularis Oris
Definition

Action: closes, purses and protrudes the lips

Origin: Maxilla & Mandible 

Insertion: Muscle and skin of the angles of the mouth

Term
Masseter
Definition

Action: agonist in elevating the mandible

Origin: zygomatic arch and maxilla 

Insertion: angle of the mandible

Term
Sternocleidomastoid
Definition

Action: head and neck flexion, rotation of the head

Origin: Manubrium of sternum and clavicle 

Insertion: Mastoid process of temporal bone and occipital bone

Term
Deltoid
Definition

Action: agonist in arm abduction, flexion and medial rotation of humerus

Origin: Insertion of trapezius, clavicle, acromion, spine of scapula 

Insertion: Deltoid tuberosity of humerus

Term
Pectoralis major
Definition

Action: agonist in arm flexion, adducts arm, rotates arm medially

Origin: clavicle, sternum, cartilage of ribs 1-6 

Insertion: intertubercular groove of the humerus

Term
Teres major
Definition

Action: medially rotates and adducts the humerus, synergist of lattismus dorsi

Origin: posterior surface of the scapula 

Insertion: Intertubercular groove of the humerus

Term
Rectus abdominis
Definition

Action: flex and rotate lumbar region

Origin: pubic crest and pubic symphysis

Insertion: xiphoid process and costals

Term
Latissimus dorsi
Definition

Action: adducts and extends arm, depresses scapula

Origin: spines of T6-T12, lumbar vertebrae, lower ribs, iliac crest 

Insertion: intertubercular groove of the humerus

Term
Biceps brachii
Definition

Action: elbow flexion, forearm supination

Origin: short head-coracoid process, long head-glenoid cavity and intertubercular groove

Insertion: radial tuberosity

Term
Triceps brachii
Definition

Action: agonist in forearm extension

Origin: Long head-scapula, lateral head-posterior humerus, medial head-posterior humerus

Insertion: Olecranon process of the ulna

Term
Brachialis
Definition

Action: Flexor of forearm

Origin: Front of distal humerus

Insertion: Coronoid process of ulna

Term
Rectus femoris
Definition

Action: Extends knee, Flexion of thigh at hip

Origin: Anterior inferior iliac spine, acetabulum

Insertion: Patella, tibial tuberosity via the patellar tendon

Term
Sartorius
Definition

Action: Flexes, abducts & laterally rotates the thigh

Origin: Anterior superior iliac spine 

Insertion: medial and proximal aspect of tibia

Term
Gracilis
Definition

Action: Adducts, flexes & medially rotates the thigh, aids in knee flexion

Origin: Inferior ramus, body of pubis, ischial ramus 

Insertion: Medial surface of tibia

Term
Gluteus maximus
Definition

Action: Thigh extensor, laterally rotates and abducts the thigh

Origin: Dorsal ilium, sacrum, & coccyx 

Insertion: Gluteal tuberosity of femur

Term
Biceps femoris
Definition

Action: Extends thigh, flexes knee, lateral rotation of leg

Origin: Ischial tuberosity, linea aspera of femur 

Insertion: Head of fibula, lateral condyle of tibia

Term
Gastrocnemius
Definition

Action: Plantar flexion

Origin: Medial & lateral condyles of femur 

Insertion: Calcaneus via the achilles tendon

Term
Tibialis anterior
Definition

Action: Agonist in dorsiflexion, inversion of the foot

Origin: Lateral condyle and shaft of tibia 

Insertion: Medial cuneiform, first metatarsal via tendon

Term
Chewing with the mandible
Definition

1.Buccinator

2.Masseter

3.Temporalis

Term
Pursing the lips to whistle
Definition
Orbicularis Oris
Term
Increasing the size of the thoracic cavity for ventilation of the lungs
Definition

1.Diaphragm

2.External Intercostals

3.Internal Intercostals

Term
Moving and stabilizing the shoulder
Definition
1.Trapezius 2.Deltoid 3.Pectoralis Major 4.Rhomboid Major 5.Supraspinatus 6.Infraspinatus 7.Teres Major 8.Latissimus Dorsi 
Term
Muscles moving the knee
Definition
1.Rectus Femoris 2.Vastus Lateralis 3. Vastus Medialis 4.Sartorius 5.Biceps Femoris 6.Semitendinosus 7.Semimembranosus 8.Gracillis
Supporting users have an ad free experience!