Muscular System - Origins, Insertions, and Actions of a Select Group of Muscles

Lab Unit 5 - Musuclar System Flashcards

- For orgins, insertions, and actions of a slect group of muscle

47 cards   |   Total Attempts: 188
  

Cards In This Set

Front Back
Zygomaticus major - Origin
(Face and Neck)
Zygomatic bone
Zygomaticus major - Insertion
(Face and Neck)
Angle of mouth
Zygomaticus major - Action
(Face and Neck)
Elevates and abducts upper lip (as in laughing)
Sternocleidomastoid - Origin
(Face and Neck)
Sternum, clavicle
Sternocleidomastoid - Insertion
(Face and Neck)
Mastoid process
Trapezius - Origin
(Posterior Thorax)
Occipital bone, Vertebrae (spines of C7-T12)
Trapezius - Insertion
(Posterior Thorax)
Clavicle, Scapula (spine and acromion)
Trapezius - Action
(Posterior Thorax)
Elevates and depresses scapula; rotates scapula
Latissimus dorsi - Origin
(Posterior Thorax)
Vertebrae (spines of T7-L5), Ribs 8-12, sacral and iliac crests
Latissimus dorsi - Insertion
(Posterior Thorax)
Humerus (intertubercular groove)
Latissimus dorsi - Action
(Posterior Thorax)
Adducts, extends, and rotates arm (medially); Draws arm posteriorly
Pectoralis major - Origin
(Anterior Thorax)
Clavicle (medial half), sternum (body), cartilages of ribs 2-6
Pectoralis major - Insertion
(Anterior Thorax)
Humerus (greater tubercle)
Pectoralis major - Action
(Anterior Thorax)
Adducts, flexes, and medially rotates arm
Deltoid - Origin
(Shoulder)
Clavicle, scapla (spine and acromion)