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Bioscience 610
Muscle Actions
23
Science
Graduate
01/29/2011

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Cards

Term
What is the function of the trapezius?
Definition
Elevates, retracts, and depresses the scapula
Term
What is the function of the latissimus dorsi?
Definition
Extend and medially rotates and adducts the humerus
Term
What is the function of the rhomboidei muscles?
Definition
Retract, adduct, and rotates scapula
Term
What is the function of the levator scapula?
Definition
Elevates the scapula
Term
What is the function of the deltoid?
Definition
Abducts, flexes, and extends the humerus
Term
What is the function of the teres minor?
Definition
Laterally rotates the humerus
Term
What is the function of the teres major?
Definition
Adducts and medially rotates the humerus
Term
What is the function of the supraspinatis?
Definition
Initiates abduction of the humerus
Term
What is the function of the infraspinatis?
Definition
Laterally rotates humerus
Term
What is the function of the subscapularis?
Definition
Medially rotates humerus
Term
What is the function of the serratus anterior?
Definition
Keeps scapula protracted
Term
What is the function of the serratus posterior superior
Definition
Elongate thoracic cavity for inspiration
Term
What is the function of the serratus posterior inferior?
Definition
Elongate thoracic cavity for inspiration
Term
What is the function of the splenius capitis?
Definition
Extend, rotate, and laterally flex the head
Term
What is the function of the splenius cervicis?
Definition
Extend, rotate, and laterally flex the head
Term
What is the function of the spinalis (erector spinae)
Definition
Extends and bends the vertebral column laterally
Term
What is the function of the longissimus (erector spinae)
Definition
Extends and bends the vertebral column laterally
Term
What is the function of the iliocostalis (erector spinae)
Definition
Extends and laterally bends the vertebral column
Term
What is the function of the transversospinali muscles (semispinalis, multifidus, rotatores)
Definition
Rotates and laterally bends adjacent vertebrae and stabalizes the vertebral column
Term
What is the function of the obliquus capitis inferior?
Definition
Extension, rotation, and laterally bending of the head
Term
What is the function of the rectus capitis posterior minor?
Definition
Bilaterally extends the head
Term
What is the function of the rectus capitis posterior major?
Definition
Extension, rotation, and laterally bending of the head
Term
What is the function of the obliquus capitis superior?
Definition
Extention, rotation, and laterally bends the head
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