Muscles Of The Trunk Posterior

Question 1

What is the action of the Splenius Capitis?

Answer 1

Extends and rotates head

Question 2

What muscle extends and rotates the head?

Answer 2

Splenius Capitis

Question 3

Where might you find the Splenius Capitis?

Answer 3

Muscle running along head to trunk

Question 4

What is the action of the Rhomboids?

Answer 4

Adducts the scapula

Question 5

Where might you find the Rhomboids?

Answer 5

Between scapula and spine

Question 6

What muscle adducts the scapula?

Answer 6

Rhomboids

Question 7

What is the action of the Supraspinatus?

Answer 7

Abducts the arm, holds humerus in socket

Question 8

What muscle abducts arm and holds humerus in its socket?

Answer 8

Supraspinatus

Question 9

Where might you find the Supraspinatus?

Answer 9

Top of the scapula (above spine)

Question 10

Where might you find the Infraspinatus?

Answer 10

Scapula (below spine)

Question 11

What is the action of the Infraspinatus?

Answer 11

Lateral rotation of humerus, stabilise humerus in its socket

Question 12

What muscle laterally rotates the humerus and stabilises it in its socket?

Answer 12

Infraspinatus

Question 13

What is the action of the Teres Major?

Answer 13

Adducts and medially rotates humerus, extends the shoulder

Question 14

Where might you find the Teres Major?

Answer 14

Side of (inferior) scapula to humerus
(inferior to minor)

Question 15

What muscle adducts and medially rotates humerus; extends shoulder?

Answer 15

Teres Major

Question 16

What is the action of the Teres Minor?

Answer 16

Lateral rotation of humerus; stabilises humerus in its socket

Question 17

What muscle laterally rotates humerus and stabilises it in its socket?

Answer 17

Teres Minor

Question 18

Where might you find the Teres Minor?

Answer 18

Side of scapula to humerus (superior to major)

Question 19

Where might you find the Erector Spinae?

Answer 19

Group of ribbon-shaped muscles on either side of spine

Question 20

What is the action of the Erector Spinae?

Answer 20

Extends vertebral column

Question 21

What muscle extends the vertebral column?

Answer 21

Erector Spinae

Question 22

What is the action of the Gluteus Minimus?

Answer 22

Abducts and rotates femur medially

Question 23

What muscle(s) abducts and rotates femur medially?

Answer 23

Gluteus Minimus & Gluteus Medius

Question 24

Where might you find the Gluteus Minimus?

Answer 24

Fan-shaped muscle underneath (deep) Gluteus Medius

Question 25

What is the action of the Gluteus Maximus?

Answer 25

Extends the hip, raises trunk, lateral rotation of hip/femur

Question 26

What muscle extends hip, raises trunk, and laterally rotates hip/femur?

Answer 26

Gluteus Maximus

Question 27

Where might you find the Gluteus Maximus?

Answer 27

Main bulk of buttock

Question 28

Where might you find the Gluteus Medius?

Answer 28

Higher on the pelvis continuing deep to Gluteus Maximus

Question 29

What is the action of the Gluteus Medius?

Answer 29

Abducts and rotates medially

Question 30

What muscle(s) abduct and rotate femur medially?

Answer 30

Gluteus Medius & Gluteus Minimus

Question 31

What is the action of the Latissimus Dorsi?

Answer 31

Draws arm backwards, adducts and rotates it medially

Question 32

What muscle draws arm backwards, adducts, and rotates it medially?

Answer 32

Latissimus Dorsi

Question 33

Where might you find the Latissimus Dorsi?

Answer 33

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