Human Muscles - Functions and Purpose

Question 1

Concentrally accelerates hip flexion and external rotation. Concentrally extends and rotate lumbar spinae

Answer 1

Psoas

Question 2

Concentrally accelerates hip external rotation, abduction and extension

Answer 2

piriformis

Question 3

Concentrically accelerates knee extension and hip flexion

Answer 3

Rectus Femoris

Question 4

Deep Anterior: Concentrically accelerates knee extensions

Answer 4

Vastus Intermedius

Question 5

Superficial Anterior: Concentrically accelerates knee extensions

Answer 5

Vastus Medialis

Question 6

Superficial Anterior: Concentrically accelerates dorsiflexion and inversion

Answer 6

Anterior Tibialis

Question 7

Superficial Anterior: Concentrically accelerates elbow flexion, supination of the radioulnar joint, and shoulder flexion

Answer 7

Biceps Brachii

Question 8

Superficial Anterior: Concentrically accelerates shoulder flexion and internal rotation

Answer 8

Anterior Deltoid

Question 9

Concentrically accelerates shoulder abduction

Answer 9

Medial Deltoid

Question 10

Superficial Anterior: Concentrically accelerates shoulder flexion (clavicular fibers), horizontal adduction, and internal rotation

Answer 10

Pectoralis Major

Question 11

Deep anterior: Concentrically protacts the scapula

Answer 11

Pectoralis Minor

Question 12

Superficial Posterior: Concentrically accelerates cervical extension, lateral flexion, rotation, and accelerates scapular elevation

Answer 12

Upper Trapezius

Question 13

Superficial Posterior: Concentrically accelerates scapular retraction

Answer 13

Middle Trapezius

Question 14

Superficial Posterior: Concentrically accelerates scapular depression

Answer 14

Lower Trapezius

Question 15

Deep Posterior: Concentrically accelerates shoulder internal rotation

Answer 15

Subscapularis

Question 16

Deep Posterior: Concentrically accelerates shoulder external rotation

Answer 16

Teres Minor

Question 17

Deep Posterior: Concentrically accelerates spinal extension, rotation, and lateral flexion

Answer 17

Erector Spinae

Question 18

Deep Posterior: Spinal Lateral flexion

Answer 18

Quadratus Lumborum

Question 19

Deep Posterior: Concentrically accelerates hip abduction and internal rotation

Answer 19

Gluteus Minimus

Question 20

Superficial Posterior: Concentrically accelerates knee flexion and tibial external rotation

Answer 20

Biceps Femoris - Short Head

Question 21

Superifical Posterior: Concentrically accelerates knee flexion and hip extension and tibial external rotation

Answer 21

Biceps Femoris - Long head

Question 22

Superficial Posterior: Concentrically accelerates knee flexion, hip extension, and tibial internal rotation

Answer 22

Semitendinosis

Question 23

Superficial Posterior: Concentrically accelerates knee flexion, hip extension, and tibial internal rotation

Answer 23

Semimembranosus

Question 24

Superficial Posterior: Concentrically Accelerates plantarflexion

Answer 24

Gastrocnmemius

Question 25

Deep Posterior: concentrically accelerates plantarflexion

Answer 25

Soleus

Question 26

Deep Posterior: Concentrically accelerates plantarflexion and inversion of the foot

Answer 26

Posterior Tibialis