Antagonistic Muscles Pairs

Question 1

What is the Origin ?

Answer 1

The point of muscular attachment to a stationary bone which stays relatively fixed during muscular contraction

Question 2

What is the Insertion ?

Answer 2

The point of muscular attachment to a moveable bone which gets closer to the origin during muscular contraction.

Question 3

What is the Agonist ?

Answer 3

The muscle that contracts/shortens and is responsible for the movement at the joint (also known as the prime mover.

Question 4

What is the Antagonist ?

Answer 4

The muscle that lengthens and works in opposition to the agonist to coordinate the movement

Question 5

What are the shoulder’s Antagonist Pairs ?

Answer 5

• Anterior/Posterior - Deltoid (Flexion/Extension)

-Latissimus Dorsi & Middle Deltoid (Ad/Abduction)

• Pectoralis Major & Posterior Deltoid,
  Teres minor (Horizontal-Flexion/Extension)

-Subscapularis & Teres major (Medial Rotation)

-Teres minor & infraspinatus (Lateral Rotation)

Question 6

What are the elbow’s antagonist pairs ?

Answer 6

Bicep Brachii & Tricep Brachii (Flexion/Extension)

Question 7

What are the wrists antagonistic pairs ?

Answer 7

Extensor / Flexor - Carpi Radialis (Flexion/Extension)

Question 8

What are the hips antagonistic pairs ?

Answer 8

• Illopsaos & Gluteus maximum
  (Flexion /Extension)
• Gluteus minimus & maximus (Medial/Lateral Rotation)

-Adductor/Longus,Brevis,Magnus & Gluteus medius/minimus ,Startorius (Ad/Abduction)

Question 9

What are the Knees antagonistic pairs ?

Answer 9

Bicep Femoris (Hamstring)/Rectus Femoris (Quadriceps) - (Flexion/Extension)

Question 10

What are the Ankle antagonistic pairs ?

Answer 10

Gastrocnemius / Tibialis Anterior, Soleus
(Planter/Dorsi Flexion)