Antagonistic Muscles

Question 1

This is the muscle of the head/neck that flexes chin to chest? This is the extension?

Answer 1

1. Sternocleidomastoid
2. Trapezius- superficial
3. Splenious capitus-deep

Question 2

These are the muscles that flex the trunk so you can bend to touch your toes (3)? This is the extension?

Answer 2

1. Rectus abdominus
   Psoas Muscle
   Iliacus
2. Erector Spinae

Question 3

These are the muscles that flex thigh at hip? This is the extension?

Answer 3

1. Psoas Major
    Iliacus
    Rectus Femoris
    Sartorius
    Gracilis
2. Gluteus Maximus

Question 4

These muscles flex the arm at the shoulder? These muscles extend the arm at the shoulder?

Answer 4

1. Biceps brachii
   Pectoralis major
2. Triceps brachii
   Latissumus dorsi

Question 5

These muscles flex the arm at the forearm/elbow? These extend them?

Answer 5

1. Biceps brachii

2. Triceps brachii

Question 6

These muscles flex the leg at the knee? These extend the leg at the knee?

Answer 6

1. Hamstring
    Biceps femoris
    Semitendinosus (medial)
    Semimenranosus (medial) 
2. Quadriceps
    Rectus femoris
    Vastus latoralis, medialis and intermedius

Question 7

These muscles plantar flex the foot at the ankle?

Answer 7

1. Soleus

2. Gastrocnemius

Question 8

These muscles dorsiflex the foot at the ankle?

Answer 8

1. Tibialis anterior

Question 9

These muscles abduct the arm away from the body? These adduct the arm towards the body?

Answer 9

1. Deltoid

2. Latissimus dorsi

Question 10

These muscles abduct the leg away from the body? These adduct the leg towards the body?

Answer 10

1. Gluteus medius
2. Gracilis
   Adductor Group