Muscle Anatomy Quiz

What is the action of the Biceps Brachii muscle?

• Flexes elbow and supinates forearm

• Extends back (hyperextension)

• Flexes and rotates vertebral column

• Closes the jaw, chewing muscle

Which muscle is responsible for elbow flexion?

• Brachialis

• Extensor Carpi Radialis

• Flexor Carpi Radialis

• Masseter

What action does the Gluteus Maximus muscle perform?

• Abducts thigh

• Extends hip, powerful hip extensor (jumping, climbing stairs)

• Plantar flexes foot and everts foot as a group

• Flexes wrist, abduct hand

The Masseter muscle is involved in which of the following actions?

• Winking, blinking, squinting, open/close eye

• Flexes and rotates vertebral column

• Closing the jaw, chewing muscle

• Extends back (hyperextension)

Which muscle abducts the humerus?

• Deltoid

• Gluteus medius

• Latissimus dorsi

• Erector spinae

Which muscle is known as the "kissing" muscle?

• Pectoralis major

• Orbicularis oris

• Platysma

• Zygomaticus

What is the action of the Sternocleidomastoid muscle?

• Flexes vertebral column

• Adduct and flexes humerus

• Plantar flexes foot

• Flexes neck, rotates head when only one of pair is activated

Which muscle is the prime mover of elbow extension, often referred to as the "boxer's muscle"?

• Biceps Brachii

• Triceps Brachii

• Brachialis

• Anconeus

What is the primary action of the Rectus abdominis muscle?

• Compresses abdominal contents

• Flexes vertebral column

• Elevates the lower jaw

• Adduct and flexes humerus

Which muscle is responsible for dorsiflexion and inversion of the foot?

• Soleus

• Gastrocnemius

• Tibialis Anterior

• Peroneus Longus