Human Anatomy - Muscular System

Which muscle is responsible for flexing the forearm?

• pectoralis major

• deltoid

• triceps brachii

• biceps brachii

What is the largest muscle in the human body?

• quadriceps maximus

• biceps maximus

• trapezius maximus

• gluteus maximus

Which muscle helps in breathing by expanding the chest cavity?

• Abdominals

• Pectoralis major

• Diaphragm

• Quadriceps

What is the main function of the deltoid muscle?

• Rotate the forearm

• Extend the wrist

• Flex the knee

• Abduct the arm at the shoulder joint

Which muscle is known as the 'smiling muscle'?

• zygomaticus major muscle

• frontalis muscle

• masseter muscle

• orbicularis oris muscle

What is the scientific name for the calf muscle?

• Soleus

• Gastrocnemius

• Tibialis anterior

• Quadriceps

Which muscle group is located on the back of the thigh?

• Quadriceps muscles

• Calf muscles

• Gluteus muscles

• Hamstring muscles

What is the function of the trapezius muscle?

• It regulates blood flow in the arms

• It assists in digestion

• It controls the movement of the knee joint

• It moves and stabilizes the shoulder blades and extends the head at the neck.

Which muscle is responsible for extending the leg at the knee?

• Adductor magnus muscle

• Hamstrings muscle

• Quadriceps femoris muscle

• Gastrocnemius muscle

What is the primary muscle used in chewing food?

• Quadriceps muscle

• Gluteus muscle

• Biceps muscle

• Masseter muscle