Human Body Quiz

What is the name of the bone in the body that protects the brain?

• cranium

• ribcage

• femur

• vertebrae

Answer explanation

The bone in the body that protects the brain is called the cranium, which surrounds and encases the brain to provide protection.

Which muscle is responsible for pumping blood throughout the body?

• Lungs

• Heart

• Stomach

• Brain

Answer explanation

The muscle responsible for pumping blood throughout the body is the Heart.

What are the three types of muscles in the body and what do they mean?

• Muscular muscles, flexible muscles, and strong muscles.

• Bicep muscles, tricep muscles, and quadricep muscles.

• Skeletal muscles, smooth muscles, and cardiac muscles.

• Voluntary muscles, involuntary muscles, and heart muscles.

Answer explanation

The correct answer is skeletal muscles, smooth muscles, and cardiac muscles, which are the three types of muscles in the body. Skeletal muscles are attached to bones, smooth muscles are found in organs, and cardiac muscles are specific to the heart.

What is the main function of skeletal muscles?

• Generate heat

• Store nutrients

• Enable movement

• Support blood circulation

Answer explanation

The main function of skeletal muscles is to enable movement.

Name the movement when a muscle contracts and shortens.

• Eccentric movement

• Concentric movement

• Isotonic movement

• Isometric movement

Answer explanation

Concentric movement refers to the muscle contracting and shortening, which is the correct choice in this case.

Which bone is the longest bone in the human body?

• humerus

• tibia

• radius

• femur

Answer explanation

The femur is the longest bone in the human body, located in the thigh. It is stronger than concrete and crucial for supporting body weight.

Which muscle helps in breathing?

• Pectoralis Major

• Quadriceps

• Biceps

• Diaphragm

Answer explanation

The diaphragm muscle helps in breathing by contracting and expanding the chest cavity, allowing air to enter and exit the lungs.

Explain the difference between voluntary and involuntary muscles.

• Voluntary muscles are controlled by the autonomic nervous system, while involuntary muscles are controlled by the somatic nervous system.

• Voluntary muscles are only found in the arms, while involuntary muscles are only found in the legs.

• Voluntary muscles are under conscious control, while involuntary muscles are not.

• Voluntary muscles are always smooth, while involuntary muscles are always striated.

Answer explanation

Voluntary muscles are under conscious control, while involuntary muscles are not.

What is the function of smooth muscles in the body?

• To regulate blood sugar levels

• To support voluntary movements

• To aid in digestion

• To control involuntary movements in the body

Answer explanation

Smooth muscles function to control involuntary movements in the body, such as the movement of food through the digestive system or blood flow in blood vessels.

Name the bone that forms the upper part of the human arm.

• tibia

• humerus

• femur

• radius

Answer explanation

The bone that forms the upper part of the human arm is called the humerus, making it the correct choice among the options provided.