Skeletal & Skin Quiz

What is one of the primary functions of the skeletal system?

• To produce heat

• To store minerals

• To digest food

• To circulate blood

Answer explanation

The primary function of the skeletal system is to store minerals, such as calcium and phosphorus, for the body's use.

Which type of bone is primarily involved in protecting internal organs?

• Long bones

• Short bones

• Flat bones

• Irregular bones

Answer explanation

Flat bones are primarily involved in protecting internal organs due to their broad and flat shape, providing a large surface area for protection.

What is the outer layer of a long bone called?

• Marrow

• Periosteum

• Endosteum

• Epiphysis

Answer explanation

The outer layer of a long bone is called the periosteum, which is a dense layer of vascular connective tissue that covers the bone surface.

Which joint allows for rotation and is found in the neck?

• Hinge joint

• Pivot joint

• Ball and socket joint

• Saddle joint

Answer explanation

The correct joint that allows for rotation and is found in the neck is the Pivot joint.

What is the top layer of the skin known as?

• Dermis

• Hypodermis

• Epidermis

• Subcutis

Answer explanation

The top layer of the skin is known as the Epidermis, which is the correct choice among the options provided.

Which of the following is NOT a function of the skeletal system?

• Providing support to the body

• Facilitating movement

• Producing blood cells

• Filtering blood

Answer explanation

The correct choice is 'Filtering blood' as it is not a function of the skeletal system. The skeletal system provides support, facilitates movement, and produces blood cells.

What type of bone is the femur classified as?

• Long bone

• Short bone

• Flat bone

• Irregular bone

Answer explanation

The femur is classified as a long bone due to its elongated shape and serves as a weight-bearing bone in the body.

What is found in the center of a long bone?

• Compact bone

• Spongy bone

• Bone marrow

• Periosteum

Answer explanation

The center of a long bone contains bone marrow, which is responsible for producing blood cells and storing fat.

Which type of joint is found in the knee?

• Hinge joint

• Pivot joint

• Ball and socket joint

• Saddle joint

Answer explanation

The knee joint is a hinge joint, allowing movement in one plane, similar to a door hinge.

What layer of the skin contains sweat glands?

• Epidermis

• Dermis

• Hypodermis

• Subcutis

Answer explanation

The correct layer of the skin that contains sweat glands is the Dermis.