Front

Which type of muscle is found only in the heart?

Back

Cardiac muscle is the type of muscle found only in the heart. It is involuntary and striated.

Front

The bones that form the backbone (or spine) are called ________.

Back

The bones that form the backbone are called vertebrae.

Front

What type of joint allows for bending and straightening, like in the elbow?

Back

A hinge joint allows for bending and straightening.

Front

What is the name for the structure in the heart that prevents backflow of blood?

Back

The structure that prevents backflow of blood in the heart is called a valve.

Front

In what part of the digestive system does most chemical digestion take place?

Back

Most chemical digestion takes place in the small intestines.

Front

What is the primary function of the aorta?

Back

The aorta's primary function is to carry oxygenated blood from the heart to the rest of the body.

Front

What type of joint allows for rotation, like in the neck?

Back

A pivot joint allows for rotation.

Front

What is the role of the right atrium in the heart?

Back

The right atrium receives deoxygenated blood from the body and sends it to the right ventricle.

Front

What is the function of smooth muscle?

Back

Smooth muscle controls involuntary movements in organs such as the stomach and intestines.

Front

What are the main components of the skeletal system?

Back

The main components of the skeletal system are bones, cartilage, ligaments, and joints.