Introduction to Human Body Systems

What is the study of the functions of living organisms and their parts called?

What is anatomy?

What is the simplest level of organization within the body?

Atoms are the largest units of matter.

What is the smallest structural unit that exhibits the characteristics of living things?

Tissues are groups of similar cells with a common function.

What are different tissue types that work together to perform specific, complex functions called?

What are groups of organs that function together to perform a specific, complex function called?

How many systems does the human body consist of?

What is the system that breaks down food and absorbs its nutrients called?

The digestive tract is a short system of tubes that run from the mouth to the anus.

Which of the following organs is NOT included in the digestive system?

What two organs manufacture special enzymes to help break down food?

What is the name of the system that provides the body with movement?

Which of the following are the three types of muscle in the human body?

Skeletal muscles attach to bones and are voluntary.

Cardiac muscle is involuntary, meaning we can control when and how it contracts.

What type of muscle is also involuntary and causes movement in other organs?

What system includes skin?

The integumentary system does NOT have any accessory structures.

What is the system that gets rid of various body wastes and maintains the fluid and electrolytes balance in the body called?

Which of the following are NOT organs of the excretory system?

What is the system that allows for the continuation of life, by combining the male's sperm and the female's egg to form a zygote?

What system consists of a pump that moves blood through blood vessels in order to distribute hormones, nutrients, gases, and pick up waste products?

What system provides the body with oxygen and expels carbon dioxide from the body?

The respiratory system does NOT involve the nasal passage, trachea, bronchial tubes, lungs, and alveoli.

What system provides structure for the body, attachment of the muscles, and protection for the body's internal organs?

What system defends people against germs and microorganisms every day?

The brain, spinal cord, and nerves work together to coordinate the body's actions.

Our senses are NOT part of the nervous system.

What system is made up of the chemical messengers which control many bodily activities called hormones?