Human Body Systems Test Review

Which sequence lists the levels of organization in the human body from simplest to most complex?

• organ system - tissue - cell - organ

• tissue - cell - organ - organ system

• organ - organ system - tissue - cell

• cell - tissue - organ - organ system

A group of specialized tissues that work together to perform a specific function is called a(n)...

• organism

• cell

• organ

• organ system

Your body has 11 major _____ that carry out the functions of your body.

• cells

• tissues

• organ systems

• organs

The diagram represents a magnified view of an air sac in the human lung. The white arrows indicate blood flow.

Which two systems are interacting in this diagram?

• skeletal and muscular

• nervous and endocrine

• reproductive and digestive

• respiratory and circulatory

Which of the human body systems function together to move and control body parts? Select all that apply.

• nervous

• muscular

• digestive

• skeletal

Running is an activity that causes the cells in the muscular system to use oxygen at a faster rate. Which system responds by delivering more oxygen to these cells?

• digestive

• nervous

• circulatory

• endocrine

The diagram shows a human arm bending at the elbow. Which two body systems most directly cause the arm to bend?

• skeletal and muscular

• reproductive and endocrine

• respiratory and excretory

• nervous and digestive

Which human body systems are directly involved in reflexes actions, such as knee jerk, blinking, and jumping when startled?

• circulatory

• respiratory

• nervous

• excretory

• muscular

The diagram shows a human body system.

What are two of the functions performed by this body system?

• protects and supports the body

• produces and transports oxygen

• produces and excretes waste

• controls and coordinates body activities

The main function of the human digestive system is to...

• break down foods for absorption into blood

• exchange oxygen and carbon dioxide in the lungs

• release energy from sugars within the cells

• carry nutrients to all parts of the body