| A | B |
|---|
| Which joint allows you to move your arm around freely in a circular direction? | ball-and-socket joint |
| Which tissue in the skeletal system cushions the area where two bones meet? | cartilage |
| As blood flows to the heart from the toes and fingers, it travels mainly through tissue called what? | veins |
| In which vessels are materials exchanged between the blood and the body cells? | capillaries |
| One of the main purposes of the human circulatory system is to take oxygen to all the cells in the body. Which of the following parts of whole blood makes this possible? | red blood cells |
| Redness and swelling may develop in an area near a wound. This reaction by the body means that white cells are being carried to that area by which of systems? | circulatory |
| The heart is made of muscle and has four chambers, two on each side. The left side contains mostly what kind of blood? | blood with oxygen |
| What are the main functions of blood? | carry oxygen, nutrients, and wastes; and fight disease |
| What are the vessels that carry blood away from the heart? | arteries |
| What is the function of the heart? | to pump blood |
| What is the function of the white blood cells? | fight disease |
| Which component of blood carries oxygen to the body cells? | red blood cells |
| The birth of a baby indicates that a fertilized egg developed in which of these structures? | uterus |
| The reproductive system allows for the production of offspring and the continuation of life. What is true of sexual reproduction that brings together genetic material from two parents? | There is greater variation among animals that reproduce sexually. |
| Through which process is a mature egg released from the ovary? | ovulation |
