Abeka Order & Design quiz 9

sinuses

What are the hollow spaces in bones that help lighten the skull?

vertebra

What is any of the individual bones of which the backbone is composed?

origin

What is one end of a muscle anchored to a relatively immovable point?

sternum

What is the breastbone?

mandible

What is the lower jawbone?

marrow

What is the soft tissue in the center of long bones that produces new blood cells?

tendons

What tough cords connect muscles to bones?

ball-and-socket joint

What type of joint is found in the shoulder and hip?

involuntary

Because the muscles in organs like the heart and digestive organs must function whether you think about them or not, they are considered __________________ muscles.

ligaments

The bones in a joint are connected by cords called _______________________.