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 _______________________.