Questions with Actual Detailed Answers
2025-2026 Edition.
What is the purpose of the musculoskeletal system? - Answer offer support for standing erect
and for movement, encase and protect the inner vital organs, produce red blood cells, and
function as a reservoir for storage of essential minerals such as calcium and phosphorus in the
bones
Why is mobility important? - Answer mobility allows you to express emotion, maintain
activities of daily living, promote all physiological processes, and reap the physical and
emotional benefits of recreation
Compare nonsynovial vs synovial joints. - Answer Nonsynovial joints - when the bones are
united by fibrous tissue or cartilage and are immovable or only slightly movable
Synovial joints - freely movable because the bones are separated from each other and enclosed
in a joint cavity filled with synovial fluid (lubricant)
Muscles account for ______% of the body weight - Answer 40-50%
What are the 3 types of muscles? - Answer skeletal, smooth, cardiac
What is flexion? - Answer bending a limb at a joint
What is extension? - Answer straightening a limb at a joint
What is abduction? - Answer moving a limb away from the midline of the body
What is adduction? - Answer moving a limb toward the midline of the body
What is pronation? - Answer turning the forearm so that the palm is down
What is supination? - Answer turning the forearm so that the palm is up
, What is eversion? - Answer moving the sole of the foot outward at the ankle
What is rotation? - Answer moving the head around a central axis
What is protraction? - Answer moving a body part forward and parallel to the ground
What is retraction? - Answer moving a body part backward and parallel to the ground
What is elevation? - Answer raising a body part
What is depression? - Answer lowering a body part
What is a hinge joint? - Answer a joint that allows flexion and extension only
What 3 movements does the temporo-mandibular joint allow? - Answer hinge action to
open/close the jaw, protrusion/retraction, and side to side (lower jaw)
What 4 movements does the spine allow? - Answer flexion, extension, abduction, and rotation
What 2 movements does the elbow allow? - Answer flexion and extension
Of the body's 206 bones, more than half of them are in the... - Answer hands and feet
what 3 movements does the wrist allow? - Answer flexion, extension, and side-to-side
What 2 movements does the knee allow? - Answer flexion and extension
What type of joint is the ankle? - Answer a hinge joint
What 2 movements does the foot allow? - Answer inversion and eversion