Skeletal System
Rigid connective tissue that makes up the adult skeleton and stores calcium.
What is bone
type of joint is the knee
Hinge joint
type of muscle is voluntary
Skeletal muscle
What is a fracture?
A break in a bone
What does “mean” refer to?
Average
The long central shaft of a long bone.
What is the diaphysis
movement decreases the angle at a joint
Flexion
basic functional unit of a muscle
Sarcomere
What type of injury is a sprain?
Ligament injury
What is the range of a data set?
Difference between highest and lowest values
Porous bone tissue found at the ends of long bones.
What is cancellous (spongy) bone?
type of joint allows the greatest range of motion
Ball-and-socket join
What happens to a muscle when it contracts?
It shortens
What is one symptom of inflammation?
Swelling, redness, heat, or pain
Why are graphs used in data presentation?
To make data easier to understand
The membrane that lines the inner surface of the medullary cavity and is involved in bone growth and repair.
What is the endosteum?
Connect bone to bone and stabilize joints
ligaments
What is the role of ATP in muscle contraction?
Provides energy for contraction
What is the purpose of compression in injury treatment?
Reduce swelling
What is an independent variable?
The variable that is changed
cells are responsible for bone resorption?
Osteoclasts
difference between agonist and antagonist muscles during movement
Agonist produces movement; antagonist opposes it
Why do muscles fatigue during exercise? (give one reason)
Energy depletion / lactic acid buildup / lack of oxygen
Why is it important to warm up before exercise?
Reduces risk of injury by preparing muscles and joints
Why is it important to repeat an experiment?
Improves reliability of results