Kinesiology Flashcards
7 cards from real Massage Therapist practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Kinesiology flashcards as text
Which muscle group is responsible for lateral flexion of the trunk?
Answer: Quadratus lumborum
The quadratus lumborum is a primary lateral flexor of the trunk, also assisting in hip elevation and lumbar extension.
What type of lever system is most common in the human body?
Answer: Third-class lever
Third-class levers are most common in the body; the effort (muscle) is between the fulcrum (joint) and the load, producing speed and range of motion.
Scapular upward rotation is primarily produced by which muscles working together?
Answer: Serratus anterior and upper/lower trapezius
Upward rotation of the scapula is produced by a force couple between the serratus anterior and the upper and lower fibers of the trapezius.
Which term describes a movement that decreases the joint angle between two bones?
Answer: Flexion
Flexion decreases the angle between bones at a joint, such as bending the elbow or knee.
The pectoralis major performs which action at the glenohumeral joint?
Answer: Shoulder horizontal adduction and medial rotation
The pectoralis major performs horizontal adduction and medial (internal) rotation of the humerus at the glenohumeral joint.
Which muscle is the primary wrist extensor on the radial side of the forearm?
Answer: Extensor carpi radialis longus
The extensor carpi radialis longus is a primary wrist extensor located on the radial (lateral) side of the forearm.
During normal gait, which muscle group acts eccentrically to control the rate of knee flexion at initial contact?
Answer: Quadriceps
The quadriceps contract eccentrically at initial contact to control the rate of knee flexion and absorb ground reaction forces.