2026 QUESTIONS WITH SOLUTIONS
GRADED A+
●● Lever. Answer: A rigid structure such as a board, a crowbar, or a
bone, that moves on a fixed point called the fulcrum.
●● 1st class lever. Answer: fulcrum in the middle; see-saw, scissors; rare
Ex: hold head upright
●● 2nd class lever. Answer: Output force is between input force and
fulcrum ex: wheelbarrow Ex: plantar flexion/stand on tip toe
●● 3rd class lever. Answer: range of motion; shovel; the most common
Ex: elbow flexion
●● Fulcrum. Answer: The fixed point around which a lever pivots; joints
act as fulcrums in our bodies
●● Force. Answer: a pull exerted by a muscle to do work
●● Levers can increase which factors?. Answer: speed, range of motion,
strength
, ●● Synergist. Answer: A muscle that helps a larger agonist perform its
actions more efficiently. (ex: biceps brachii helps brachialis perform
elbow flexion)
●● Agonist. Answer: Prime mover - a muscle that is responsible for a
specific movement. (ex: brachialis is prime mover for elbow flexion)
●● Antagonist. Answer: Muscles that oppose or reverse a particular
movement (ex: triceps brachii opposes elbow flexion)
●● Fixator. Answer: Muscle that immobilizes a bone to provide a stable
base for the prime mover to act.
●● location. Answer: some muscle names like pectoralis, abdominal,
and frontal are based on ___________
●● shape. Answer: muscles like deltoid, rhomboid, and soleus are
named by _______________
●● size. Answer: _________ is indicated by names like maximus,
minimus, and longus
●● straight. Answer: rectus fibers always run _____________