AFAA-GFI Certification Exam Questions and
Answers Graded A+ 2026
kinetic chain -Correct Answer ✔-interrelation of nervous, muscular & skeletal systems
central nervous system -Correct Answer ✔-includes brain & spinal cord, coordinates
activity of body parts
peripheral nervous system -Correct Answer ✔-includes all nerves branching from spinal
cord, extending out to the body
mechanoreceptors -Correct Answer ✔-sense distortion in body tissues
Golgi tendon organs -Correct Answer ✔-sensitive to changes in tension
muscle spindles -Correct Answer ✔-sensitive to changes in length
proprioception -Correct Answer ✔-cumulative sensory input to the CNS from all
mechanoreceptors
tendons -Correct Answer ✔-connect muscle to bone
ligaments -Correct Answer ✔-connect bone to bone
sarcomeres -Correct Answer ✔-individual contractile units; actin & myosin filaments
type I muscle tissue -Correct Answer ✔-slow twitch, more aerobic, resistant to fatigue
type II muscle tissue -Correct Answer ✔-fast twitch, more anaerobic, produce more
speed & strength; faster to fatigue
behavioral properties of muscle -Correct Answer ✔-extensibility, elasticity, irritability,
ability to develop tension
what is the isolated function (concentric action) of the quadriceps -Correct Answer ✔-
knee extension; ex. upward phase of a squat
what is the isolated function (concentric action) of the hamstrings -Correct Answer ✔-
knee flexion; ex. hamstring curl
what is the isolated function (concentric action) of the gastrocnemius -Correct Answer
✔-plantar flexion; ex. calf raise
, what is the isolated function (concentric action) of the gluteus maximus -Correct Answer
✔-hip extension & external rotation; ex. upward phase of lunge
what is the isolated function (concentric action) of the rectus abdominus -Correct
Answer ✔-spinal flexion, lateral flexion & rotation; ex. ball crunch
what is the isolated function (concentric action) of the pectoralis major -Correct Answer
✔-shoulder flexion & horizontal adduction; ex. push up
what is the isolated function (concentric action) of the latissimus dorsi -Correct Answer
✔-shoulder extension, adduction & internal rotation; ex. band row
what is the isolated function (concentric action) of the biceps -Correct Answer ✔-elbow
flexion; ex. bicep curl
what is the isolated function (concentric action) of the triceps -Correct Answer ✔-elbow
extension; ex. triceps extension
axial skeleton -Correct Answer ✔-skull, rib cage & vertebral column
appendicular skeleton -Correct Answer ✔-bones of the upper & lower extremities
what are the skeletal system function -Correct Answer ✔-movement, support,
protection, blood production, mineral storage
non-synovial joint -Correct Answer ✔-no joint cavity or connective tissue; little to no
movement; ex. sutures of the skull
synovial joint -Correct Answer ✔-produces synovial fluid; has joint cavity & connective
tissue
gliding joint -Correct Answer ✔-no axis of rotation; slides side to side, back & forth; ex.
carpals of the hand
condyloid joint -Correct Answer ✔-condyles of one bone fit elliptical cavities of another;
one plane of motion; ex. knee
hinge joint -Correct Answer ✔-uniaxial; one plane of motion; ex elbow
saddle joint -Correct Answer ✔-one bone fits like a saddle on another; 2 planes of
motion (sagittal & frontal); ex. thumb
pivot joint -Correct Answer ✔-one axis; transverse plane movement
Answers Graded A+ 2026
kinetic chain -Correct Answer ✔-interrelation of nervous, muscular & skeletal systems
central nervous system -Correct Answer ✔-includes brain & spinal cord, coordinates
activity of body parts
peripheral nervous system -Correct Answer ✔-includes all nerves branching from spinal
cord, extending out to the body
mechanoreceptors -Correct Answer ✔-sense distortion in body tissues
Golgi tendon organs -Correct Answer ✔-sensitive to changes in tension
muscle spindles -Correct Answer ✔-sensitive to changes in length
proprioception -Correct Answer ✔-cumulative sensory input to the CNS from all
mechanoreceptors
tendons -Correct Answer ✔-connect muscle to bone
ligaments -Correct Answer ✔-connect bone to bone
sarcomeres -Correct Answer ✔-individual contractile units; actin & myosin filaments
type I muscle tissue -Correct Answer ✔-slow twitch, more aerobic, resistant to fatigue
type II muscle tissue -Correct Answer ✔-fast twitch, more anaerobic, produce more
speed & strength; faster to fatigue
behavioral properties of muscle -Correct Answer ✔-extensibility, elasticity, irritability,
ability to develop tension
what is the isolated function (concentric action) of the quadriceps -Correct Answer ✔-
knee extension; ex. upward phase of a squat
what is the isolated function (concentric action) of the hamstrings -Correct Answer ✔-
knee flexion; ex. hamstring curl
what is the isolated function (concentric action) of the gastrocnemius -Correct Answer
✔-plantar flexion; ex. calf raise
, what is the isolated function (concentric action) of the gluteus maximus -Correct Answer
✔-hip extension & external rotation; ex. upward phase of lunge
what is the isolated function (concentric action) of the rectus abdominus -Correct
Answer ✔-spinal flexion, lateral flexion & rotation; ex. ball crunch
what is the isolated function (concentric action) of the pectoralis major -Correct Answer
✔-shoulder flexion & horizontal adduction; ex. push up
what is the isolated function (concentric action) of the latissimus dorsi -Correct Answer
✔-shoulder extension, adduction & internal rotation; ex. band row
what is the isolated function (concentric action) of the biceps -Correct Answer ✔-elbow
flexion; ex. bicep curl
what is the isolated function (concentric action) of the triceps -Correct Answer ✔-elbow
extension; ex. triceps extension
axial skeleton -Correct Answer ✔-skull, rib cage & vertebral column
appendicular skeleton -Correct Answer ✔-bones of the upper & lower extremities
what are the skeletal system function -Correct Answer ✔-movement, support,
protection, blood production, mineral storage
non-synovial joint -Correct Answer ✔-no joint cavity or connective tissue; little to no
movement; ex. sutures of the skull
synovial joint -Correct Answer ✔-produces synovial fluid; has joint cavity & connective
tissue
gliding joint -Correct Answer ✔-no axis of rotation; slides side to side, back & forth; ex.
carpals of the hand
condyloid joint -Correct Answer ✔-condyles of one bone fit elliptical cavities of another;
one plane of motion; ex. knee
hinge joint -Correct Answer ✔-uniaxial; one plane of motion; ex elbow
saddle joint -Correct Answer ✔-one bone fits like a saddle on another; 2 planes of
motion (sagittal & frontal); ex. thumb
pivot joint -Correct Answer ✔-one axis; transverse plane movement
