AFAA Group Fitness Instructor Test Solved
100% Correct
Interrelation of nervous, muscular, and skeletal systems to create movement -
ANSWER-Kinetic chain
brain and spinal cord, coordinates activity of body parts - ANSWER-Central nervous
system
all nerves branching off spinal cord, extending out to the body - ANSWER-Peripheral
nervous system
sense distortion in body tissues - ANSWER-mechanoreceptors
mechanoreceptor that senses changes in tension - ANSWER-Golgi tendon organs
mechanoreceptor that senses changes in length - ANSWER-muscle spindles
cumulative sensory input to the CNS from all mechanoreceptors - ANSWER-
proprioception
connect muscle to bone, anchor to produce force, limited blood flow, slow to repair
- ANSWER-tendons
individual contractile units, actin and myosin filaments - ANSWER-sarcomeres
slow twitch - more aerobic, slower to reach maximal contraction, resistant to
fatigue - ANSWER-type I muscles
more anaerobic, produce more speed and strength, faster to fatigue - ANSWER-
type ii muscles
extensibility, elasticity, irritability, ability to develop tension - ANSWER-behavioral
properties of muscles
stabilization muscles - core - ANSWER-transverse abdominus
stabilization - core - ANSWER-multifidus
stabilization - core - ANSWER-internal obliques
stabilization - core - ANSWER-diaphragm
stabilization - core - ANSWER-pelvic floor muscles
,stabilization - core - ANSWER-external obliques
stabilization - core - ANSWER-quadrates lumborum
stabilization - core - ANSWER-psoas major
stabilization - core - ANSWER-rectus abdominis
stabilization - core - ANSWER-gluteus medius
stabilization - core - ANSWER-adductor complex
movement - core - ANSWER-latissimus dorsi
movement - core - ANSWER-hip flexors
movement - core - ANSWER-hamstring complex
movement - core - ANSWER-quadriceps
movement - core - ANSWER-pectoralis major
movement - core - ANSWER-deltoids
movement - core - ANSWER-gluteus maximus
movement- core - ANSWER-triceps
movement - core - ANSWER-biceps
movement - core - ANSWER-erector spine
rectus femoris, vastus lateralis, medialis, and intermedius; knee extension; squat -
ANSWER-quadriceps: parts, function, and exercise
semitendinosus, semaimembranosous, biceps femoris; knee flexion, hamstrings
curl - ANSWER-hamstrings: parts, function, and exercise
plantar flexion, calf raise - ANSWER-gastrocnemius: function and exercise
hip extension and external rotation, lunge (upward phase) - ANSWER-gluteus
maximus: function and exercise
spinal flexion, lateral flexion, and rotation; ball crunch - ANSWER-rectus abdominis:
function and exercise
shoulder flexion and horizontal adduction; push up - ANSWER-pectoralis major:
, function and exercise
shoulder extension, adduction, and internal rotation; band row - ANSWER-
latissimus dorsi: function and exercise
elbow flexion, biceps curl - ANSWER-biceps: function and exercise
elbow extension; triceps extension - ANSWER-triceps: function and exercise
connect bone to bone, limited blood flow, slow to repair - ANSWER-ligaments
skull, rib cage, and vertebral column - ANSWER-axial skeleton
bones of upper and lower extremities - ANSWER-appendicular skeleton
movement, support, protection, blood production, mineral storage - ANSWER-
skeletal system functions
no joint cavity or connective tissue, little to no movement (e.g., sutures of the
skull) - ANSWER-non-synovial joint
produces synovial fluid, has joint cavity and connective tissue (gliding, condyloid,
hinge, saddle, pivot, ball-and-socket) - ANSWER-synovial joint
synovial; no axis of rotation, slides side-to-side, back and forth (e.g., carpals of the
hand) - ANSWER-gliding joint
synovial; condyles of one bone fit elliptical cavities of another, one plane of motion
(e.g., knee) - ANSWER-condyloid joint
synovial; uniaxial; one plane of motion (e.g., elbow) - ANSWER-hinge joint
synovial; one bone fits like a saddle on another; two planes of motion (sagittal,
frontal) (thumbs are only ones in body) - ANSWER-saddle joint
synovial; one axis, transverse plane movement (e.g., radioulnar) - ANSWER-pivot
joint
synovial; most mobile, all three planes of motion (e.g., shoulder) - ANSWER-ball-
and-socket
lumbar - L1-L5
thoracic - T1-T12
cervical - C1-C7 - ANSWER-vertebrae
reduces bone mass loss and increases bone mineral density - ANSWER-Exercise's
effect on bones
100% Correct
Interrelation of nervous, muscular, and skeletal systems to create movement -
ANSWER-Kinetic chain
brain and spinal cord, coordinates activity of body parts - ANSWER-Central nervous
system
all nerves branching off spinal cord, extending out to the body - ANSWER-Peripheral
nervous system
sense distortion in body tissues - ANSWER-mechanoreceptors
mechanoreceptor that senses changes in tension - ANSWER-Golgi tendon organs
mechanoreceptor that senses changes in length - ANSWER-muscle spindles
cumulative sensory input to the CNS from all mechanoreceptors - ANSWER-
proprioception
connect muscle to bone, anchor to produce force, limited blood flow, slow to repair
- ANSWER-tendons
individual contractile units, actin and myosin filaments - ANSWER-sarcomeres
slow twitch - more aerobic, slower to reach maximal contraction, resistant to
fatigue - ANSWER-type I muscles
more anaerobic, produce more speed and strength, faster to fatigue - ANSWER-
type ii muscles
extensibility, elasticity, irritability, ability to develop tension - ANSWER-behavioral
properties of muscles
stabilization muscles - core - ANSWER-transverse abdominus
stabilization - core - ANSWER-multifidus
stabilization - core - ANSWER-internal obliques
stabilization - core - ANSWER-diaphragm
stabilization - core - ANSWER-pelvic floor muscles
,stabilization - core - ANSWER-external obliques
stabilization - core - ANSWER-quadrates lumborum
stabilization - core - ANSWER-psoas major
stabilization - core - ANSWER-rectus abdominis
stabilization - core - ANSWER-gluteus medius
stabilization - core - ANSWER-adductor complex
movement - core - ANSWER-latissimus dorsi
movement - core - ANSWER-hip flexors
movement - core - ANSWER-hamstring complex
movement - core - ANSWER-quadriceps
movement - core - ANSWER-pectoralis major
movement - core - ANSWER-deltoids
movement - core - ANSWER-gluteus maximus
movement- core - ANSWER-triceps
movement - core - ANSWER-biceps
movement - core - ANSWER-erector spine
rectus femoris, vastus lateralis, medialis, and intermedius; knee extension; squat -
ANSWER-quadriceps: parts, function, and exercise
semitendinosus, semaimembranosous, biceps femoris; knee flexion, hamstrings
curl - ANSWER-hamstrings: parts, function, and exercise
plantar flexion, calf raise - ANSWER-gastrocnemius: function and exercise
hip extension and external rotation, lunge (upward phase) - ANSWER-gluteus
maximus: function and exercise
spinal flexion, lateral flexion, and rotation; ball crunch - ANSWER-rectus abdominis:
function and exercise
shoulder flexion and horizontal adduction; push up - ANSWER-pectoralis major:
, function and exercise
shoulder extension, adduction, and internal rotation; band row - ANSWER-
latissimus dorsi: function and exercise
elbow flexion, biceps curl - ANSWER-biceps: function and exercise
elbow extension; triceps extension - ANSWER-triceps: function and exercise
connect bone to bone, limited blood flow, slow to repair - ANSWER-ligaments
skull, rib cage, and vertebral column - ANSWER-axial skeleton
bones of upper and lower extremities - ANSWER-appendicular skeleton
movement, support, protection, blood production, mineral storage - ANSWER-
skeletal system functions
no joint cavity or connective tissue, little to no movement (e.g., sutures of the
skull) - ANSWER-non-synovial joint
produces synovial fluid, has joint cavity and connective tissue (gliding, condyloid,
hinge, saddle, pivot, ball-and-socket) - ANSWER-synovial joint
synovial; no axis of rotation, slides side-to-side, back and forth (e.g., carpals of the
hand) - ANSWER-gliding joint
synovial; condyles of one bone fit elliptical cavities of another, one plane of motion
(e.g., knee) - ANSWER-condyloid joint
synovial; uniaxial; one plane of motion (e.g., elbow) - ANSWER-hinge joint
synovial; one bone fits like a saddle on another; two planes of motion (sagittal,
frontal) (thumbs are only ones in body) - ANSWER-saddle joint
synovial; one axis, transverse plane movement (e.g., radioulnar) - ANSWER-pivot
joint
synovial; most mobile, all three planes of motion (e.g., shoulder) - ANSWER-ball-
and-socket
lumbar - L1-L5
thoracic - T1-T12
cervical - C1-C7 - ANSWER-vertebrae
reduces bone mass loss and increases bone mineral density - ANSWER-Exercise's
effect on bones
