STOTT Pilates Anatomy Study Guide & Practice Test |
Written Anatomy Exam Prep | Pilates Instructor
Certification | Muscles, Bones, Joints, Anatomical
Planes, Movement, Posture, Biomechanics, Spinal
Alignment, Muscle Actions & Detailed Rationales
Question 1: Which anatomical plane divides the body into equal left and right
halves?
A. Frontal plane
B. Transverse plane
C. Midsagittal plane
D. Coronal plane
E. Oblique plane
CORRECT ANSWER: C. Midsagittal plane
Rationale: The midsagittal (median) plane passes vertically through the midline of
the body, dividing it into equal right and left halves. The frontal/coronal plane
divides the body into anterior and posterior portions, while the transverse plane
divides it into superior and inferior portions.
Question 2: Which type of synovial joint permits motion in only one plane, such
as flexion and extension?
A. Ball-and-socket joint
B. Saddle joint
C. Hinge joint
D. Pivot joint
E. Condyloid joint
CORRECT ANSWER: C. Hinge joint
Rationale: A hinge joint is uniaxial, allowing movement in only one plane—
typically flexion and extension. Examples include the elbow and knee joints. Ball-
and-socket joints are multiaxial, while pivot joints allow rotation around a single
axis.
Question 3: The thoracic spine consists of how many vertebrae?
,A. 5
B. 7
C. 10
D. 12
E. 14
CORRECT ANSWER: D. 12
Rationale: The thoracic spine comprises twelve vertebrae (T1–T12), each
articulating with a pair of ribs. The cervical spine has seven vertebrae, and the
lumbar spine has five.
Question 4: Which bony landmark is formed by the fusion of the ilium, ischium,
and pubis?
A. Greater trochanter
B. Acetabulum
C. Glenoid fossa
D. Ischial tuberosity
E. Obturator foramen
CORRECT ANSWER: B. Acetabulum
Rationale: The acetabulum is the cup-shaped socket of the hip joint, formed by
the fusion of all three pelvic bones: the ilium, ischium, and pubis. The greater
trochanter is a femoral landmark, and the glenoid fossa is part of the scapula.
Question 5: Which muscle is the primary hip flexor?
A. Gluteus maximus
B. Biceps femoris
C. Iliopsoas
D. Adductor magnus
E. Semitendinosus
CORRECT ANSWER: C. Iliopsoas
Rationale: The iliopsoas, composed of the psoas major and iliacus, is the primary
hip flexor. The gluteus maximus and hamstrings are hip extensors, while the
adductor magnus primarily adducts the hip.
,Question 6: What is the primary action of the transversus abdominis?
A. Trunk flexion
B. Trunk rotation
C. Lateral trunk flexion
D. Core stabilization
E. Spinal extension
CORRECT ANSWER: D. Core stabilization
Rationale: The transversus abdominis is the deepest abdominal muscle, wrapping
horizontally around the torso like a corset. Its primary role is core stabilization,
not producing trunk movement.
Question 7: Which structure forms the outer ring of an intervertebral disc?
A. Nucleus pulposus
B. Annulus fibrosus
C. Ligamentum flavum
D. Supraspinous ligament
E. Posterior longitudinal ligament
CORRECT ANSWER: B. Annulus fibrosus
Rationale: The annulus fibrosus is the tough, fibrous outer ring of the
intervertebral disc that encapsulates the gel-like nucleus pulposus. It provides
structural integrity and limits excessive motion.
Question 8: The glenohumeral joint is classified as which type of joint?
A. Hinge
B. Pivot
C. Ball-and-socket
D. Saddle
E. Plane
CORRECT ANSWER: C. Ball-and-socket
Rationale: The glenohumeral (shoulder) joint is a ball-and-socket joint, allowing
flexion, extension, abduction, adduction, rotation, and circumduction. Its wide
range of motion trades off stability.
, Question 9: Which muscle originates from the thoracolumbar fascia?
A. Pectoralis major
B. Latissimus dorsi
C. Deltoid
D. Serratus anterior
E. Trapezius
CORRECT ANSWER: B. Latissimus dorsi
Rationale: The latissimus dorsi originates from the thoracolumbar fascia, spinous
processes of T7–L5, and the posterior iliac crest. It is a powerful extensor,
adductor, and medial rotator of the arm.
Question 10: Which spinal curvature is present at birth?
A. Cervical lordosis
B. Lumbar lordosis
C. Thoracic kyphosis
D. Secondary curves
E. Scoliosis
CORRECT ANSWER: C. Thoracic kyphosis
Rationale: Primary curves—thoracic kyphosis and sacral kyphosis—are present at
birth. Secondary curves (cervical and lumbar lordosis) develop later as the infant
lifts its head and begins to walk.
Question 11: Which muscle is responsible for scapular protraction?
A. Rhomboids
B. Serratus anterior
C. Middle trapezius
D. Levator scapulae
E. Latissimus dorsi
CORRECT ANSWER: B. Serratus anterior
Rationale: The serratus anterior wraps around the rib cage and attaches to the
medial border of the scapula, pulling it forward (protraction). The rhomboids and
middle trapezius retract the scapula.