DO DO Anatomy and Physiology

Question 1

Which muscle is the primary hip flexor and is most frequently implicated in lumbar somatic dysfunction?

Accepted Answer

Psoas major

Answer

Gluteus maximus

Answer

Piriformis

Answer

Quadratus lumborum

Question 2

The thoracic inlet is bounded posteriorly, laterally, and anteriorly by which structures?

Accepted Answer

T1 vertebra, first rib, manubrium

Answer

T4 vertebra, second rib, sternum body

Answer

T6 vertebra, third rib, xiphoid

Answer

T12 vertebra, twelfth rib, diaphragm

Question 3

Which nerve passes inferior to (or through) the piriformis and is compressed in piriformis syndrome?

Accepted Answer

Sciatic nerve

Answer

Femoral nerve

Answer

Obturator nerve

Answer

Ilioinguinal nerve

Question 4

The sacrotuberous and sacrospinous ligaments are clinically important in OMM because they perform which function?

Accepted Answer

Stabilize the sacroiliac joint and resist excessive sacral nutation

Answer

Support the knee joint capsule

Answer

Directly connect lumbar vertebrae to the femur

Answer

Form the posterior hip capsule

Question 5

The thoracolumbar fascia is significant in OMM because it connects which structures?

Accepted Answer

Thoracic/lumbar spine to pelvis, gluteal muscles, and upper extremity via latissimus dorsi

Answer

Only thoracic vertebrae to ribs

Answer

Cervical spine directly to sacrum

Answer

Abdominal muscles to the femur

Question 6

The dorsal horn of the spinal cord processes which types of afferent signals most relevant to somatic dysfunction?

Accepted Answer

Nociception and proprioception from musculoskeletal tissues

Answer

Motor commands only

Answer

Autonomic efferent commands

Answer

Endocrine regulatory signals