YMCA Anatomy & Kinesiology 3

Question 1

The lumbar spine's primary movement plane is:

Accepted Answer

Flexion and extension

Answer

The lumbar spine's facet joint orientation primarily allows flexion and extension, with very limited rotation.

Question 2

Which structure connects muscle to bone?

Accepted Answer

Tendon

Answer

Tendons are dense connective tissue structures that attach muscle to bone and transmit muscular forces.

Question 3

The thoracic spine has how many vertebrae?

Accepted Answer

12

Answer

The thoracic spine consists of 12 vertebrae (T1–T12), each articulating with a pair of ribs.

Question 4

Which action does the iliopsoas primarily perform?

Accepted Answer

Hip flexion

Answer

The iliopsoas is the primary hip flexor, connecting the lumbar spine and ilium to the lesser trochanter of the femur.

Question 5

What is the name of the cartilage pad found between each vertebra?

Accepted Answer

Intervertebral disc

Answer

Intervertebral discs act as shock absorbers between vertebrae, consisting of a tough outer annulus fibrosus and a gel-like nucleus pulposus.

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