Question 1

Which of the following best explains the stability vs. mobility trade-off in synovial joints?

Accepted Answer

Increased mobility always results in decreased stability, and vice versa.

Question 2

A patient presents with pain and swelling in the elbow after repetitive movement. The physician suspects tendinitis. Which treatment principle is most appropriate based on the study materials?

Accepted Answer

Reduce joint/muscle use to alleviate pain.

Question 3

Which joint type allows for rotation only around a single axis, such as the C1/C2 vertebrae?

Accepted Answer

Pivot joint

Question 4

During a soccer game, a player uses the inside of their foot to control the ball. Which movement is primarily involved?

Accepted Answer

Inversion

Question 5

Which anatomical feature is used to distinguish the anterior from the posterior surface of the os coxae?

Accepted Answer

Greater sciatic notch (always posterior)

Question 6

A patient is unable to perform abduction of the arm. Which movement definition best describes abduction?

Accepted Answer

Movement away from the midline

Question 7

Which of the following is a key difference between the pelvic girdle and the pectoral girdle?

Accepted Answer

The pelvic girdle is formed by three fused bones (ilium, pubis, ischium).

Question 8

Which ligament creates the greater sciatic foramen in the pelvis?

Accepted Answer

Sacrospinous ligament

Question 9

A female pelvis is being examined for childbirth suitability. Which feature is most indicative of a female pelvis?

Accepted Answer

Posteriorly displaced coccyx and rounded pubic arch (\u003e90\degree)

Question 10

Which movement occurs when the palm faces forward/anterior at the elbow joint?

Accepted Answer

Supination

Question 11

If a patient is unable to elevate their shoulder, which muscle action is impaired?

Accepted Answer

Shrugging up

Question 12

Which bone in the lower limb is equivalent to the radius in the upper limb?

Accepted Answer

Tibia

Question 13

A patient with hypermobile joints is found to have fewer ligaments than average. According to the study materials, what is the relationship between ligament number and joint mobility?

Accepted Answer

Fewer ligaments = increased range of motion

Question 14

Which joint type allows for flexion/extension and abduction/adduction, such as the thumb?

Accepted Answer

Saddle joint

Question 15

A patient is unable to point their toes upward. Which movement is impaired?

Accepted Answer

Dorsiflexion

Question 16

Which anatomical landmark is most superior and anterior on the os coxae?

Accepted Answer

Anterior Superior Iliac Spine (ASIS)

Question 17

Which equation best represents the inverse relationship between stability and mobility in joints?

Accepted Answer

$$Stability \propto \frac{1}{Mobility}$$

Question 18

A patient with a fractured clavicle is unable to stabilize their shoulder. Which joint is most affected by this injury?

Accepted Answer

Acromioclavicular joint

Question 19

Which of the following is NOT a function of muscle tone in synovial joints?

Accepted Answer

Can be modified in patients to increase ligament number

Question 20

A patient is unable to move their jaw forward. Which movement is impaired?

Accepted Answer

Protraction

Anatomy & Physiology Study Notes: Joints, Skeleton, and Movement

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