BIOL251: Human Anatomy & Physiology I w/Lab Module 4 – (Movements & Joints) | Portage Learning

ESTUDYR




BIOL251: Human Anatomy & Physiology I w/Lab

Module 4 – (Movements & Joints) | Portage Learning

Question 1

Which term describes movement away from the body’s midline?

A. Adduction
B. Flexion
C. Extension
D. ✅Abduction
E. Hyperextension

Rationale: Abduction specifically refers to movement away from the midline, such as lifting the
arms laterally.



Question 2

The opposite movement of retraction is elevation.

A. ✅False
B. True

Rationale: The opposite of retraction (posterior movement) is protraction (anterior movement),
not elevation.



Question 3

Which movements are permitted by a saddle joint, such as the thumb’s carpometacarpal joint?

A. Rotation only
B. Gliding only
C. Flexion and extension only
D. ✅Flexion, extension, abduction, and adduction

Rationale: Saddle joints allow biaxial movement but not true rotation.

, ESTUDYR




Question 4

Pointing the toes downward by extending the ankle joint is called:

A. Dorsiflexion
B. Opposition
C. Retraction
D. ✅Plantarflexion

Rationale: Plantarflexion increases the angle between the foot and shin, as when standing on
tiptoes.



Question 5

Damage to the atlantoaxial joint would most directly impair which neck movement?

A. Flexion and extension
B. Abduction and adduction
C. Gliding
D. ✅Rotation

Rationale: The atlantoaxial pivot joint allows rotational movement such as shaking the head
“no.”



Question 6

Which pairing of term and description is correct?

A. Depression – movement forward
B. Elevation – movement downward
C. Protraction – backward movement
D. ✅Reposition – return from opposition

Rationale: Reposition reverses opposition, returning the thumb to anatomical position.



Question 7

Which movements are possible at a ball-and-socket joint? (Select all that apply)