Musculoskeletal system

Question 1

Define articulation

Answer 1

The moving bones in a joint

Question 2

Example of arm extension

Answer 2

Tricep extension

Question 3

Example of arm flexion

Answer 3

Bicep curl

Question 4

Ball and socket joint

Answer 4

Allows movement in every direction.

Round head of one bone, fitting into a cup shaped capsule in the connecting bone.

Question 5

Articulating bones of the hip

Ball and socket

Answer 5

Femur and pelvis

Question 6

Articulating bones of the shoulder

Ball and socket

Answer 6

Humerus and scapula

Question 7

Hinge joint

Answer 7

Only allows movement in one direction.

E.g ankle, knee, elbow

Question 8

Articulating bones of the ankle

Answer 8

Talus, tibia and fibula

Question 9

Articulating bones at the knee

Answer 9

Femur and tibia

Question 10

Articulating bones at the elbow

Answer 10

Humerus, radius and ulna

Question 11

Example of Dorsi flexion

Answer 11

Running, walking

Question 12

Example of plantar flexion

Answer 12

Standing on tip toes

Question 13

Example of horizontal abduction and adduction

Answer 13

Tennis forehand (adduction) and backhand (abduction)

Question 14

Plane and axis for extension/flexion

Answer 14

Plane: Sagittal
Axis: Transverse

Question 15

Plane and axis for abduction and adduction

Answer 15

Plane: Frontal
Axis: Sagittal

Question 16

Plane and axis for rotation

Answer 16

Plane: Transverse
Axis: Vertical

Question 17

A plane of motion

Answer 17

A set of imaginary lines running through the body, in order to help us understand and explain joint actions.

Question 18

First class lever with example

Answer 18

Fulcrum is located between the effort and the resistance

Example: extension of the elbow

Question 19

Second class lever with example

Answer 19

Resistance lies between the fulcrum and the effort

Example: plantar flexion of the ankle

Question 20

Third class lever and example

Answer 20

Effort lies between the fulcrum and the resistance

Example: hip, knee, elbow flexion