Limbs 1

Question 1

The appendicular skeleton has two girdles that connect them to the axial skeleton:

Answer 1

pectoral (clavicle) and pelvic (scapula)

Question 2

The heel bone is called:

Answer 2

calcaneum

Question 3

three types of joints in order of their ability to move:

Answer 3

synovial, cartilage, fibrous. Fibrous is the least mobile

Question 4

what is supination?

Answer 4

palm facing upwards

Question 5

what is pronation?

Answer 5

palm facing downwards

Question 6

what is medial and lateral rotation?

Answer 6

former: rotation of the ankle towards centre
latter: rotation of the ankle towards the side

Question 7

which hinge joints have the most mobility?

Answer 7

ball and socket e.g. shoulder and hip

circumduction and component

Question 8

limited movement joints are:

Answer 8

hinge joints between carpals and tarsals

Question 9

the main difference between upper and lower body limbs are:

Answer 9

There is an extra joint between talus and calcaneum that allows foot adjustments

Question 10

why is the upper limb not good for weigh bearing?

Answer 10

the pectoral girdle is loosely attached to body axis

Question 11

limbs develop from limb buds from the mesoderm. Which layer of mesoderm do the connective tissue, bone and muscles arise from?

Answer 11

connective tissue and bone from the lateral plate mesoderm and muscles from the paraxial mesoderm