Ch 8 : Appendicular Skeleton

An important function of the pelvic girdle is:

stability The pelvic girdle plays an important role in stabilizing the weight of the upper body.

The thumb is composed of only two phalanges: proximal and distal.

true Unlike the fingers, the thumb has only two phalanges.

The medial bone of the forearm is the:

ulna In the forearm, the ulna is medial to the radius.

How many bones make up the wrist?

8 carpal bones

The bone that articulates with the tibia to create the ankle joint is the calcaneus.

False The tibia articulates with the talus, not the calcaneus.

The hip socket, where the head of the femur articulates with the pelvis, is called the:

acetabulum The femur articulates with the acetabulum

The clavicle:

acts to stabilize the shoulder joint. The clavicle functions both to hold the upper limb away from the chest and stabilize it.

The lateral bone of the lower leg is the:

fibula In the lower limb, the fibula is lateral to the tibia.

Which landmark of the humerus attaches to the scapula?

head The humeral head articulates with the scapula.

The portion of the os coax that you sit on is called the:

ischium The ischium is the portion of the os coxae that you sit on.