lab 10 hw

The ________ of the scapula receives the humerus.

glenoid cavity

These are major sites of muscle attachment on the femur.

greater and lesser trochanters

These bones form the pectoral girdle.

clavicle and scapula

The strongest, heaviest bone of the body is in the thigh. It is the __________.

femur

The arm consists of one long bone, the __________.

humerus

The female pelvis is ________ than the male pelvis.

lighter

The leg bones articulate with this ankle bone and transfer weight to the foot.

talus

The __________ girdle attaches the upper limb to the axial skeleton.

pectoral

The hip (coxal) bones articulate with each other at the ________.

pubic symphysis

The acromial end of the clavicle articulates with the ________.

scapula

Body weight is borne by the two largest tarsal bones: ________ and ________.

talus, calcaneus

How many bones are found in the arm or brachial region?

1

How many bones are found in the leg?

2

Which feature of the female pelvis provides for compatibility with vaginal birth?

Wide pelvic inlet and outlet

This bone articulates with the acetabulum.

femur

This part of the coxal bone bears your weight when you sit.

ischial tuberosity

The ________ of the humerus is called the "funny bone." The tingling sensation that you experience is due to striking of the ulnar nerve that runs behind this structure.

medial epicondyle

This bone is commonly called the kneecap.

patella

Which statement about the pectoral girdle is false?

Its bones attach to each other and to the axial skeleton.

Name the large bone or bones of the thigh.

femur

Your X-ray examination reveals that you have fractured your fibula. Your physician remarks, "Well, it's better than breaking your tibia." Explain why a fracture of the tibia would be worse than a fracture of the fibula.

The tibia supports more weight than the fibula, and there is less soft tissue around the bone so the break is often an open fracture more susceptible to infection.

This is a characteristic of the male pelvis.

The sacrum curves ventrally into the pelvic outlet.

The exceptional flexibility of the shoulder girdle is due, in part, to the ________.

ability of the scapula to slide easily against the thorax

The pelvis consists of ________.

both hip (coxal) bones and the sacrum and coccyx

The radius articulates with this condyle of the humerus.

capitulum

FOOSH is an acronym that stands for Fall on Out-Stretched Hand. All of the following injuries are possible after a FOOSH except:

distal phalanx fracture.

These fossae of the scapula contain muscles that stabilize the shoulder.

infraspinous fossa, subscapular fossa, and supraspinous fossa

Extension (or straightening) of the elbow stops when the proximal end of the ulna engages the ________.

olecranon fossa of the humerus

Little bones of the fingers and toes are called the ________.

phalanges

Name the bone or bones of the forearm.

radius and ulna

The medial end of the clavicle articulates with the ________.

sternum

The head of the fibula articulates with the ________.

tibia

This bone bears the medial malleolus.

tibia

The fingers of the hand and the toes of the foot—with the exception of the great toe and the thumb—each have three phalanges.

true