Chapter 7: Appendicular Skeleton

The patella ________.

is a sesamoid bone

The coronoid process forms the inferior lip of the trochlear notch.

True

Which of the following is a bone in the distal row of carpals that forms a proximal articulation with the scaphoid?

Trapezium

In the proximal radioulnar joint, medial and lateral rotation occurs about which structure?

Radial head

Which of the following pieces of information about an individual can be discerned from the skeleton?

All of the above

The point of the elbow is formed by the ________ of the ulna.

Olecranon process

When seated, the body weight is borne by the ________.

Ischial tuberosities

The acetabulum is formed by the fusion of which bones?

Illium, ischium, and pubis

Characteristics that specifically identify a skeletal element as belonging to a female include ________.

A bone with smaller prominences and a smoother surface

The crural interosseous membrane extends between the ________.

tibia and fibula

Identify the structure indicated by Label Q.

Head

Identify the structure indicated by Label D.

Acetabulum

Identify the structure indicated by Label C.

Trapezium

Identify the structure indicated by Label R.

Anatomical neck

The bones of the limbs and their girdles collectively form which part of the skeletal system?

Appendicular skeleton

The age of a skeleton can be determined from ________.

The degree of ossification of cranial sutures

Compared with the pectoral girdle, the pelvic girdle is ________.

More robust, adapted for weight bearing and locomotion

The ________ of the humerus articulates with the radius.

Capitulum

The connection between the humerus and the scapula is called the ________ joint.

glenohumeral

How can the age of a skeleton be determined?

All of the above

A depression on the posterior side of the humerus is called the coronoid fossa.

False

The ________ is the most fractured carpal bone.

Scaphoid

The distal tip of the fibula ________.

forms the lateral malleolus

The only point of direct connection between the pectoral girdle and the axial skeleton is at (the) ________.

sternal end of the clavicle

Which of the following is a large process that projects anteriorly from the lateral end of the scapular spine?

Acromion

The largest bone of the pelvic girdle is the ________.

ilium

The capitulum is a part of the ________.

humerus

Imagine you are a forensic osteologist teaching a course on differentiating the male skeleton from the female skeleton. Which area of the skeleton would best illustrate differences?

Pelvis

The groove in the proximal epiphysis on the anterior surface of the ulna that articulates with the humerus is called the ________.

trochlear notch

The pubic angle tends to be greater than 100 degrees in males.

False

Identify the structure indicated by Label B.

Interosseous membrane

The second largest bone in the foot is the ________.

talus

On the humerus, the olecranon process of the ulna projects into the ________ when the arm is extended.

olecranon fossa

Compared with that of females, the male coccyx ________.

points anteriorly

Identify the structure indicated by Label B.

Supraspinous fossa

The medial condyle of the femur articulates with the ________.

tibial medial condyle

Which of the following sports injuries, common in women, results from repetitive forces on the bone during running or jumping?

stress fracture

There are ________ phalanges in the appendicular skeleton.

56

The surgical neck of the humerus corresponds to (the) ________.

metaphysis of the bone