WAEC - Biology (1999 - No. 14)
Which of the following bones forms a joint at the point labelled II in the diagram?
Humerus
Sternum
Radius
Femur
คำอธิบาย
The scapula, or shoulder blade, directly joins the clavicle (collarbone) at the acromioclavicular joint and the humerus (upper arm bone) at the glenohumeral joint.
The scapula bone joins with the clavicle to form the shoulder (pectoral) girdle, which connects the humerus (upper arm bone) with the thorax.
(See diagram above)