Chapter 3
Bone of Arm:
Humerus
, HUMERUS
Q. Write a short note on lower end
of humerus.
Q. Supracondylar fracture of
humerus.
Q. List the nerve closely related to
humerus.
• Longest and strongest bone of
the upper limb.
, HUMERUS
Parts of Humerus
• Upper end – head, neck, greater
tubercle, lesser tubercle, and
intertubercular sulcus.
• Head – rounded, smooth, and forms
one-third of sphere
• Shaft – cylindrical in upper half and
triangular in lower half.
• Lower end – capitulum, trochlea, radial
fossa, coronoid fossa, medial condyle,
lateral condyle, and olecranon fossa.
, Fig. 3.1: Parts and
borders of humerus
(right, anterior and
posterior views)
Bone of Arm:
Humerus
, HUMERUS
Q. Write a short note on lower end
of humerus.
Q. Supracondylar fracture of
humerus.
Q. List the nerve closely related to
humerus.
• Longest and strongest bone of
the upper limb.
, HUMERUS
Parts of Humerus
• Upper end – head, neck, greater
tubercle, lesser tubercle, and
intertubercular sulcus.
• Head – rounded, smooth, and forms
one-third of sphere
• Shaft – cylindrical in upper half and
triangular in lower half.
• Lower end – capitulum, trochlea, radial
fossa, coronoid fossa, medial condyle,
lateral condyle, and olecranon fossa.
, Fig. 3.1: Parts and
borders of humerus
(right, anterior and
posterior views)
