This document provides an overview of the anatomy of the upper limb, including the bones of the shoulder girdle and arm. It discusses the clavicle, scapula, and humerus bones in detail. The clavicle lies horizontally and connects the trunk to the upper limb. The scapula has three angles, three borders, and processes including the glenoid cavity, acromion, coracoid, and spine. The humerus is the long bone of the arm and has a head, neck, shaft and lower end. The document also includes five multiple choice questions to test understanding.

1. SHS. 101
ANATOMY I
LECTURE NO. 5
DR NOORAY AFZAL
Noor.Afzal@umt.edu.pk

2. UPPER LIMB
• It is associated with lateral aspect of lower
portion of neck and thoracic wall
• It is suspended from trunk by muscles and
articulation
• Upper limb is divided into shoulder, arm,
forearm, and hand

3. REGIONS OF UPPER LIMB
• Shoulder - area of upper limb attachment to
trunk
• Arm - between shoulder and elbow joint
• Forearm - between elbow joint and wrist joint
• Hand - distal to wrist joint

5. TRANSITION AREAS OF UPPER LIMB
• Axilla
• Cubital fossa
• Carpal tunnel
• Important structures pass through, or are related
to, each of these areas

7. OSTEOLOGY OF UPPER LIMB
SHOULDER
GIRDLE
CLAVICLE (1)
SCAPULA (1)
ARM
HUMERUS (1)

9. CLAVICAL SCAPULA

10. CLAVICLE
• Only bony attachment between trunk and
upper limb
• Long slender bone
• Lies horizontally
• S-shaped bone
• Subcutaneous bone

12. CLAVICLE
• Medial 2/3rd convex forward
• Lateral 1/3rd concave forward

13. ENDS OF CLAVICLE
• Acromial (lateral) end - flat
• Sternal (medial) end - quadrangular

15. ACROMIAL END( lateral end )
• It has a small oval facet on its surface
• It articulate with a similar facet on the medial
surface of acromion of scapula

16. STERNAL END (medial end )
• It has a much larger facet
• Articulate with manubrium of sternum

19. ARTICULATION OF CLAVICLE
• Medially – sternum and 1st costal cartilage
• Laterally – acromian process of scapula

22. SCAPULA
• Flat triangular bone
• Posterior chest wall – 2nd and 7th rib

24. SCAPULA
• Three angles (lateral, superior, and inferior)
• Three borders (superior, lateral, and medial)
• Two surfaces (costal and posterior)
• Three processes (acromion, spine, and coracoid
process)

25. Angels of Scapula

26. Borders of Scapula

27. Surfaces of scapula

28. SUBSCAPULAR FOSSA
• Costal surface of scapula is unremarkable
• Characterized by a shallow concave
subscapular fossa

29. PROCESSES OF SCAPULA
• Spine of scapula
• Acromion
• Glenoid cavity
• Coracoid process

30. Processes of scapula

31. SPINE OF SCAPULA
• A prominent spine subdivides posterior
surface of scapula
– Supraspinous fossa
– Infraspinous fossa

33. ACROMION PROCESS
• It is an anterolateral projection of spine
• Arches over the glenohumeral ( shoulder ) joint
• Articulates, via a small oval facet with clavicle

35. GLENOID CAVITY
• Lateral angle of scapula is marked by a shallow,
comma-shaped glenoid cavity
• It articulates with head of humerus to form
glenohumeral joint

37. CORACOID PROCESS
• A hook-like structure that projects anterolaterally
• Positioned directly inferior to lateral part of
clavicle
• Small distinct suprascapular notch lies
immediately medial to root of coracoid process

38. Processes of scapula

39. ARTICULATIONS OF SCAPULA
• Glenoid cavity - Humerus
• Acromion – Clavicle

42. HUMERUS
Long bone of arm
PARTS OF HUMERUS:
• Head
• Surgical neck
• Anatomical neck
• Shaft
• Lower end

45. Greater tuberosity
TUBEROSITIES Lesser tuberosity
Deltoid tuberosity
FOSSA Radial fossa
Coronoid fossa
Olecranon fossa

47. ARTICULATION OF HUMERUS
• Head of humerus – Glenoid cavity
• Lower end of humerus
Capitulum Trochlea
With with
head of radius Ulna

49. QUESTION
2. The only long bone that lies horizontally is?
a. Humerus
b. Clavicle
c. Scapula
d. All of above

50. QUESTION
2. The only long bone that lies horizontally is?
a. Humerus
b. Clavicle
c. Scapula
d. All of above

51. QUESTION
3. End of clavicle that is quadrangular?
a. Acromial
b. Coracoid
c. Sternal
d. Both a and b

52. QUESTION
3. End of clavicle that is quadrangular?
a. Acromial
b. Coracoid
c. Sternal
d. Both a and b

53. QUESTION
4. The process of scapula that articulates with
humerus is?
a. Acromian
b. Coracoid
c. Spine
d. Glenoid

54. QUESTION
4. The process of scapula that articulates with
humerus is?
a. Acromian
b. Coracoid
c. Spine
d. Glenoid

55. QUESTION
5. Intertubercular groove lies between?
a. Deltoid and lesser tuberosity
b. Deltoid and greater tuberosity
c. Lesser and greater tuberosity
d. None of above

56. QUESTION
5. Intertubercular groove lies between?
a. Deltoid and lesser tuberosity
b. Deltoid and greater tuberosity
c. Lesser and greater tuberosity
d. None of above