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Describe regions of the upper limb
1. Pectoral girdle (shoulder girdle)
2. Axilla (armpit)
3. Arm (brachium)
4. Elbow
5. Forearm (antebrachium)
6. Wrist
7. Hand
Describe the corresponding dermatomes of the upper limbs
1. Brachial plexus (C5-T1)
2. Fingers (C6-C8)
Which spinal nerves innervate the dermatomes of the upper limbs?
Ant. & Post. rami of spinal nerves C4-T2
Where the C5 innervates?
ANTERIOR surface – lateral arm and forearm to the wrist
Where the C6 innervates?
ANTERIOR & POSTERIOR surface –
Lateral arm, Lateral forearm, thumb
Where the C7 innervates?
* POSTERIOR surface of arm, forearm
* Dorsum of the wriste
* Index and middle fingers
- Palmar surface to index and middle fingers (“peace sign”)
Where the C8 innervates?
ANTERIOR & POSTERIOR surface – Medial arm, Medial forearm, Ring and little finger
Structures involved in superficial venous drainage of the upper limb
- Cephalic vein
- Basilic vein
- Median cubital vein
What is the lymphatic system?
It's responsible for draining extracellular fluids in the body that are not pickedup by the venous system
How does lymph in the upper limb drain?
Lymph from digits and palm
↓ drain to
Lymphatic vessels
Axillary lymph nodes (in the axilla)
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