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Upper Limb- Blood & nerve
supply; effects of nerve injury
G.LUFUKUJA
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G.LUFUKUJA
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Clavipectoral fascia
Lufukuja G.
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Applied anatomy
The cubital fossa is the common
site for sampling and transfusion
of blood and intravenous
injections because of the
prominence and accessibility of
veins.
G.LUFUKUJA
Usually, the
median cubital
vein or basilic
vein is selected
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Applied anatomy..
The median cubital vein lies
directly on the deep fascia,
crossing the bicipital
aponeurosis(grace Deux (Fr. grace of
God) tendon), which separates it
from the underlying brachial
artery and median nerve and
provides some protection to the
latter.
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Anastomosis
around the elbow joint
Anastomosis
…
LG
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Lufukuja G.
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• The musculocutaneous nerve has a
segmental origin - C5-C6. As its name
suggests, it has both motor and sensory
fibres. The nerve usually passes
through the coracobrachialis and
between the biceps and the brachialis
and at the elbow it becomes the lateral
antebrachial cutaneous nerve. Above
the elbow it supplies only motor nerves
but below the elbow it contains only
sensory fibres
• Lesions of the nerve produce
weakness of flexion at the elbow and
weakness of supination. Weakness of
elbow flexion and forearm
supination.Sensory loss over the lateral
and volar aspect of the forearm.
• Weak or absent biceps tendon reflex.
Being a lower motor neurone lesion,
other expected signs include poor
muscle tone, marked wasting and
G.LUFUKUJA
possibly fasciculation
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• Median nerve palsy. If the median
nerve is damaged, the ability
to abduct and oppose the thumb
may be lost due to paralysis of
the thenar muscles (ape-hand
deformity)
• Sensory loss in the thumb, index
finger, middle finger, and the radial
aspect of the ring finger
• Weakness in forearm pronation and
wrist and finger flexion
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• Carpal Tunnel Syndrome: a
painful condition of the hand and
fingers caused by compression of a
median nerve where it passes over
the carpal bones through a passage
at the front of the wrist, alongside
the flexor tendons of the hand. It
may be caused by repetitive
movements over a long period, or
by fluid retention, and is
characterized by sensations of
tingling, numbness, or burning.
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• Pressure on or injury to the ulnar
nerve
• Abnormal sensations in the little
finger and part of the ring finger,
usually on the palm side
• Loss of coordination of the fingers
• Numbness, decreased sensation
• Pain, Tingling, burning sensation
• Weakness and clumsiness of the
hand
• An ulnar claw, also known as claw
hand, is an abnormal hand position that
develops due to a problem with
the ulnar nerve.
• Injury to the radial nerve usually
causes symptoms in the back of the
hand, near the thumb, and in the index
and middle fingers. Symptoms may
include:
• sharp or burning pain
• numbness or tingling
• trouble straightening the arm
• trouble moving the wrist and fingers
• “drooping” of the wrist and fingers (not
being able to extend or straighten the
wrist and fingers), also called “wrist
drop” and “finger drop”
• weak hand grip
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