Upper Limb - Fascia, Arteries, Veins, Lymph, Dermatomes (1) Flashcards
Which dermatome supplies the thumb?
C6
Which dermatome supplies the lateral epicondyle of the elbow? And the medial epicondyle?
It depends which textbook you look at.
Lateral epicondyle = C5 or C6.
Medial epicondyle = T1 or C8.
Which dermatome supplies the tip of the middle finger?
C7.
Which dermatome supplies the little finger?
C8.
The extensor retinaculum in the wrist is a thickened continuation of the _______ ?
Antebrachial fascia.
The cutaneous innervation to the little finger and the medial surface of the 4th finger is by the ______ nerve.
Ulnar.
The cutaneous innervation to most of the palm, and the palmar surface of the index finger and middle finger is by the ______ nerve.
Median.
The cutaneous innervation to most of the dorsum of the hand, and the base of the thumb is by the ______ nerve.
Radial.
Name the two major superficial veins of the arm, from medial to lateral.
Basilic vein, Cephalic vein.
What name is given to the veins that communicate between the superficial and the deep veins of the upper limb?
Perforating veins.
Name three superficial veins of the cubital fossa.
Cephalic, Basilic, Median Cubital Vein.
The Basilic Vein and the Cephalic Vein both drain into the ___________, after piercing the __________.
Axillary vein. Deep Fascia.
Which muscular landmark is the starting point for the brachial artery?
Teres major.
What happens to the brachial artery at the cubital fossa?
Under the cover of the bicipital aponeurosis, it branches into the ulnar artery and radial artery.
What is the medial bicipital groove?
This is where the brachial artery can be palpated, between the biceps and triceps.
Which nerve accompanies the brachial artery as it enters the cubital fossa?
The median nerve.
What is the origin of the deep artery of the arm?
The proximal part of the brachial artery.
Name the superior, lateral, and medial boundaries of the cubital fossa.
Superior: an imaginary line between the medial and lateral epicondyles
Medial: the edge of pronator teres
Lateral: the edge of brachioradialis
Which artery passes between the two heads of Flexor Digitorum Superficialis? Which nerve accompanies it between the two heads of FDS?
Ulnar artery. Median nerve.
Which bones are the attachment sites for the Flexor Retinaculum of the wrist?
Pisiform/Hamate and Scaphoid/Trapezium.
Which tendons pass through the carpal tunnel, deep to the flexor retinaculum?
Flexor digitorum profundus, Flexor digitorum superficialis, Flexor pollicis longus. Total of nine.
Arteries of the hand: What is the origin of the Superficial Palmar Arch?
The Superficial Palmar Arch is a direct continuation of the ulnar artery, and it is completed on the lateral side by the superficial branch of the radial artery.
What is the origin of the Deep Palmar Arch?
The Deep Palmar Arch is a direct continuation of the radial artery, and it is completed on the medial side by the deep branch of the ulnar artery.
What is a handy way to explain the location of the superficial palmar arch?
Extend the thumb fully. The distal border of the extended thumb lies in line with the superficial palmar arch, going across the palm.
