Anatomical Spaces Flashcards by Akash Dutt

What are the boundaries of the Thoracic Outlet?

T1
1st rib
manubrium of the sternum

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What is the roof of the Thoracic Outlet?

Suprapleural membrane (C7 - T1)

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What are the contents of the Thoracic Outlet?

Trachea
esophagus
Left subclavian artery
Left common carotid artery
Brachiocephalic trunk
B/L brachiocephalic veins
B/L vagus nerves
B/L phrenic nerves
T1 of Brachial Plexus
sternohyoid
sternothyroid
longus coli

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What are the boundaries of the Axilla?

Anterior: Pecs
Posterior: subscapularis, teres major, lat dorsi
Medial: upper 4 ribs, SA
Lateral: Bicipital groove of the humerus

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What are the contents of the Axilla?

axillary artery
axillary vein
cords of brachial plexus
APICAL lymph: anterior (pec), posterior (subscap), infraclavicular, central, apical, lateral

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What are the boundaries of the Quadrangular Space?

Superior: Teres minor
inferior: Teres major
Medial: Long head of the triceps
Lateral: humerus

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What are the contents of the Quadrangular Space?

Axillary Nerve
Posterior circumflex humeral artery
Posterior circumflex humeral vein

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What are the boundaries of the triangular space?

Superior: Teres minor
Inferior: Teres Major
Lateral: Long head of the triceps

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What are the contents of the triangular space?

posterior scapular branch of the subscapular artery

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What are the boundaries of the Cubital Fossa?

Lateral: brachioradialis
Medial: Pronator Teres
Superior: line of epicondyles

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What is the roof of the Cubital Fossa?

Medial Cubital Vein

- Bicipital Aponeurosis

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What is the floor of the Cubital fossa?

Brachialis

- Supinator

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What are the contents of the Cubital Fossa (Lateral to Medail)?

Radial Nerve
Biceps Brachii tendon
Brachial Artery
Median Nerve

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What are the boundaries of the anatomical snuffbox?

Anterior: Abductor pollicis longus, Extensor pollicis brevis
Posterior: Extensor pollicis longus

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What is the roof of the anatomical snuffbox?

cephalic vein

- superficial branch of radial nerve

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What is the floor of the anatomical snuffbox?

Radial styloid
Scaphoid
Trapezium
1st metacarpal

What are the contents of the anatomical snuffbox?

radial artery
extensor carpi radialis longus tendon
extensor carpi radialis brevis tendon

What is the roof of the carpal tunnel?

Flexor retinaculum attached to STOP
Scaphoid
Trapezium
Os hamate
Pisiform

What is the floor of the carpal tunnel?

Trapezium
Trapezoid
Capitate
Hamate

What are the contents of the cubital fossa?

medial nerve
flexor digitorum profundus
flexor digitorum superficialis
flexor pollicis longus

What are the boundaries of Guyon’s Canal?

Medial: pisiform

- Lateral: Hamate

What is the roof of Guyon’s Canal?

Flexor retinaculum

What is the floor of Guyon’s Canal?

pisohamate ligament

What are the contents of Guyon’s Canal?

Ulnar artery

- Ulnar Nerve

What are the boundaries of the Inguinal Canal?

- Anterior: external oblique aponeurosis, internal oblique | - Posterior: conjoint tendon, transversalis

What is the roof of the Inguinal Canal?

- internal oblique | - transverse abdominis

What is the floor of the Inguinal Canal?

- Lacunar ligament | - Inguinal ligament

What are the contents of the Inguinal Canal?

- Illioinguinal nerve - Spermatic cord - round ligament

What are the boundaries of the Femoral Canal?

- Medial: Lacunar ligament - Anterior: Inguinal ligament - Lateral: Femoral Vein - Posterior: Pectineus, Pectineal ligament

What are the contents of the Femoral Canal?

- lymph nodes: cloqeut or rosenmuller

What are the boundaries of the Adductor (subsartorial or hunters) Canal?

- Anterolateral: Vastus Medialis - Medial: Sartoris - Posterior: Adductor Longus, Adductor Magnus

What are the contents of the Adductor Canal?

- Femoral artery - Femoral Vein - Saphenous Nerve - nerve to vastus medialis

What are the boundaries of the popliteal fossa?

- Superiolateral: Biceps Femoris - Superiormedial: Semimembranosis, Semitendonosis - Inferolateral + Inferomedial: heads of the gastrocnemius

What is the roof of the popliteal fossa?

- short saphenous vein

What is the floor of the popliteal fossa?

- femur - end of knee - poplitealus

What are the contents of the popliteal fossa (Deep to superficial)

- Popliteal artery - Popliteal vein - common peroneal (fibular) nerve - Tibial Nerve

What are the contents of the Tarsal Tunnel?

- posterior Tibial tendon - Flexor digitorum - Posterior Tibial artery - Posterior Tibial Vein - Posterior Tibial Nerve - Flexor Hallucis longus