Boundaries of Potential Spaces, Canals and Intervals

Question 1

What are the boundaries of the Femoral Triangle?

Answer 1

Superiorly: INGUINAL LIGAMENT
Medially: ADDUCTOR LONGUS
Laterally: SARTORIUS
Floor: PECTINEUS, ILIOPSOAS & ADDUCTOR LONGUS
Roof: FASCIA LATA

Question 2

What are the boundaries of the Quadrangular Space?

Answer 2

Superiorly: TERES MINOR
Inferiorly: TERES MAJOR
Medially: LONG HEAD OF TRICEPS BRACHII
Laterally: SURGICAL NECK OF HUMERUS

Question 3

What are the boundaries of the Triangular Interval (Lower Triangular Space)?

Answer 3

Superiorly: TERES MAJOR
Medially: LONG HEAD OF TRICEPS BRACHII
Laterally: HUMERUS/LATERAL HEAD OF TRICEPS BRACHII

Question 4

What are the boundaries of the Triangular Space (Upper Triangular Space)?

Answer 4

Superiorly: TERES MINOR/SUBSCAPULARIS
Inferiorly: TERES MAJOR
Laterally: LONG HEAD OF TRICEPS BRACHII

Question 5

What are the boundaries of the Femoral Canal?

Answer 5

Anteriorly: INGUINAL LIGAMENT
Posteriorly: PECTINEAL LIGAMENT, SUPERIOR RAMI OF PUBI & PECTINEUS
Medially: LACUNAR LIGAMENT
Laterally: FEMORAL VEIN

Question 6

What are the boundaries of the Femoral Ring?

Answer 6

Same as for the Femoral Canal - the ring is the opening of the canal, at its superior border

Question 7

What are the boundaries of the Adductor Canal?

Answer 7

Anterior: SARTORIUS
Posterior: ADDUCTOR LONGUS & ADDUCTOR MAGNUS
Lateral: VASTUS MEDIALIS

Question 8

What are the borders of the Popliteal Fossa?

Answer 8

Superiomedially: SEMIMEMBRANOSUS
Superiolaterally: BICEPS FEMORIS
Inferiomedially: MEDIAL HEAD OF GASTROCNEMIUS
Inferiolaterally: LATERAL HEAD OF GASTROCNEMIUS & PLANTARIS
Floor: POSTERIOR KNEE JOINT CAPSULE & POSTERIOR FEMUR
Roof: POPLITEAL FASCIA & SKIN

Question 9

What are the borders of the Cubital Fossa?

Answer 9

Superiorly: (imaginary) LINE BETWEEN THE HUMERAL CONDYLES
Medially: PRONATOR TERES
Laterally: BRACHIORADIALIS
Floor: BRACHIALIS (and supinator)
Roof: SKIN & FASCIA (reinforced by the bicipital aponeurosis)

Question 10

What are the contents of the cubital fossa?

Answer 10

Brachial Artery
Median Nerve
Radial Nerve
Biceps Tendon
Handy mnemonic: Really Need Beer To Be At My Nicest

Question 11

What are the contents of the popliteal fossa?

Answer 11

Popliteal artery
Popliteal vein
Tibial nerve
Common fibular nerve
Handy: Remember popliteal nerve

Question 12

What are the borders of the Axilla?

Answer 12

Apex: LATERAL FIRST RIB, POSTERIOR CLAVICLE & SUPERIOR SCAPULA
Anterior Wall: PEC MAJOR, PEC MINOR & SUBCLAVIUS
Medial Wall: SERRATUS ANTERIOR & THORACIC WALL (ribs & intercostal muscles)
Posterior Wall: SUBSCAPULARIS, TERES MAJOR & LATISSIMUS DORSI
Lateral Wall: INTERTUBECULAR SULCUS, BICEPS BRACHII, CORACOBRACHIALIS

Question 13

What are the contents of the axilla?

Answer 13

Axillary artery
Axillary vein
Brachial plexus
Biceps brachii
Corocobrachialis
Axillary lymph nodes

Question 14

What are the contents of the femoral canal?

Answer 14

Lymphatic vessels
Deep lymph node (lacunar)
Empty space
Loose connective tissue

Question 15

What are the contents of the femoral triangle?

Answer 15

Femoral nerve
Femoral artery
Femoral vein
Femoral canal (empty space)
Handy mnemonic: NAVEY

Question 16

What structures does the femoral sheath enclose?

Answer 16

Femoral artery
Femoral vein
Femoral canal

Question 17

What is the adductor hiatus?

Answer 17

Marks the apex of the adductor canal

Gap between the adductor and hamstring attachments of adductor magnus

Question 18

What are the contents of the adductor canal?

Answer 18

Femoral artery
Femoral vein
Nerve to vastus medialis
Saphenous nerve

Question 19

What structures pass all the way through the adductor hiatus?

Answer 19

Femoral artery

Femoral vein

Question 20

Where is the adductor hiatus located?

Answer 20

Adductor magnus