Branches of external carotid artery are:

Superior thyroid artery
Lingual artery
Facial artery
Occipital artery
Posterior auricular artery
Ascending pharyngeal artery
Maxillary artery
Superficial temporal artery

1,2 and 3 are anterior branches. 4 and 5 are posterior branches. Ascending pharyngeal artery is the only medial branch of external carotid artery. Maxillary artery and superficial temporal artery are the terminal branches.

Structures passing deep to flexor retinaculum of the hand are:

Median nerve
Radial bursa
Ulnar bursa
Tendons of

Flexor carpi radialis
Flexor pollicis longus
Flexor digitorum superficialis
Flexor digitorum profundus

Remember – Flexor carpi ulnaris tendon does not pass under flexor retinaculum!

Structures passing superficial to flexor retinaculum of the hand are:

Ulnar nerve
Ulnar artery and vein
Palmar cutaneous branch of ulnar nerve
Palmar cutaneous branch of median nerve
Palmaris longus

Circumventricular organs are those areas of the brain that lie outside the blood brain barrier. They contain receptors which detect changes in body fluids such as osmolality and glucose concentration. The circumventricular organs are:
-Subfornical organ
-Subcommisural organ
-Organum vasculosum of lamina terminalis
-Posterior pituitary
-Pineal gland
-Area postrema
-Median eminence

Boundaries of femoral ring are:

Medial – Lacunar ligament
Anterior – Inguinal ligament
Lateral – Septum separating it from the femoral vein
Posterior – Pectineus and covering fascia

Femoral hernia passes through the femoral ring.

Oesophageal hiatus is at T10 vertebral level. Structures passing through esophageal hiatus are:

Oesophagus
Oesophageal branches of left gastric artery and vein
Left and right vagus nerves
Lymphatics
Phreno oesophageal ligament

Q – AIIMS Nov 11, AIIMS Nov 06

Mnemonic for Structures passing through foramen ovale of skull is : OVALE
OVALE stands for:
O – Otic ganglion (Does not pass through it, but lies inferior to it)
V – V3 cranial nerve
A – Accessory meningeal artery
L – Lesser petrosal nerve
E – Emissary vein

MEDIAN TRAP:
Myxoedema
Edema premenstrually
Diabetes
Idiopathic
Acromegaly
Neoplasm
Trauma
Rheumatoid arthritis
Amyloidosis
Pregnancy
Mnemonic 2 - TRAMP:
T – Trauma (occupational)
R – Rheumatiod arthritis
A – Acromegaly
M – Myxoedema
P – Pregnancy
Mnemonic 3: ARMPIT 
A – Acromegaly
R – Rheumatiod arthritis
M – Myxoedema
P – Pregnancy
I – Idiopathic
T – Trauma (occupational)

Mnemonic for the branches of the coeliac arterial trunk is : Left Hand Side (LHS)
Left Hand Side stands for:
Left – Left gastric artery
Hand – Hepatic artery
Side – Splenic artery

Mnemonic for clinical features of Bell’s palsy is: BELL’S Palsy
B – Blink reflex abnormal
E – Earache
L – Lacrimation [deficient, excess]
L – Loss of taste
S – Sudden onset
Palsy of VII nerve muscles