Anatomy

Orbital Bones

Mnemonic Bone Sinus
Many Maxillary bone Maxillary sinus
Friendly Frontal bone Frontal sinus
Zebras Zygomatic bone -
Enjoy Ethmoid bone Ethmoid sinus
Lazy Lacrimal bone -
Summer Sphenoid bone Sphenoid sinus
Picnic Palatine bone -

Paranasal Sinuses

  • Maxillary sinus
  • Frontal sinus
  • Ethmoid sinus
  • Sphenoid sinus

Pterygopalatine Fossa

  • Inferior orbital fissure
  • Sphenopalatine foramen
  • Foramen rotundum
  • Pterygoid canal
  • Pharyngeal canal
  • Palatine canal
  • Pterygomaxillary fissure

Muscles of Head & Neck

Mastication

Muscle Nerve Function
Temporalis CN V3 Elevation
Masseter CN V3 Elevation
Medial pterygoid CN V3 Elevation
Lateral pterygoid CN V3 Depression

Middle Ear

Muscle Nerve Function
Tensor tympani CN V3 -
Stapedius CN VII -

Face

Muscle Nerve Function
Superior tarsal muscle Sympathetic fibers -
Levator palpebrae superioris CN III -
Buccinator CN VII -
Corrugator CN VII -
Risorius CN VII -
Orbicularis oculi CN VII -
Orbicularis oris CN VII -
Occipitofrontalis CN VII -
Platysma CN VII -

Palate

Muscle Nerve Function
Tensor veli palatini CN V3 -
Levator veli palatini CN X :: pharyngeal branch -
Palatopharyngeus CN X :: pharyngeal branch -
Palatoglossus CN X :: pharyngeal branch -

Pharynx

Muscle Nerve Function
Stylopharyngeus CN IX -
Salpingopharyngeus CN X :: pharyngeal branch -
Palatopharyngeus CN X :: pharyngeal branch -
Pharyngeal constrictor CN X :: pharyngeal branch -

Larynx

Muscle Nerve Function
Cricothyroid CN X :: superior laryngeal nerve -
Cricoarytenoid CN X :: recurrent laryngeal nerve -
Thyroarytenoid CN X :: recurrent laryngeal nerve -
Arytenoid CN X :: recurrent laryngeal nerve -

Tongue

Muscle Nerve Function
Palatoglossus CN X Elevation
Styloglossus CN XII Elevation
Retraction
Hyoglossus CN XII Depression
Retraction
Genioglossus CN XII Depression
Protrusion

Hyoid

Muscle Nerve Function
Mylohyoid CN V -
Digastric muscle :: anterior belly CN V -
Digastric muscle :: posterior belly CN VII -
Stylohyoid CN VII -
Geniohyoid C1 -
Thyrohyoid C1 -
Sternothyroid AC -
Sternohyoid AC -
Omohyoid AC -

Salivary Glands

  • Parotid glands
  • Submandibular glands
  • Sublingual glands

Laryngeal Cartilages {EAT-CCC}

  • Epiglottis cartilage
  • Arytenoid cartilage
  • Thyroid cartilage
  • Cricoid cartilage
  • Corniculate cartilage
  • Cuneiform cartilage

Structures of Suboccipital Region

Suboccipital muscles

  • Rectus capitis anterior
  • Rectus capitis lateralis
  • Rectus capitis posterior major
  • Rectus capitis posterior minor
  • Obliquus capitis superior
  • Obliquus capitis inferior

Suboccipital triangle

  • Rectus capitis posterior major
  • Obliquus capitis superior
  • Obliquus capitis inferior

Structures of Neck

Triangles

Structure Contents
Submental Mylohyoid
Submandibular Submandibular gland
Carotid CN X
Common carotid artery
Internal jugular vein
Muscular Thyroid
Trachea
Esophagus
Occipital -
Subclavian -

Compartments

Structure Contents
Visceral Thyroid
Trachea
Esophagus
Vascular CN X
Common carotid artery
Internal jugular vein
Vertebral Spine
Paraspinal muscles

Spaces

Structure Contents
Pretracheal -
Retropharyngeal -

Fascia

Structure Contents
Superficial -
Investing -
Pretracheal -
Buccopharyngeal -
Prevertebral -
Carotid sheath -

Lymph Node Levels of Neck

Branches of External Carotid Artery

Mnemonic Branch
Some Superior thyroid artery
Anatomists Ascending pharyngeal artery
Like Lingual artery
Freaking Facial artery
Out Occipital artery
Poor Posterior auricular artery
Medical Maxillary artery
Students Superficial temporal artery

Branches of Subclavian Artery {VIT-CD}

  • Vertebral artery
  • Internal thoracic artery
  • Thyrocervical trunk
  • Costocervical trunk
  • Dorsal scapular artery

Branches of Axillary Artery

Mnemonic Branch
Screw Superior thoracic artery
The Thoracoacromial artery
Lawyers Lateral thoracic artery
Save Subscapular artery
A Anterior circumflex artery
Patient Posterior circumflex artery

Brachial Plexus

Mnemonic Plexus Nerve
Read Root Dorsal scapular nerve
Long thoracic nerve
That Trunk Suprascapular nerve
Damn Division -
Cell Cord Lateral pectoral nerve
Medial pectoral nerve
Thoracodorsal nerve
Subscapular nerve
Biology Branch Axillary nerve
Musculocutaneous nerve
Medial nerve
Ulnar nerve
Radial nerve

Axillary Spaces

Space Contents
Quadrangular space Axillary artery
Posterior humeral circumflex artery
Triangular space Scapular circumflex vessels
Triangular interval Deep brachial artery
Radial nerve

Structures of Diaphragm

Hiatus

Structure Contents
Inferior vena cave Right phrenic nerve
Esophagus CN X
Aorta Azygous nerve
Thoracic duct

Arcuate ligament

Structure Contents
Median -
Medial Psoas major
Lateral Quadratus lumborum

Splanchnic Nerves

Sympathetic: T1 ~ L2

  • Cardiopulmonary nerve
  • Greater splanchnic nerve
  • Lesser splanchnic nerve
  • Least splanchnic nerve
  • Lumbar splanchnic nerve
  • Sacral splanchnic nerve

Parasympathetic: S2 ~ S4

  • Pelvic splanchnic nerve

Branches of Lumbar Plexus

Branch Sensory Motor
Iliohypogastric nerve Suprapubis Internal oblique muscle
Transverse abdominal muscle
Ilioinguinal nerve Scrotum
Labia majora		 Internal oblique muscle
Transverse abdominal muscle
Genitofemoral nerve Scrotum
Labia majora
Upper anterior thigh		 Cremaster muscle
Lateral femoral cutaneous nerve Lateral thigh -
Obturator nerve Medial thigh Medial compartment of thigh
Femoral nerve Anterior thigh Anterior compartment of thigh
Saphenous nerve Medial leg -

Branches of Sacral Plexus

Branch Sensory Motor
Sciatic nerve Posterior thigh Posterior compartment of thigh
Common fibular nerve Anterolateral leg Anterior compartment of leg
Lateral compartment of leg
Tibial nerve Posterolateral leg Posterior compartment of leg
Superior gluteal nerve - Gluteus minimus
Gluteus medius
Tensor fascia lata
Inferior gluteal nerve - Gluteus maximus
Posterior femoral cutaneous nerve Posterior thigh -
Pudendal nerve    
Inferior rectal nerves Rectum -
Perineal nerve Perineum -
Dorsal nerve of penis & clitoris Penis & Clitoris -

Pelvic Inlet {PAPPP}

  • Promontory
  • Arcuate line
  • Pectineal line
  • Pubic crest
  • Pubic symphysis

Contents of Sciatic Foramens

Greater Sciatic Foramen :: Suprapiriform Foramen

Nerves Vessels Muscles
Superior gluteal nerve Superior gluteal vessels -

Greater Sciatic Foramen :: Infrapiriform Foramen

Nerves Vessels Muscles
Inferior gluteal nerve Inferior gluteal vessels -
Pudendal nerve Internal pudendal vessels -
Sciatic nerve - -

Lesser Sciatic Foramen

Nerves Vessels Muscles
Pudendal nerve Internal obturator vessels Obturator internus

Pelvic Diaphragm

  • Levator ani
    • Puborectalis
    • Pubococcygeus
    • Iliococcygeus
  • Coccygeus

Perineum

Urogenital Triangle

  • Deep perineal pouch
    • Deep transverse perineal muscle
    • External urethral sphincter
  • Superficial perineal pouch
    • Superficial transverse perineal muscle
    • Ischiocavernosus
    • Bulbospongiosus

Middle

  • Perineal body

Anal Triangle

  • Internal anal sphincter
  • External anal sphincter

Branches of External Iliac Artery

Branch Supply
Inferior epigastric artery -
Deep femoral artery -
Femoral artery -
Popliteal artery  
Fibular artery Lateral compartment of leg
Anterior tibial artery Anterior compartment of leg
Posterior tibial artery Posterior compartment of leg
Sural arteries -

Branches of Internal Iliac Artery

Branch Supply
Lateral sacral artery -
Iliolumbar artery -
Superior gluteal artery Gluteus & Tensor fascia lata
Inferior gluteal artery Gluteus maximus
Obturator artery Medial compartment of thigh
Uterine artery / Deferential artery (Fallopian tube / Vas deferens) & (Uterus / Seminal vesicle)
Umbilical artery Medial umbilical ligament
Superior vesical artery Bladder & Ureter
Vaginal artery / Inferior vesical artery Bladder & Ureter & (Vagina / Prostate)
Middle rectal artery Rectum & Ureter & (Vagina / Prostate)
Internal pudendal artery  
Inferior rectal artery Rectum
Perineal artery Perineum & (Labia majora / Scrotum)
Dorsal artery of clitoris / penis Clitoris / Penis