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GAG · Anatomy

FRCA anatomy, drawn as clear schematics

97 anatomical and sonoanatomy schematics for anaesthesia: the relations, landmarks and pathways you need to understand, label and explain.

See the four courses All 97 Anatomy topics

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Schematic short-axis ultrasound view of the right interscalene groove at C6 with C5, C6 and C7 between the scalene muscles and the phrenic nerve on anterior scalene.
Interscalene block window: sonoanatomy and the phrenic nerve. A sonoanatomy schematic of the interscalene window, with depth markers and the structures to identify. Select the image to enlarge it.

Anaesthetic anatomy diagrams you can redraw

Anatomy for anaesthesia is mostly about relations: which nerve runs where, what lies next to the needle, which level is which. GAG’s anatomy items are simplified, labelled schematics that make those relations clear. They are designed for understanding and recall, not as realistic illustrations.

Each item gives you:

  • a labelled schematic, with a written Description of the visual;
  • Reveal labels, one at a time, to practise identification and labelling;
  • Explain in 60 seconds, and the clinical application where the item has it;
  • links to related GAG items, such as the matching block or the guidance on safe vascular access.

Sonoanatomy, schematically

23 items are sonoanatomy schematics or combine anatomy with sonoanatomy: drawn ultrasound views with depth, orientation and the structures to find, for regional anaesthesia, vascular access, focused echo and lung ultrasound in pneumothorax. They are not ultrasound images and do not replace supervised scanning.

Anatomy matters in both parts of the exam: for the Primary practical exams in Primary Practical, and for regional anaesthesia and procedures in Final Practical.

Examples from the library

Topics you will find in Anatomy

A selection of 33 published titles. The topic directory lists all 97.

Airway, larynx and neck

  • Laryngeal innervation: superior and recurrent laryngeal nerves Anatomy schematic · Primary and Final
  • Larynx: cartilages, joints, muscles and glottis Anatomy schematic · Primary and Final
  • Front of neck: cricothyroid membrane, relations and ultrasound Anatomy schematic · Primary and Final
  • Head and neck surgical relations: thyroid, carotid and facial nerve Anatomy schematic · Final
  • Neck cross-section at C6: relations, fascia and hazards Anatomy schematic · Primary and Final

Head, brain and spinal cord

  • Skull base foramina and their contents Anatomy · Primary and Final
  • Brain herniation, brainstem reflexes and focal lesion localisation Anatomy · Primary and Final
  • Circle of Willis: arteries, territories and variants Anatomy · Primary and Final
  • Spinal cord cross-section: tracts, crossings and lesion patterns Anatomy · Primary and Final

Plexuses and regional anaesthesia sonoanatomy

  • Brachial plexus: roots to terminal branches, variants and injury patterns Anatomy schematic · Primary and Final
  • Cervical plexus blocks (superficial, intermediate, deep): sonoanatomy at C4 Sonoanatomy · Final
  • Interscalene block window: sonoanatomy and the phrenic nerve Sonoanatomy schematic · Primary and Final
  • Supraclavicular block window: subclavian artery, first rib and pleura Sonoanatomy schematic · Primary and Final
  • Lumbar plexus: roots, psoas relations, branches and territories Anatomy schematic · Primary and Final
  • Ankle block: five nerves and their windows Sonoanatomy schematic · Primary and Final

Spinal nerves and the neuraxis

  • Spinal nerve: roots, ganglion, rami and sympathetic connections Anatomy · Primary and Final
  • Conus, dural sac and surface landmarks: lumbar neuraxis in sagittal view Anatomy · Primary and Final
  • Neuraxial functional levels: sympathetic, cardioaccelerator and visceral pathways Anatomy schematic · Primary and Final
  • Epidural space: boundaries, contents and lumbar versus thoracic Anatomy · Primary and Final
  • Neuraxial ultrasound: views and counting levels Sonoanatomy · Primary and Final

Thorax and vascular access

  • Thoracic inlet and first rib: relations, pleural dome and thoracic outlet Anatomy · Primary and Final
  • Typical rib: features, joints, costal groove and pleural relations Anatomy · Primary and Final
  • Pleura, recesses and the safe triangle for chest drains Anatomy · Primary and Final
  • Internal jugular vein: course, relations and ultrasound-guided cannulation Anatomy and sonoanatomy · Primary and Final
  • Central venous catheter tip position, malposition pathways and confirmation Anatomy schematic · Primary and Final

Heart, focused echo and lung ultrasound

  • Focused echo: parasternal long- and short-axis views Sonoanatomy · Primary and Final
  • Focused echo: apical four-chamber, subcostal and IVC views Sonoanatomy · Primary and Final
  • Lung ultrasound in pneumothorax: sliding, A-lines, barcode and lung point Sonoanatomy schematic · Primary and Final
  • Congenital shunts, cyanotic physiology and Eisenmenger syndrome Anatomical schematic · Primary and Final
  • Left-sided valve lesions: anatomy and pressure–flow consequences Anatomical schematic · Primary and Final
  • Coronary arteries: origins, course, dominance and territories Anatomy · Primary and Final

Obstetric anatomy

  • Aortocaval compression and uterine displacement Anatomy schematic · Primary and Final
  • Pregnancy: neuraxial and airway anatomical changes Anatomy schematic · Primary and Final
Published visuals

What a GAG visual looks like

Vagus, superior laryngeal and recurrent laryngeal nerves on both sides, anterior view.
Laryngeal innervation: superior and recurrent laryngeal nerves. Laryngeal innervation as a labelled schematic: the relations that matter, not a photograph. Select the image to enlarge it.

Frequently asked questions

Are these anatomical drawings or photographs?

Neither: they are simplified schematics. Each shows the structures and relations that matter for understanding and explaining a topic, and leaves out detail that does not. They are not to scale and are labelled as schematics.

Can GAG replace an anatomy atlas or ultrasound practice?

No. GAG helps you understand and recall key relations and explain them. Keep using atlases, prosection, hands-on ultrasound scanning and supervised clinical teaching for anatomy and regional anaesthesia.

Do the sonoanatomy schematics show real ultrasound images?

No. The sonoanatomy items are drawn schematics of the ultrasound view, showing what to identify and where, with depth and orientation marked. They are not ultrasound images.

How do I practise labelling?

Use Reveal labels on a labelled diagram: try naming each structure first, then reveal its label to check. Then sketch the diagram from memory and compare.

Continue: Graphs & Science · Guidelines & Tables · GAG overview

GAG comes with full access to every course

GAG is included in Primary Written, Primary Practical, Final Written and Final Practical, with exam-focus prompts for each.

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