Optical canal
Connects: orbit to the middle cranial fossa.
Location: lesser wing of the sphenoid bone.
Transmits: optic nerve (CN II) and ophthalmic artery.
✕
- Head and Neck
- Dental Anatomy
- Upper Extremity
- Thorax
- Abdomen
- Spine and Back
- Pelvis
- Lower Extremity
- Organ Systems
- Skeletal system
- Skull
- Neurocranium
- Frontal bone
- Sphenoid bone
- Temporal bone
- Ethmoid bone
- Occipital bone
- Parietal bone
- Viscerocranium
- Lacrimal bone
- Nasal bone
- Zygomatic bone
- Palatine bone
- Maxilla
- Inferior nasal concha
- Vomer
- Mandible
- Hyoid bone
- Auditory ossicles
- Sutures of skull
- Topography of skull
- Cranial base
- Internal cranial base
- Anterior cranial fossa
- Middle cranial fossa
- Posterior cranial fossa
- External cranial base
- Temporal fossa
- Infratemporal fossa
- Pterygopalatine fossa
- Orbit
- Nasal cavity
- Paranasal sinuses
- Maxillary sinus
- Frontal sinus
- Sphenoidal sinus
- Ethmoidal air cells
- Skeleton of trunk
- Rib cage
- Ribs
- Sternum
- Thoracic vertebrae
- Spine
- Cervical vertebrae
- Thoracic vertebrae
- Lumbar vertebrae
- Sacrum
- Coccyx
- Skeleton of upper limb
- Bones of shoulder girdle
- Clavicle
- Scapula
- Humerus
- Bones of forearm
- Radius
- Ulna
- Bones of hand
- Carpal bones
- Metacarpal bones
- Phalanges of hand
- Skeleton of lower limb
- Pelvis
- Hip bone
- Pubic bone
- Ischium
- Ilium
- Sacrum
- Coccyx
- Femur
- Patella
- Bones of leg
- Tibia
- Fibula
- Bones of foot
- Tarsal bones
- Talus
- Calcaneus
- Cuboid bone
- Navicular bone
- Cuneiform bones
- Metatarsal bones
- Phalanges of foot
- Joints
- Classification of joints
- Joints of skull
- Sutures of skull
- Joints of lower limb
- Joints of pelvis
- Sacrotuberous ligament
- Sacrospinous ligament
- Obturator membrane
- Pubic symphysis
- Sacroiliac joint
- Hip joint
- Knee joint
- Tibiofibular joints
- Superior tibiofibular joint
- Inferior tibiofibular joint
- Joints of foot
- Ankle joint
- Intertarsal joints
- Talocalcaneonavicular joint
- Calcaneocuboid joint
- Transverse tarsal joint (Chopart's joint)
- Cuneonavicular joint
- Subtalar joint
- Tarsometatarsal joints (Lisfranc's joint)
- Intermetatarsal joints
- Metatarsophalangeal joints
- Interphalangeal joints of foot
- Muscles
- Head muscles
- Facial muscles
- Occipitofrontalis
- Occipital belly of occipitofrontalis
- Frontal belly of occipitofrontalis
- Corrugator supercilii
- Depressor supercilii
- Orbicularis oculi
- Orbital part of orbicularis oculi
- Palpebral part of orbicularis oculi
- Lacrimal part of orbicularis oculi
- Buccinator
- Orbicularis oris
- Mentalis
- Depressor anguli oris
- Depressor labii inferioris
- Levator anguli oris
- Levator labii superioris
- Risorius
- Zygomaticus major
- Zygomaticus minor
- Levator labii superioris alaeque nasi
- Nasalis
- Alar nasalis
- Transverse nasalis
- Procerus
- Depressor septi nasi
- Compressor narium minor
- Dilator naris anterior
- Muscles of mastication
- Temporalis
- Masseter
- Lateral pterygoid
- Medial pterygoid
- Neck muscles
- Superficial neck muscles
- Sternocleidomastoid
- Platysma
- Scalene muscles
- Anterior scalene
- Middle scalene
- Posterior scalene
- Suprahyoid muscles
- Mylohyoid
- Digastric
- Anterior belly of digastric
- Posterior belly of digastric
- Stylohyoid
- Geniohyoid
- Infrahyoid muscles
- Sternohyoid
- Sternothyroid
- Thyrohyoid
- Omohyoid
- Prevertebral muscles
- Longus capitis
- Longus colli
- Rectus capitis anterior
- Rectus capitis lateralis
- Suboccipital muscles
- Rectus capitis posterior minor
- Rectus capitis posterior major
- Obliquus capitis superior
- Obliquus capitis inferior
- Muscles of upper limb
- Muscles of pectoral girdle
- Pectoralis major
- Muscles of shoulder region
- Deltoid
- Teres major
- Rotator cuff
- Supraspinatus
- Infraspinatus
- Teres minor
- Subscapularis
- Muscles of upper arm
- Anterior compartment
- Coracobrachialis
- Brachialis
- Biceps brachii
- Posterior compartment
- Triceps brachii
- Anconeus
- Muscles of forearm
- Anterior compartment
- Pronator teres
- Flexor carpi radialis
- Palmaris longus
- Flexor carpi ulnaris
- Flexor digitorum superficialis
- Flexor digitorum profundus
- Flexor pollicis longus
- Pronator quadratus
- Lateral compartment
- Brachioradialis
- Extensor carpi radialis longus
- Extensor carpi radialis brevis
- Posterior compartment
- Extensor digitorum
- Extensor digiti minimi
- Extensor carpi ulnaris
- Abductor pollicis longus
- Extensor pollicis brevis
- Extensor pollicis longus
- Extensor indicis
- Supinator
- Muscles of hand
- Medial group (Muscles of little finger)
- Abductor digiti minimi of hand
- Flexor digiti minimi brevis of hand
- Opponens digiti minimi of hand
- Palmaris brevis
- Middle group of hand muscles
- Lumbricals of hand
- Palmar interossei
- Dorsal interossei of hand
- Lateral group (Muscles of thumb)
- Abductor pollicis brevis
- Flexor pollicis brevis
- Opponens pollicis
- Adductor pollicis
- Muscles of back
- Superficial back muscles
- Trapezius
- Latissimus dorsi
- Rhomboid muscles
- Levator scapulae
- Intermediate back muscles
- Serratus posterior superior
- Serratus posterior inferior
- Deep back muscles
- Superficial layer
- Splenius capitis
- Splenius cervicis
- Intermediate layer (Erector Spinae)
- Spinalis
- Longissimus
- Iliocostalis
- Deep layer (Transversospinales)
- Rotatores
- Multifidus
- Semispinalis
- Deepest layer
- Interspinales
- Intertransversarii
- Levatores costarum
- Muscles of lower limb
- Pelvic muscles
- Iliopsoas
- Iliacus
- Psoas major
- Psoas minor
- Gluteus maximus
- Gluteus medius
- Gluteus minimus
- Tensor fasciae latae
- Piriformis
- Obturator internus
- Obturator externus
- Superior gemellus
- Inferior gemellus
- Quadratus femoris
- Muscles of thigh
- Anterior compartment
- Quadriceps femoris
- Rectus femoris
- Vastus medialis
- Vastus intermedius
- Vastus lateralis
- Sartorius
- Medial compartment
- Pectineus
- Adductor brevis
- Adductor longus
- Adductor magnus
- Gracilis
- Posterior compartment
- Semimembranosus
- Semitendinosus
- Biceps femoris
- Muscles of leg
- Anterior compartment
- Tibialis anterior
- Extensor hallucis longus
- Extensor digitorum longus
- Lateral compartment
- Peroneus longus
- Peroneus brevis
- Posterior compartment
- Superficial layer
- Triceps surae
- Gastrocnemius
- Soleus
- Plantaris
- Deep layer
- Popliteus
- Tibialis posterior
- Flexor digitorum longus
- Flexor hallucis longus
- Muscles of foot
- Dorsal muscles of foot
- Extensor digitorum brevis
- Extensor hallucis brevis
- Plantar muscles of foot
- Medial group (Muscles of big toe)
- Abductor hallucis
- Flexor hallucis brevis
- Adductor hallucis
- Middle group of foot muscles
- Flexor digitorum brevis
- Quadratus plantae
- Lumbricals of foot
- Plantar interossei
- Dorsal interossei of foot
- Lateral group (Muscles of little toe)
- Abductor digiti minimi of foot
- Flexor digiti minimi brevis of foot
- Opponens digiti minimi of foot
- Heart
- Blood vessels
- Blood vessels of systemic circulation
- Blood vessels of head and neck
- Arteries of head and neck
- Brachiocephalic trunk
- Common carotid artery
- External carotid artery
- Superficial temporal artery
- Maxillary artery
- Inferior alveolar artery
- Mental artery
- Superior thyroid artery
- Lingual artery
- Facial artery
- Inferior labial artery
- Superior labial artery
- Submental artery
- Angular artery
- Ascending pharyngeal artery
- Occipital artery
- Posterior auricular artery
- Internal carotid artery
- Anterior cerebral artery
- Middle cerebral artery
- Ophthalmic artery
- Anterior choroidal artery
- Posterior communicating artery
- Superior hypophyseal artery
- Subclavian artery
- Vertebral artery
- Posterior inferior cerebellar artery
- Basilar artery
- Superior cerebellar artery
- Anterior inferior cerebellar artery
- Posterior cerebral artery
- Thyrocervical trunk
- Inferior thyroid artery
- Ascending cervical artery
- Transverse cervical artery
- Suprascapular artery
- Costocervical trunk
- Deep cervical artery
- Superior intercostal artery
- Veins of head and neck
- Veins of head
- Extracranial veins
- Angular vein
- Facial vein
- Submental vein
- Occipital vein
- Posterior auricular vein
- Superficial temporal vein
- Lingual vein
- Intracranial veins
- Dural venous sinuses
- Cavernous sinus
- Petrosal sinuses
- Sigmoid sinus
- Transverse sinus
- Inferior sagittal sinus
- Superior sagittal sinus
- Straight sinus
- Occipital sinus
- Diploic veins
- Cerebral veins
- Deep cerebral veins
- Superficial cerebral veins
- Ophthalmic veins
- Veins of labyrinth
- Veins of neck
- External jugular vein
- Superior thyroid vein
- Inferior thyroid vein
- Subclavian vein
- Anterior jugular vein
- Internal jugular vein
- Vertebral vein
- Deep cervical vein
- Blood vessels of upper limb
- Arteries of upper limb
- Subclavian artery
- Axillary artery
- Brachial artery
- Radial artery
- Ulnar artery
- Veins of upper limb
- Superficial veins of upper limb
- Cephalic vein
- Basilic vein
- Deep veins of upper limb
- Blood vessels of thorax
- Systemic arteries of thorax
- Ascending aorta
- Left coronary artery
- Right coronary artery
- Aortic arch
- Thoracic aorta
- Parietal branches of thoracic aorta
- Posterior intercostal arteries
- Subcostal artery
- Superior phrenic arteries
- Visceral branches of thoracic aorta
- Bronchial arteries
- Esophageal branches of thoracic aorta
- Systemic veins of thorax
- Superior vena cava
- Azygos venous system
- Azygos vein
- Hemiazygos vein
- Accessory hemiazygos vein
- Blood vessels of abdomen
- Arteries of abdomen
- Abdominal aorta
- Posterior branches of abdominal aorta
- Inferior phrenic arteries
- Lumbar arteries
- Median sacral artery
- Visceral branches of abdominal aorta
- Unpaired visceral branches
- Celiac trunk
- Left gastric artery
- Splenic artery
- Common hepatic artery
- Superior mesenteric artery
- Inferior pancreaticoduodenal artery
- Jejunal and ileal arteries
- Middle colic artery
- Right colic artery
- Ileocolic artery
- Inferior mesenteric artery
- Left colic artery
- Superior rectal artery
- Sigmoid arteries
- Paired visceral branches
- Middle suprarenal arteries
- Renal artery
- Ovarian arteries
- Testicular arteries
- Veins of abdomen
- Portal venous system
- Portal vein
- Inferior vena cava
- Blood vessels of pelvis and lower limb
- Arteries of pelvis and lower limb
- Common iliac artery
- Internal iliac artery
- Middle rectal artery
- Lateral sacral arteries
- Superior gluteal artery
- Umbilical artery
- Uterine artery
- Artery to ductus deferens
- Internal pudendal artery
- Iliolumbar artery
- Inferior gluteal artery
- Inferior vesical artery
- Obturator artery
- External iliac artery
- Inferior epigastric artery
- Deep circumflex iliac artery
- Femoral artery
- Deep femoral artery
- Lateral circumflex femoral artery
- Medial circumflex femoral artery
- Descending genicular artery
- Perforating arteries
- Popliteal artery
- Middle genicular artery
- Sural arteries
- Anterior tibial artery
- Posterior tibial recurrent artery
- Anterior tibial recurrent artery
- Anterior medial malleolar artery
- Anterior lateral malleolar artery
- Dorsalis pedis artery
- Arcuate artery
- Deep plantar artery
- Lateral tarsal artery
- Medial tarsal arteries
- Posterior tibial artery
- Circumflex fibular artery
- Medial malleolar branches
- Peroneal artery
- Lateral plantar artery
- Medial plantar artery
- Veins of pelvis and lower limb
- Common iliac vein
- External iliac vein
- Inferior epigastric veins
- Deep circumflex iliac vein
- Internal iliac vein
- Superficial veins of lower limb
- Great saphenous vein
- Small saphenous vein
- Deep veins of lower limb
- Femoral vein
- Popliteal vein
- Anterior tibial vein
- Posterior tibial vein
- Respiratory system
- Nasal cavity
- Paranasal sinuses
- Maxillary sinus
- Frontal sinus
- Sphenoidal sinus
- Ethmoidal air cells
- Larynx
- Trachea
- Bronchi
- Lungs
- Digestive system
- Oral cavity
- Lips
- Cheeks
- Palate
- Tongue
- Gingiva
- Teeth
- Salivary glands
- Pharynx
- Esophagus
- Stomach
- Duodenum
- Jejunum and ileum
- Cecum and vermiform appendix
- Pancreas
- Liver
- Endocrine glands
- Thyroid gland
- Parathyroid glands
- Adrenal glands
- Pancreas
- Ovaries
- Nervous system
- Central nervous system
- Brain
- Brainstem
- Midbrain
- Pons
- Medulla oblongata
- Spinal cord
- Peripheral nervous system
- Cranial nerves
- Olfactory nerve (CN I)
- Optic nerve (CN II)
- Oculomotor nerve (CN III)
- Trochlear nerve (CN IV)
- Trigeminal nerve (CN V)
- Ophthalmic nerve (CN V1)
- Maxillary nerve (CN V2)
- Mandibular nerve (CN V3)
- Abducens nerve (CN VI)
- Facial nerve (CN VII)
- Vestibulocochlear nerve (CN VIII)
- Glossopharyngeal nerve (CN IX)
- Vagus nerve (CN X)
- Accessory nerve (CN XI)
- Hypoglossal nerve (CN XII)
- Spinal nerves
- Anterior rami of spinal nerves
- Cervical plexus
- Brachial Plexus
- Lumbar plexus
- Femoral nerve
- Saphenous nerve
- Lateral femoral cutaneous nerve
- Genitofemoral nerve
- Obturator nerve
- Iliohypogastric nerve
- Ilioinguinal nerve
- Sacral plexus
- Superior gluteal nerve
- Inferior gluteal nerve
- Pudendal nerve
- Perineal nerve
- Dorsal nerve of penis
- Dorsal nerve of clitoris
- Inferior rectal nerves
- Posterior femoral cutaneous nerve
- Inferior cluneal nerves
- Perineal branches
- Sciatic nerve
- Common peroneal nerve
- Deep peroneal nerve
- Lateral sural cutaneous nerve
- Superficial peroneal nerve
- Tibial nerve
- Medial plantar nerve
- Lateral plantar nerve
- Medial sural cutaneous nerve
- Sural nerve
- Eye
- Eyeball
- Layers of the eyeball
- Fibrous layer
- Sclera
- Cornea
- Vascular pigmented layer
- Choroid
- Ciliary body
- Iris
- Nervous layer
- Retina
- Refractive media of the eyeball
- Lens
- Vitreous body
- Aqueous humor and eye chambers
- Accessory structures of eye
- Eyebrows
- Eyelids
- Conjunctiva
- Lacrimal apparatus
- Lacrimal gland
- Lacrimal canaliculi
- Lacrimal sac
- Nasolacrimal duct
- Extraocular muscles
- Inferior rectus
- Superior oblique
- Medial rectus
- Inferior oblique
- Levator palpebrae superioris
- Superior rectus
- Lateral rectus
- Ear
- External ear
- Auricle
- External acoustic meatus
- Tympanic membrane
- Middle ear
- Auditory ossicles
- Auditory tube
- Tympanic cavity
- Internal ear
- Bony labyrinth
- Vestibule
- Semicircular canals
- Cochlea
- Membranous labyrinth
- Saccule
- Utricle
- Cochlear duct
- Semicircular ducts
- Lymphatic system
- Spleen
- Female reproductive system
- Ovaries
Optical canal
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- Optical canal
- Superior orbital fissure
- Foramen rotundum
- Foramen ovale
- Foramen spinosum
- Foramen lacerum
- Jugular foramen
- Hypoglossal canal
- Carotid canal
- Foramina cribrosa
- Supraorbital foramen
- Infraorbital foramen
- Nasolacrimal canal
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