pediagenosis: BackSpinalCord
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Showing posts with label BackSpinalCord. Show all posts
Showing posts with label BackSpinalCord. Show all posts

Thursday, December 6, 2018

Typical Thoracic Spinal Nerve: Cross Section Anatomy

Typical Thoracic Spinal Nerve: Cross Section Anatomy


Typical Thoracic Spinal Nerve: Cross Section Anatomy
External intercostal muscles, Internal intercostal muscles, Innermost intercostal muscles, Anterior branch, Posterior branch, Lateral cutaneous branch, Anterior cutaneous branch, Medial branch Lateral branch, Sternum, Transversus thoracis muscle, External intercostal membrane, Intervertebral foramen, Anterior root
Lumbar Region of Back: Cross Section Anatomy

Lumbar Region of Back: Cross Section Anatomy


Lumbar Region of Back: Cross Section Anatomy
Abdominal aorta, Inferior vena cava, Pancreas, Anterior longitudinal ligament, Crura of respiratory diaphragm, Superior mesenteric artery and vein, Mesentery, Duodenojejunal junction, Body of, L2 vertebra, Psoas major muscle and fascia, Lumbar spinal nerve, Transverse process, Spinal dura mater, Cauda equine, Spinous process of L1 vertebra,

Wednesday, November 7, 2018

Suboccipital Triangle Anatomy

Suboccipital Triangle Anatomy


Suboccipital Triangle Anatomy
Epicranial aponeurosis, Occipital belly of occipitofrontalis muscle, Greater occipital nerve (medial branch of posterior ramus of C2 spinal nerve), Occipital artery, Posterior auricular artery, Great auricular nerve (cervical plexus C2, 3), Lesser occipital nerve (cervical plexus C2, 3), Sternocleidomastoid muscle, Trapezius muscle, Splenius capitis muscle (cut), Semispinalis capitis muscle (cut), Semispinalis cervicis muscle, Splenius cervicis muscle C2 vertebra, Longissimus capitis muscle, Splenius capitis muscle (cut and reflected)
Nerves of Back Anatomy

Nerves of Back Anatomy


Nerves of Back Anatomy
Accessory nerve (CN XI), Trapezius muscle (reflected), Levator scapulae muscle, Superficial branch of transverse cervical artery, Supraspinatus muscle, Spine of scapula, Infraspinatus fascia, Rhomboid minor muscle, Rhomboid major muscle, Spinous process of, T12 vertebra, Gluteus maximus muscle, Latissimus dorsi muscle, Thoracolumbar fascia, Iliac crest, External abdominal oblique muscle, Superior lateral brachial cutaneous nerve (from axillary nerve C5, 6), Infraspinatus fascia, Lesser occipital nerve, Great auricular nerve
Muscles of Back: Deep Layer Anatomy

Muscles of Back: Deep Layer Anatomy


Muscles of Back: Deep Layer Anatomy
Superior nuchal line of skull, Mastoid process, Posterior tubercle of atlas (C1 vertebra), Spinous process of axis (C2 vertebra), Semispinalis capitis muscle, Semispinalis cervicis muscle, Spinous process of C7 vertebra, External intercostal muscles, Semispinalis thoracis muscle, Multifidus thoracis muscles, Thoracolumbar fascia (anterior layer)
Muscles of Back: Intermediate Layer Anatomy

Muscles of Back: Intermediate Layer Anatomy


Muscles of Back: Intermediate Layer Anatomy
Iliocostalis muscle, Longissimus muscle, Spinalis muscle, Serratus posterior superior muscle, Splenius capitis and splenius cervicis muscles, Superior nuchal line of skull, Posterior tubercle of atlas (C1), Longissimus capitis muscle, Semispinalis capitis muscle, Serratus posterior inferior muscle, Tendon of origin of transversus abdominis muscle, Internal abdominal oblique muscle, External abdominal oblique muscle (cut), Iliac crest
Muscles of Back: Superficial Layer Anatomy

Muscles of Back: Superficial Layer Anatomy


Muscles of Back: Superficial Layer Anatomy
Superior nuchal line of skull, Spinous process of C2 vertebra, Sternocleidomastoid muscle, Posterior triangle of neck, Trapezius muscle, Spine of scapula, Deltoid muscle, Infraspinatus fascia, Teres minor muscle, Teres major muscle, Latissimus dorsi muscle, Thoracolumbar fascia, Iliac crest, External abdominal oblique muscle, Internal abdominal oblique muscle in lumbar triangle (of Petit), Spinous process of T12 vertebra
Veins of Vertebral Column: Vertebral Veins Anatomy

Veins of Vertebral Column: Vertebral Veins Anatomy


Veins of Vertebral Column: Vertebral Veins Anatomy
Superior bulb of right internal jugular vein, Condylar emissary vein, Mastoid emissary vein, Venous plexus around vertebral artery, Communicating veins, Right deep cervical vein, Accessory vertebral vein, Dorsal scapular artery, Costocervical trunk, Right thyrocervical trunk, Right subclavian vein, Right internal jugular vein (inferior bulb)

Right subclavian artery, Right brachiocephalic vein, Vertebral arteries, Dura mater, Anterior internal (epidural) vertebral venous plexus, Anterior external vertebral venous plexus, Anterior vertebral veins, Left deep cervical vein, Left vertebral vein, Left vertebral artery, Left thyrocervical trunk, Left internal jugular vein (inferior bulb), Left subclavian artery, Left common carotid artery, Left brachiocephalic vein, Right vertebral artery and vein, Right common carotid artery, Left subclavian vein.

Veins of Vertebral Column: Vertebral Veins Anatomy


Tuesday, October 9, 2018

Veins of Spinal Cord and Vertebral Column Anatomy

Veins of Spinal Cord and Vertebral Column Anatomy


Veins of Spinal Cord and Vertebral Column Anatomy
External vertebral venous plexus, Internal vertebral (epidural) venous plexus (Batson’s veins), Basivertebral vein, Anterior spinal vein, Anterior sulcal (central) vein, Basivertebral vein, Internal vertebral (epidural) venous plexus, Intervertebral vein, Anterior segmental medullary/radicular vein, Posterior segmental medullary/radicular vein, Internal vertebral (epidural) venous plexus, Posterior spinal vein, Posterior sulcal (central) vein, Pial venous plexus, External vertebral venous plexus.
Arteries of Spinal Cord: Intrinsic Distribution Anatomy

Arteries of Spinal Cord: Intrinsic Distribution Anatomy


Arteries of Spinal Cord: Intrinsic Distribution Anatomy
Posterior spinal arteries, Anterior spinal artery, Segmental medullary artery, Posterior radicular artery, Branch to vertebral body and dura mater, Spinal branch, Dorsal branch of posterior intercostal artery, Posterior intercostal artery, Paravertebral anastomoses, Prevertebral anastomoses, Thoracic (descending) aorta, Right posterior spinal artery, Peripheral branches from pial plexus Sulcal (central) branches to left side of spinal cord, Left posterior spinal artery.
Arteries of Spinal Cord: Schema Anatomy

Arteries of Spinal Cord: Schema Anatomy


Arteries of Spinal Cord: Schema Anatomy
Posterior cerebral artery, Superior cerebellar artery, Basilar artery, Anterior inferior cerebellar artery (AICA), Posterior inferior cerebellar artery (PICA), Anterior spinal artery, Vertebral artery, Segmental medullary arteries, Ascending cervical artery, Cervical vertebrae, Anterior view Posterior view, Deep cervical artery, Subclavian artery, Segmental medullary artery, Posterior intercostal artery, Thoracic vertebrae, Pial plexus, Posterior intercostal artery, Segmental medullary artery.
Spinal Nerve Origin Cross Sections Anatomy

Spinal Nerve Origin Cross Sections Anatomy


Spinal Nerve Origin: Cross Sections Anatomy
Dura mater, Arachnoid mater, Anterior root, Spinal nerve, Anterior ramus, Posterior ramus, Posterior root (spinal) ganglion, Posterior root, Filum terminale internum Leptomeninges, Posterior and anterior roots of lumbar and sacral spinal nerves forming cauda equine, Gray ramus communicans, Fat in epidural space, Sympathetic ganglion, Section through lumbar vertebra,
Spinal Meninges and Nerve Roots Anatomy

Spinal Meninges and Nerve Roots Anatomy


Spinal Meninges and Nerve Roots Anatomy
Posterior view Anterior root of spinal nerve, Within meningeal sheath Posterior root of spinal nerve, Posterior root (spinal) ganglion, White and gray rami communicantes, Anterior ramus of spinal nerve, Posterior ramus of spinal nerve, Dura mater, Arachnoid mater, Pia mater overlying spinal cord, Rootlets of posterior root, Denticulate ligament, Dura and arachnoid mater removed: anterior view (greatly magnified).
Parasympathetic Nervous System: Schema Anatomy

Parasympathetic Nervous System: Schema Anatomy


Parasympathetic Nervous System: Schema Anatomy
Ciliary ganglion, Branch of oculomotor nerve (CN III), Branch of facial nerve (CN VII), Medulla oblongata, Branch of glossopharyngeal nerve (CN IX), Otic ganglion, Submandibular ganglion, Celiac ganglion, Superior mesenteric ganglion, Pterygopalatine ganglion, Lacrimal glands, Eyes, Parotid glands, Sublingual glands, Submandibular glands, Heart, Stomach, Liver.

Monday, September 17, 2018

Sympathetic Nervous System: Schema Anatomy

Sympathetic Nervous System: Schema Anatomy


Sympathetic Nervous System: Schema Anatomy
Internal carotid nerve and internal carotid plexus, External carotid nerve and external carotid plexus, Lacrimal gland Eye, Parotid gland, Sublingual gland, Submandibular gland, Cardiac branches, Greater splanchnic nerve, Celiac ganglion, Lesser splanchnic nerve, Aorticorenal ganglion, Least splanchnic nerve, Suprarenal gland, Superior mesenteric ganglion, Lumbar splanchnic nerves, Inferior mesenteric ganglion Inferior hypogastric plexus.
Dermatomes Anatomy

Dermatomes Anatomy


Dermatomes Anatomy
Schematic demarcation of dermatomes (according to Keegan and Garrett) shown as distinct segments. There is actually considerable overlap between any two adjacent dermatomes. An alternative dermatome map is that provided by Foerster (see References).
Relation of Spinal Nerve Roots to Vertebrae Anatomy

Relation of Spinal Nerve Roots to Vertebrae Anatomy


Relation of Spinal Nerve Roots to Vertebrae Anatomy
C1 spinal nerve exits above C1 vertebra, Cervical enlargement, Occipital bone, C8 spinal nerve exits below, C7 vertebra (there are 8 cervical nerves but only 7 cervical vertebrae), Lumbar disc protrusion (dashed ovals) does not usually affect nerve exiting above disc. Lateral protrusion at disc level L4–5 affects L5 spinal nerve, not, L4 spinal nerve. Protrusion at disc level L5–S1 affects S1 spinal nerve, not L5 spinal nerve.
Spinal Cord and Anterior Rami Anatomy

Spinal Cord and Anterior Rami Anatomy


Spinal Cord and Anterior Rami Anatomy
Occipital bone, C1 spinal nerve, C2 vertebra (axis), C8 spinal nerve, T1 spinal nerve, 1st rib, Intercostal nerves, T12 spinal nerve, 12th rib, Subcostal nerve, Conus medullaris, L1 spinal nerve, Cauda equine, L5 spinal nerve, S1 spinal nerve, Sacrum (cut away), Filum terminale internum, Termination of spinal dura mater, S5 spinal nerve, Coccygeal nerve, C1 vertebra (atlas), Cervical plexus, C7 vertebra, T1 vertebra, Brachial plexus, Lumbar plexus,
Vertebral Ligaments: Lumbar Region Anatomy

Vertebral Ligaments: Lumbar Region Anatomy


Vertebral Ligaments: Lumbar Region Anatomy
Posterior longitudinal ligament, Nucleus pulposus, Anulus fibrosus, Cartilage end plate, Collagen lamellae of anulus fibrosus, Anterior longitudinal ligament, Intervertebral disc composed of central nuclear zone of collagen and hydrated proteoglycans surrounded by concentric lamellae of collagen fibers, Left lateral view (partially sectioned in median plane), Inferior articular process, Superior articular process, Transverse process, Spinous process, Ligamentum flavum, Interspinous ligament, Supraspinous ligament, Intervertebral foramen, Capsule of zygapophysial joint (partially opened).
Vertebral Ligaments: Lumbosacral Region Anatomy

Vertebral Ligaments: Lumbosacral Region Anatomy


Vertebral Ligaments: Lumbosacral Region Anatomy
Anterior longitudinal ligament, Body of L1 vertebra, Intervertebral discs, Anterior ramus of L2 spinal nerve L4 spinal nerve, Body of L5 vertebra, Posterior ramus of, L5 spinal nerve, Auricular surface of sacrum (for articulation with ilium), Left lateral view, Posterior superior iliac spine, Posterior inferior iliac spine, Lateral, Posterior sacrococcygeal ligaments, Ischial tuberosity.

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