Fig. 145. Back shewing Nerves, Arteries and Lymphatic Glands. 



The Skin and Superficial Fascia have been removed from the whole dorsal aspect, 



extending from Occiput to Sacrum. On the right side the Trapezius, Latissimus 



Dorsi, Superficial Layer of Lumbar Aponeurosis, Supra- and Infra-Spinatus Fascia 



wit/i the attachment of the Splenius Capitis Muscle have been cleared aivay. 



This figure is purposed to shew those lymphatic glands of the back which 

 are little known and which receive but scant attention. 



1. Muscles and Nerves. Trapezius Muscle with Spinal Accessory (Xlth 

 Cranial) Nerve running almost vertically downwards, Latissimus Dorsi Muscle with 

 its nerve running obliquely downwards and inwards, Levator Anguli Scapulae and 

 Rhomboid Muscles with branches from the Posterior Thoracic Nerve, Supra- and 

 Infra-spinatus Muscles with the Supra-scapular Nerve, Teres Minor and Deltoid 

 Muscles with the Circumflex Nerve, Teres Major Muscle, Subscapular Nerve, 

 Serratus A'lagnus Muscle, Long Thoracic Nerve (of Bell) (v. Figs. 109 and iioj. 



2. Arteries. The Occipital Arter}' (a branch of the External Carotid) be- 

 comes visible, at the attachment of the Sterno-Mastoid and Trapezius, and ramifies 

 over the Occiput. The Posterior Auricular Artery (External Carotid) passes behind 

 the pinna to anastomose with the former. The Transversalis Colli Artery from the 

 Subclavian Arterj' appears in the space between the Levator Anguli Scapulae 

 and Rhomboid Muscles. The Supra-scapular Artery either a direct branch of the 

 Subclavian or a radicle of the Thyreoid Axis or Inferior Thyreoid Artery, 

 accompanies the Supra-scapular Nerve to the Supra- and Infra-spinous Fossae 

 where it anastomoses with the Subscapular Artery from the Axillary. 



More externally the Posterior Circumflex Artery accompanies the Circum- 

 flex Nerve as it winds around the Surgical Neck of the Humerus. In close 

 contiguity to Bell's Nerve is found the Long Thoracic Artery (inconstant). LTpon 

 the Dorsum of the Trunk proper only small arteries are found because the Dorsum 

 of the Trunk like the extensor aspects of the limbs receives its blood from the 

 ventral or flexor aspect. 



3. Lymphatic Glands. At the point of emergence of the Occipital 

 Arterj' a few Occipital Glands are found. Behind the Pinna accompanying the 

 Posterior Auricular Artery and 13'ing over the tendinous attachment of the Sterno- 

 Cleido-Mastoid is a posterior Auricular Gland which should be called the Superior 

 Posterior Auricular Gland so as to distinguish it from a deeper gland which lies 

 in contact with the Muscle itself. Deeply situated behind the Mastoid Process, 

 and under cover of the Splenius and close to the Occipital Artery Ues a deep 

 Mastoid Gland (cf. Fig.). 



The subcutaneous glands along the upper border of the Trapezius and near 

 the Vertebral Column are not particularly marked in the figure. They may be 

 called the Superior and Inferior Subcutaneous Nuchal Glands. At the level of the 

 7th Cervical Vertebra lies the Superior Superficial Dorsal Gland; the Inferior Super- 

 ficial Dorsal Gland lies along the outer border of the Latissimus Dorsi at the 

 level of the ist or 2nd Lumbar Vertebra. At the Clavicular Origin of the Deltoid 

 is the Superficial Clavicular Gland, whereas more deeply situated near the Supra- 

 scapular Artery and at the upper border of the Scapula is the Supra-scapular Gland. 



Deep Dorsal Glands are situated at the upper border of the Rhomboid 

 Muscles; on the Teres Major Muscle is seen the posterior superficial Axillary 

 Gland; a deep gland is situated between the Teres Major, Teres Minor and Tri- 

 ceps Muscles. 



These glands are not all constant; they may only be found in pathological 

 conditions; such occurrence does not exclude their normal presence as merely 

 elementary. 



