TUBERCLE 



1552 



TUBERCLE 



on the hands of dissectors. It is also called neurogenic 

 verruca. Ts., Anterior Pair of, the anterior pair of 

 the corpora quadrigemina. T., Anterior (of a ver- 

 tebra), a tubercle at the anterior part of the extremity 

 of the transverse process of certain vertebrae. T., 

 Anterior (of the atlas), a protuberance upon the ven- 

 tral arch of the atlas at the meson. T., Anterior 

 (of the calcaneum), a prominence on the anterior 

 inferior surface of the os calcis. T., Anterior 

 (of the optic thalamus), a rounded prominence of 

 the thalamus at its anterior extremity. T., An- 

 terior (of the vagina), a rough eminence at the 

 upper part of the vaginal orifice, behind the meatus 

 urinarius. T., Black, a synonym of Melanosis. T. 

 of the Calcaneum, a tubercle on the external surface 

 of the os calcis. T., Carotid, a prominence of the 

 sixth cervical vertebra on the anterior part of its trans- 

 verse process. T., Conoid, a broad projection of the 

 clavicle on its posterior border at the union of its middle 

 and outer thirds, to which is attached the conoid liga- 

 ment. T. of the Cuboid, a tubercle on the plantar 

 surface of the cuboid bone, also called the tuberosity 



Diagram of the Minute Structure of Tubercle. 



of the cuboid. T., Cuneate, of Schwalbe, a promi- 

 nence on the cuneate fasciculus. T., Cuneiform. 

 See T., Painful. T., Deltoid, a projection on the 

 anterior border of the clavicle, giving origin to apart of 

 the deltoideus. T., External, the outermost of the 

 three tubercles on the transverse process of some of 

 the dorsal vertebras. T., External Supracondyloid, 

 the projection at the lower end of the femur on the 

 outer portion of its posterior surface, giving rise to the 

 plantaris muscle. T. of the Femur, a tubercle on the 

 neck of the femur, on the anterior surface near its 

 junction with the trochanter major. T., Fibrous, a 

 tubercle which has been modified by the formation 

 of connective tissue within its structure. Ts., Genial, 

 double pairs of tubercles on each side of the middle 

 line on the inner surface of the lower maxilla. 

 T., Genital, the rudimentary penis or clitoris in 

 the uro-genital region of the embryo in front of 

 the cloaca. T., Gray. See T. , Miliary. T., Gray, 

 of Rolando, a prominence between the prolongation 

 of Burdach's column and the postero-lateral groove. 

 T., Greater (of the humerus'), the greater tuberosity. 

 T., Hyaline, a miliary tubercle the reticulum of 

 which has undergone hyaline degeneration. T., 

 Inferior, the lowest of the three tubercles at the 

 extremity of some of the dorsal vertebra. T., In- 

 ferior Obturator, a projection on the pubic margin 

 of the obturator foramen. T., Infraglenoid, a 

 prominence from which arises the long head of the 



triceps, below the glenoid cavity of the scapula. T., 

 Internal, the innermost of the three tubercles at the 

 extremity of some of the dorsal vertebrae. T., In- 

 ternal Supracondyloid, a prominence from which 

 arises the internal head of the gastrocnemius, on the 

 posterior and inner surface of the lower end of the 

 femur. T., Intravascular, a prominence on the intima 

 of a blood-vessel. T., Jugular, a ridge near the outer 

 wall of the anterior condyloid foramen on the inner sur- 

 face of the occipital bone. T., Lacrymal, the small 

 papillary prominence at the margin of the eyelid, and 

 in the center of which is the punctum lacrymalia. 

 Ts., Leprous, the tubercles found in tubercular lep- 

 rosy. T., Lesser (of the humerus), the lesser tuber- 

 osity. T. of Lower, a small eminence on the wall of 

 the right auricle, between the orifices of the pre-cava 

 and inferior post-cava. T., Lymphoid. See under 

 Tuberculosis. T., Mammillary. See Corpora mam- 

 miliaria. T., Miliary, a small, globular tubercle in 

 the stroma of an organ, showing microscopically 

 giant-cells in the center, next smaller cells, and round 

 cells like leukocytes at the periphery. Ts. of Mont- 

 gomery, the prominences on the surface of the areola 

 of the nipple ; they are formed by the sebaceous glands. 

 T., Mucous. See Mucous Patch. T., Nuchal, the 

 spinous process of the seventh cervical vertebra. 

 T., Olfactory. See Bulb, Olfactory. T., Painful, 

 a painful tubercle in the subcutaneous tissue in 

 the region of the joints ; the nature of the affection is 

 uncertain. T., Papillary (of the liver), a projection 

 of the lobulus spigelii into the transverse fissure. Ts., 

 Pearly, milium; small, whitish, non-inflammatory ele- 

 vations situated in the upper part of the corium. T., 

 Pharyngeal, the pharyngeal spine. Ts., Pisiform, 

 the corpora mammillaria. T., Plantar, a tubercle on 

 the first metatarsal bone ; it gives attachment to the 

 tendon of the peroneus longus. Ts., Posterior Pair 

 of, the posterior tubercles of the corpora quadrigemina. 

 T., Posterior (of a vertebra), a tubercle at the pos- 

 terior end of the lumbar and several of the thoracic ver- 

 tebrae. T., Posterior (of the atlas), a tubercle on the 

 dorsal arch of the atlas; it is situated in the median 

 line on the external surface. Sometimes it is replaced 

 by a depression with an elevated rim. T., Posterior 

 (of the optic thalamus), a tubercle on the ventricular 

 surface of the thalamus, toward the posterior end. 

 T., Pterygoid, a tubercle on the inner surface of the 

 inferior maxilla ; it gives attachment to the internal 

 pterygoid muscle. T., Quadrigeminal. See 

 Posterior Pair of. T. of the Radius, the bicipital 

 tuberosity of the radius. T., Retrograde, a tuber- 

 cle that has undergone calcification. T. of a Rib, 

 a tubercle on a rib, articulating with the transverse 

 process of a vertebra. Ts. of Rolando, rounded 

 masses close under the surface of the lateral columns 

 of the oblongata, formed by the enlarged dorsal 

 horns of the gray matter. T. of Santorini, a small 

 eminence on the mucous surface of the larynx, due to 

 the cartilage of Santorini. T., Scalene, a tubercle on 

 the first rib ; it gives attachment to the anterior scalene 

 muscle. T. of the Scaphoid Bone, a projection on 

 the outer surface of the bone which gives attachments 

 the annular ligament. T., Secondary, a tubercle 

 that sometimes follows the breaking down of a caseous 

 mass, as in catarrhal pneumonia. T., Superior Ob- 

 turator, a tubercle on the margin of the obturator fora 

 men. T., Supraglenoid, a tubercle above the glenoid 

 fossa of the scapula; it gives attachment to the long 

 head of the biceps. T. of the Thyroid Cartilage, a 

 tubercle on the outer surface of the ala of the thyroid 

 cartilage, at the posterior end of the upper margin. T. 

 of the Tibia, the tuberosity on the anterior surface of 



