Absence of lymph node is characteristic of -
(A) (Brain) (178 - IB Singh 4th) (400-Gray's 38th)No lymphatics are found inBrainQChoroidQInternal earQLymph directly drain into blood stream (thoracic duct) without passing through lymph nodeThyro'nfi (some lymph)Largest lymphatic vesselThoracic ductLargest lymphatic organSpleenQPrimary Lymphoid OrgansThymusQBone marrowQSecondary lymphoid organsSpleenQLymplfiEpithelial lymphoid tissue e.g.TonsilsQPyeres patchQORGANDraining Lvmph nodesGians penis and ClitorisDeep inguinal nodes of cloquelQRest of PenisSuperficial inguinal nodesTestis and ovaryPre & para aortic lymph nodesParotid and ThyroidDeep cervical lymph nodesPharynxDeep cervical & retropharyngeal lymph nodesPalatine tonsilJugulo-diagastric lymph nodesTongue TipSubmental lymph nodesAnt 2/3Submandibular lymph nodesPost 173rdJugulo-omohyoid lymph nodesAll finally reach deep cervical lymph nodesUterus & CervixFundus & upper part of bodyMainly to aortic lymph nodesPartly to superficial inguinal lymph nodes alonground ligamentLower part of bodyExternal iliac lymph nodesCervixExternal iliac lymph nodesInternal iliac lymph nodesSacral lymph nodesSupra renal glandLateral Aortic Lymph NodesRectum & Anal Canal above pectinate lineInternal iliac lymph nodesAnal canal below pectinate lineSuperficial inguinal lymph nodes High Yield Points1.Esophagus is lined by - stratified squamous non-keratinized epitheliumCiliated columnar epithelium - uterus and fallopian tubes, eustachian tube, respiratory epithelium2.Mastoid antrum corresponds to the suprameatal triangle, seen on the outer surface the temporal bone3.Labourer's nerve - median nerve, musician's nerve - ulnar nerve (froment's singn) - book test4.I. Tracheal bifurcation - lower border of t4II. Arch of aorta - begins and ends at t4III. Carotid bifurcation, hyoid bone - c3IV. Termination of spinal cord - lower border of lj in adults and upper border of 13 in newbornV. Aortic bifurcation - 145.Chorda tympani is a preganglionic parasympathetic nerve for submandibular parasympathetic ganglion.6.I. Renal angle: between the lower border of the 12th rib and the outer border of the erector spinaeII. Sternal angle (angle of louis): second costal cartilage joins to sternum at this levelIII. Citelle's angle (sinodural angle): situated between the sigmoid sinus and middle fossa dura plate7.I. Coracoclavicular ligament: transmits weight of upper limb to axial skeleton (mainly clavicle).II. Ilio-femoral/bigelow ligament:1. Strongest ligament in the body2. Prevents trunk from falling backward3. Prevents hyper-extension of hip joint standingIII. Pubofemoral ligament: prevents overabduction of hip jointIV. Phrenico-colic ligament: support anterior end of spleen & prevents its downwards displacementV. Linorenal ligament: contains splenic vessels & tail of pancreas8.Epophoron also called organ of rosenmullar is a remanant of mesonephric tubule9.* All intrinsic muscles of the tongue are supplied by the hypoglossal nerve except palatoglossus, which is supplied by the vagoaccessory complex* Genioglossus is the safety muscle of the tongue as it protrudes the tongue and prevents it from falling back.10.I. Pyramidal cells: cerebral cortex, hippocampus, amygdalaII. Fusiform cells: motor cortex of cerebral hemisphereIII. Pyriform, golgi, purkinje, granule, stellate, basket cells - cerebellumIV. Amacrine cells - retinaV. Purkinje cells are the only output of the cerebellar cortex11.Blood testis barrier - tight junction between endothelial cells plus sertoli cellsBlood brain barrier - tight junction between endothelial cells and some reinforcement by foot process of astrocytes12.Hemiazygous pierces left crus of the diaphragm ascend on the left side of the vertebrae and at the 8th thoracic vertebrae it crosses and joins the azygous veins.13.Sequestration of lung - most frequently seen in lower lobe of the left lung.The sequestrated lung tissue derives it blood supply from an abnormal branch of the aorta.14.1. Pressure epiphysis* Head of femur* Condyles of tibia* Lower end of radius2. Traction epiphysis* Trochanteric femur* Tubercle of humerus* Mastoid process3. Atavistic epiphysis* Coracoid process of scapula* Posterior tubercle of talus* Os. Trigonum4. Aberrant epiphysis* Head of first metacarpal* Base of other metacaipal
Brain
Liver
Lung
Placenta
General