The KIDNEY External Supportive Tissue 1). Renal Capsule 2). Adipose Capsule 3). Renal Fascia. Kidney consist of 2 major parts 1. cortex- outer part, contains numerous glumeroli - Glomeruli- surrounded by tubules - distal convoluted tubule- - proximal convoluted tubule- have lumens 2. medulla- medulla Nephrons : A). Structure 1). Renal Corpuscle: a). Glomerulus b). Glomerular (Bowmans) Capsule Renal Tubule i). Proximal Convoluted Tubule ii). Loop of Henle descending limb ascending limb iii). Distal Convoluted Tubule iv). Collecting Duct (Not part of the Nephron) receives urine from many nephrons and leads to the renal papilla. kidney medulla cortex t.s rabbit kidney cortex medulla Loop of Henle Ts kidney of rabbit showing glomeruli Bowman s capsule glomerulus Distal convoluted tubules Proximal CT Kidney of rabbit Bowmans capsule glumerulus Testis - surrounded by thick capsule tunica albuginea -contains many seminiferous tubules where sperms are formed (spermatogonia, spermatocytes, spermatids and spermatozoa) - between seminiferous tubules are the interstitial cells that secrete the male hormone Ts testis rabbit Tunica albuginea Seminiferous tubules Lumen of seminiferous tubule testis Ovary - concerned with the production of ova (eggs) - filled with many follicles varying in their sizes and different stages: - Graafian follicles: largest, contain the primary oocytes (ovum) about to ovulate - corpus luteum- forms after ovulation Stages of follicle maturation a). Primordial follicle Only 1 layer of cells b). Primary follicle 2 or more layers of cells. c). Secondary follicle: fluid filled space d). Vesicular (Graafian) follicle: Bulges e). Corpus luteum: The ruptured follicle Ovary General Anatomy 1). Outer cortex 2). Inner medullary region Follicle AnatomyAnatomy i). oocyte ii). follicle cells: 1 layer iii). granulosa cells: more than 1 layer Ts rabbit ovary Tunica albuginea follicles Grafian follicle Primary oocyte/ ovum Enlarge part ovary (rabbit Primordial follicles Tunica albuginea Corpus luteum Ovary ( Name the Parts)