LP-I-1.jpg Read the Additional notes /KEY for some of the st…

LP-I-1.jpg Read the Additional notes /KEY for some of the structures in question:  D: pertains to the whole structure E: pertains to the bridging region F: pertains to the bead-shaped whitish structure G: pertains to the outer layer H: pertains to the middle region I: pertains to the light-colored structures J: pertains to the darker-colored structures