Normal Body: Slide Comparison and Organ Identification Tips
Explore the differences between two slides, grasp essential organ identification techniques, and learn key features of various body structures. Get ready for an in-depth study of the body's architecture and cellular components. Seek early help to excel in your learning journey and avoid setbacks in mastering molecular and cellular materials.
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Presentation Transcript
Welcome to Normal Body By the end of the course you ll be able to distinguish the two following slides in a glance.
NB_Rev 065 NB_Rev 065
Welcome to Normal Body Yes, they are two different organs. Scared? You should be (but only a little bit). You no longer have to justify anything covered in Molecules & Cell. For example, you can say you see a plate of hyaline cartilage, but don t have to describe it or justify why it s hyaline cartilage. (There isn t any in the previous slides.) You will spend much more time at low magnification examining the overall architecture, while sporadically swooping in at high mag to identify tissue types. Exam questions are worth more, 10-15 points each. Final is cumulative! Ever hear the phrase drinking from a fire-hose? You reallydon t want to get behind in this class. Some math: 0.8 x 0.8 = 0.64 = Fail. If you learned 80% of the Molecules and Cells material, and continue that trend, you risk failing Normal body. You must go back and master 100% of the M&C materials. Any of the instructors will be happy to schedule one-on-one time with you if you are having trouble. Seek help early, rather than later.
Key to Organ ID Solid (Compact) Organ? OR Hollow Organ (i.e. a Tube)? Cortex/Medulla present? Describe Layering (GI or not?) Describe architecture/arrangement Ascini, follicles, tubules, layered? Describe epithelium Describe epithelium Describe organ-specific cell types Describe organ-specific cell types Describe organ-specific structures Describe organ-specific structures Note key identifying features, And region of organ Note key identifying features, And region of organ
Tube, GI Layering: Serosa, Muscularis externa, Submucosa, Mucosa Mucosa: villi and crypts, lamina propria and musc. mucosae Simple columnar epithelium of enterocytes with brush border, and occasional goblet cells, and Paneth cells in crypts Submucosa: dense irregular CT, BVs, Meisner s plexus, mucous glands (Brunner s = key feature) emptying into crypts M. externa: inner circular, outer long., Auerbach s plexus between layers Serosa = simple squamous epi. Example Identification Tube, GI Layering: Serosa, Muscularis externa, Submucosa, Mucosa Mucosa: Large-bore pits leading to narrow, coiled tubular glands, lamina propria and musc. mucosae Simple columnar epithelium of mucous surface cells Only mucous cells = cardiac region Parietal and chief cells = corpus/fundus Mostly mucous, few parietal = pyloric Submucosa: dense irregular CT, BVs, Meisner s plexus M. externa: 3 poorly-defined layers Auerbach s plexus between layers Serosa = simple squamous epi. ID: Duodenum (Brunner s glands) Or: Illeum ( if Peyer s patches present) Or: Jejunum or illeum (no Peyer s patches, no Brunner s glands) ID: Stomach (include region)
