LE2

• Identify: organ in focus. Be specific. (Image A): pylorus

  Identify: organ in focus. Be specific. (Image B): jejunum

  Plicae circulares are characteristic features of A. T/F: false

  Rugae are characteristic features of B. T/F: false

  
• Identify: structure being pointed by the red arrow: bile duct

  Identify: structures being pointed by the blue arrow: arteriole

  Based on the relationship of hepatic structure and function where A&B would constitute the center of a liver lobule, what liver lobule would that be?: portal lobule

  Based on the relationship of hepatic structure and function where A&B would constitute the center of a liver lobule, what liver function would that be?: bile flow

  
• Identify: organ in focus: trachea

  Identify: part (name the specific type of tissue) being pointed (red arrow): hyaline cartilage

  Characterize the mucosal epithelium of A: pseudostratified ciliated columnar epithelium

  Name: outermost layer of A: serosa

  
• Identify: organ in focus: pancreas

  Identify: structures being pointed by the red arrows in the magnified view: pancreatic acinar cells

  What is the secretory product of B?: lipases or phospholipases or ribonucleases

  Give one exocrine function of A: secretes digestive enzymes

  
• Identify: part occupied by the red arrow: nasal cavity

  Characterize the epithelial lining indicating by the black arrow: olfactory epithelium

  Identify: structure occupied by the blue moon: concha or turbinate bone

  Give the MOST distinct difference of B from epithelial lining of the trachea: without goblet cells

  
• Identify: organ in focus (be specific as go part/region/segment - see magnified image in HPO): cardiac region of stomach

  Give the most evident justification for your answer in A: pits are shallow

  Name: the large, abundant eosinophilic cells in the glands: parietal cells

  Name: the basophilic cells lining the glands: chief or zymogen cells

  
• Serves as liver’s lymphatic capillaries: Space of Disse

  Cells that secrete bicarbonate-rich fluid: centroacinar cells

  Contractile cells between basal lamina and epithelial cells of adenomeres and ducts: myoepithelial cells

  Cells that are larger, acidophilic with foamy or spongy cytoplasm: mucous cells
• Identify: organ in focus (check magnified image and pointed structure) be specific: ileum

  Give characteristic histological feature of A (hint: one pointed): lots of Peyer’s patches

  Identify: layer where B are found: submucosa

  Identify: outermost layer of the tissue section in focus: serosa

  
• Identify: region pointed (red arrow): recto-anal junction

  Characterize mucosal epithelium to the right of the pointer: stratified squamous

  Characterize mucosal epithelium to the left of the pointer: simple columnar epithelium

  Name the dense network of blood vessels characteristic of the mucosa of this region: internal hemorrhoidal plexus

  
• Identify the specific organ-tissue in specimen A: fundus

  Identify the structures indicated by the blue-colored bars in specimen A: tubular glands

  Identify the specific organ-tissue in specimen B: pylorus

  The structures indicates by red arrows in specimen B: gastric pits

  
• Identify: organ in focus (be specific as to what region of the organ): upper esophagus

  Identify: layer being pointed (occupied by the pointer): submucosa

  Identify: type of muscle seen in focus: skeletal muscle

  Identify the outermost layer of this specific region organ in focus: adventitia

  
• Identify: organ in focus: tongue

  Identify: structure being pointed(red arrow - encircled, see magnified figure) be specific: filiform papillae

  Characterize mucosal epithelium of A: stratified squamous

  Name the glands present in A: von Ebner’s glands

  
• Identify: organ in focus: gallbladder

  Identify: indented spaces being pointed: diverticulum

  Characterize mucosal epithelium of A: simple, tall, columnar epithelium

  Function of A: store bile

  
• Identify: organ in focus (be specific - see magnified image in LPO): fundus

  Give most evident justification for your answer in A:pits are relatively deeper than cardiac region

  Name: the predominant type of gland cells in the glands of A: chief or zymogenic cells

  Name: the most distinguishing feature of the muscularis externa of this organ-tissue in focus: oblique muscle layer

  
• Identify: indicated by the black arrow heads. Image A: olfactory nerves

  Identify: part occupied by red arrow. Be very specific. Image B: elastic cartilage

  Identify: indicated by the black arrow heads. Image B: seromucous glands

  Identify: indicated by the purple arrow heads. Image B: stratified squamous

  
• Identify: organ in focus: liver

  Name the cells that make up this organ (one being pointed): hepatocyte

  Identify: the fixed macrophages present in the endothelial walls around B: Kupfer cells

  Give the main exocrine function of A: secretes bile

  
• Identify: organ in focus (be specific as to what part/region/segment of the organ): duodenum

  Identify: layer occupied by the arrow: submucosa

  Give the BEST distinguishing histologic feature of A: presence of Brunner’s glands

  Characterize the type of mucosal epithelium in/of A: simple columnar

  
• Identify: organ-tissue in focus (be specific - see magnified picture in LPO): large intestine

  Identify: part/layer being pointed in red arrow (be specific): circular smooth muscle

  Identify: immediately inner to B: submucosa

  Identify: immediately inner to C: longitudinal smooth muscle

  
• Identify: organ in focus. Be specific as to what part/region/segment of the organ: jejunum

  Identify: structure traversed by the arrow: villi

  Name: the glands (as seen) in this issue: crypts of Lieberkhun

  What are paneth cells for?: secretes HCL

  
• Identify: organ in focus: appendix

  Identify: structure being pointed (red arrow): lymphatic nodules

  Characteristic feature of the columnar lining epithelium (see HPO image): with goblet cells

  Crypts of Lieberkhun a fewer in A than in colon. T/F: true

  
• Identify: organ being pointed: respiratory bronchiole

  Characterize epithelial lining of A: low columnar to cuboidal epithelium

  A directly empties into/directed into: alveolar duts

  Compare and contrast trachea from intrapulmonary bronchus: trachea with C-shaped cartilage

  
• Identify: organ-tissue in focus (Image A): parotid gland

  Identify: organ-tissue in focus (Image B): sublingual gland

  Identify: structure being pointed (Image A): serous acini

  Identify: structure being pointed (Image B): intralobular duct

  
• Identify: the whole specimen in A: gastro-esophageal junction

  Identify: the whole specimen in B: epiglottis

  Identify: the whole specimen in C: recto-anal junction

  Identify: the whole specimen in D: lower esophagus

  What is the BEST distinct similarities among these specimens: stratified squamous epithelium

  
• The specimens are labeled image X and Image Y.

  Use the two items to answer. Write the item number only.

  1.image X only 2. Image Y only 3. both images X&Y 4. Neither X nor Y

  has cartilage plates: 4

  it is a respiratory portion: 4

  It is a conducting portion: 3

  predominantly low cuboidal cell with rare goblet cells: 2

  identify: organ within red circle in image X: large bronchiole

  
• Identify: structure traversed by the arrow: alveoli

  Identify: specific type of cells/tissue lining A: simple squamous

  Name 2 types of specialized cells necessary for function of A: type I, type II or clara cells, dust cells