prelims

• 10x is the individual magnification of the eyepiece
• 4x- Scanning Objective

  10x- Low power objective

  40x- high power objective

  100x- oil immersion objective
• Mechanical stage - where the specimen is placed
• stage clips - holds the specimen in place
• iris diaphragm - controls the amount of light
• answer: cytoplasm

  
• nucleus - A double-walled structure containing the cell’s genetic code or DNA
• endoplasmic reticulum - A network of membranous tubes and canals that transports protein
• golgi apparatus - . A stack of flattened sacs that process and packages proteins
• nucleoli - Site of manufacture of ribosomal RNA
• centriole - A cylinder formed by parallel microtubules
• ribosomes - . An organelle that serves as the site of protein synthesis
• lysosome - A bubble containing digestive enzymes
• cell membrane - Allows communication between the internal
• Cilia - hair-like organelles Composed of microtubules Motile; moves mucus/debris
• Flagella – single, hair-like organelle
• Microvilli -Finger-like projections
• interphase - Period between cell divisions; where cells spend most of their time
• Each human cell (except sperm and egg) contains 23 pairs of chromosomes, a total of 46.
• pointed part: basement membrane

  
• the type of epithelium of stomach/intestine - simple columnar
• the type of epithelium of vagina/mouth - non-keratinized stratified squamous
• the type of epithelium of urinary bladder and ureters - transitional epithelium
• the type of epithelium of skin - keratinized stratified squamous
• the type of epithelium of lungs (alveoli) - simple squamous
• the type of epithelium of kidney tubules - simple cuboidal
• 1st: adipocyte

  2nd: stored lipids

  3rd: nucleus and cytoplasm

  
• type of cartilage: Hyaline cartilage

  
• type of cartilage: fibrocartilage

  
• type of cartilage: elastic cartilage

  location: external ears, epiglottis, auditory tubes

  
• what is the specimen: common bile duct

  what is pointed in the specimen: blood vessels

  lining epithelium: simple squamous epithelium

  
• what is the specimen: common bile duct

  function: carries the bile from the liver and gallbladder through the pancreas into the small intestine

  lining epithelium: simple columnar epithelium

  
• what is the specimen: Fallopian tubes

  function: passageway for egg and sperm to meet to make way to uterus

  lining epithelium: simple columnar epithelium

  
• what is the specimen: ovary

  function: produce eggs for fertilization

  lining epithelium: simple cuboidal epithelium

  
• what is the specimen: mesentery

  function: attaches intestines to the wall of abdomen

  lining epithelium: simple squamous epithelium

  
• what is the specimen: pancreas

  part of the specimen: small ducts

  are microvilli and cilia present: No

  lining epithelium: simple cuboidal epithelium

  
• what is the specimen: pancreas

  part of the specimen: large duct

  lining epithelium: cuboidal or columnar epithelium

  
• What is the specimen: small intestine

  function: break down food and absorb nutrients

  what type of cells have clusters of granules: goblet cells

  secretes: mucus

  lining epithelium: simple columnar epithelium

  
• what is the specimen: small intestine

  surface specialization: microvilli

  purpose of the surface specialization: increase surface area for absorbing nutrients

  
• Name of specimen: skin

  function: covers the body for protection

  lining epithelium: stratified squamous epithelium keratinized