Flashcards in Epithelium Deck (124)
Rough Endoplasmic Reticulum is responsible for
Protein assembly, secretory granules, ribosomes
packages molecules to vesicles
formed from centrioles with cylindrical microtubules
break down long chain FAs and H2O2
What are microfilaments made of?
What are microtubules made of?
What do chief cells release?
What do parietal cells release?
Gastric acid to change pepsinogen to pepsin
What color do parietal cells stain?
Pink with a dark nucleus (fried egg)
What color do chief cells stain?
Dark and located next to parietal cells
Are pale staining nuclei more or less active than dark staining nuclei?
What organelle stains pink?
What effect does mucus have on the nucleus?
It displaces the nucleus to the edge of the cell and creates a pyramidal cell
What is a defining characteristic of the plasma cell?
The golgi apparatus does not stain and contrasts the nucleus
Why do plasma cells stain blue?
The production of antibodies by ribosomes
What type of microfilaments are in microvilli
How do you determine microvilli under a microscope
It is a shiny brush border
What are cilia made of?
What surface modification is a basal body?
Which is a more active nucleus? Round or elongated?
If a nucleus stains dark, what is it composed of?
Heterochromatic (compressed DNA)
What color does euchromatic nuclei stain?
Lighter than heterochromatic
What are cell inclusions?
Temporary structures that accumulate inside the cell
Name types of cell inclusions
Lipids, crystals, pigment
What causes vacuoles in stains?
Lipids and glycogen don't stain and leave empty spaces
What color does melanin stain?
DNA is jumbled and not separaed