Flashcards in Histology Deck (52):
What is the cytoskeleton made up of?
What are microfilaments made of?
Where do microtubules originate from?
In what direction does kinesin move?
Towards the cell periphery
In what direction does Dynein move?
Towards the cell centre
Where is mRNA and tRNA transcribed?
Where is rRNA transcribed?
What is synthesised in the rough ER?
Proteins and glycoprotein formation
What is synthesised in the smooth ER?
What are the main functions of the golgi complex?
adds sugars, cleaves proteins and sorts into vesicles
Name the three types of intercellular junctions
Occluding, anchoring and communicating
What do desdemones do?
Link submembrane intermediate filaments of adjacent cells
Name the 4 basic tissue types
What do all epithelial cells have?
A basal lamina
What are the three different ways to describe epithelial shape?
Squamous, columnar, cuboidal
What kind of epithelium has only one layer?
What kind of epithelium has two layers?
What is pseudostratified epithelium?
When it appears to have multiple layers but is in contact with basal lamina
What are the two kind of glandular epithelia?
Exocrine or endocrine
What is soft connective tissue made of?
Bundles of collage fibres
What is cartilage?
Hard connective tissue
Name the tree types of muscle?
Smooth - Involuntary and non-striated
Skeletal - Voluntary and striated
Cardiac - striated
Name the three types of Glia cells of the CNS
Astrogytes, oligodenrocytes and microglia
Name the glia of the PNS
What are the three main salivary glands?
Parotid, madibular and submandibular
Name the four main layers of the digestive tract
Series of Adventitia
Where is the site of RNA synthesis?
DNA which is actively undergoing transcription
DNA which is still condensed and not actively undergoing transcription
Give an example of an inclusion
How are anchoring junctions formed?
Linked actin under the membrane of adjacent cells
What do hemidesdemones do?
Link the intermediate filament of a cell to the extracellular matrix
What produced the pores in communicating junctions?
Has an affinity for acidic molecules and stains purple
Has an affinity for basic substances and stains pink
Do endocrine cells have ducts?
Do exocrine cells have ducts?
In which direction do the products move in endocrine cells?
To the basal end - distributed in vasculature
In which direction do the products move in exocrine cells?
To the apical end - distributed via duct/lumen etc.
What does the extracellular matrix of connective tissue contain?
Fibres, tissue fluid and glycosaminoglycans
Maintain extracellular matrix
Cells of cartilage
Describe the nucleus of skeletal muscle
Describe the nucleus of cardiac muscle
single centred nucleus
What is the connective tissue for the CNS and PNS?
CNS - meninges
PNS - epineurium
What is the mucosa broken up into?
Epithelium, lamina propria and muscularis mucosae
Function of the exocrine part of the pancreas
Makes digestive juice for small intestine
Function of the endocrine part of the pancreas
Islets of langherhan for insulin
Name the 5 types of white blood cell
Neutrophils, eosinophils, basophils, lymphocytes and monocytes