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Lecture 2

BIOC14H3 Lecture Notes - Lecture 2: Telomere, Rna Interference, Molecular Medicine


Department
Biological Sciences
Course Code
BIOC14H3
Professor
Patrick Mc Gowan
Lecture
2

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Lecture 2

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Lecture 2 Objectives
Neuronal structure & function
Neurotransmitters
Synaptic communications
Types of synaptic receptors
Genetic influences
Neuropharmacology
Human Genome Project
Genetic variations
SNPs
GWAS
Chapter 3 and 4

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3
Neuronal Structure
Neurons:
Specialized cells
Receive and send information
Use electrochemical signalling
Approx. 100 billion (1 x 1011) neurons in average human brain
Length: µm to m in humans
Aborizations
involves electrical signaling in the neuron and chemical signalling
across neurons for communication.
we have very little understanding of how brains work. Neuron is a cell containing
arborizations in one end (tree with branches)
axons can be really long. e.g. if your really tall you can have axons running over a metre in length
there is a need to transmit
information across long
distances in some cases.
one of the primary cell types in the brain that is the foundation for behaviour. Mostly post mitotic cells, very
long lived, you can have individual cells that live as long as you do! Glia is the other primary cell type
involved in neurocommunication.
and a lot more connections than that !
transmit info to other cells
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