Diagrams Flashcards
DNA helicase
Binds to origin of replication
Cleaves and unravels
Part of the DNA double helix
Binding protiens
Attach to to single strands so DNA will stay unwound
RNA primasse
Attaches to the DNA strand to act as a starting point, lays down primer
DNA polymerase 3
Begins to add nucleotides into complementary strands, creates new strands
DNA polymerase 1
Replaces RNA primers with DNA
DNA ligase
Stitches Okazaki fragments back together
Is an enzyme
Corpus callosum
Bundle of fibres allowing the left and right to communicate
Cerebellum
Coordination balance and fine motor movement
PONS
Connects the medulla oblongata and cerebellum * relay station
Medulla oblongata
Controls autonomic responses
Midbrain
Relay station
*eye movement
*skeletal control
Thalamus
Relay station
Hypothalamus
Homeostasis
Heart rate
Blood pressure
Temperature and emotions
Cerebrum
Largest most complex part of the brain
Occipital lobe
Vision, analyzes visual info
Temporal lobe
Hearing and smell , speech and memory
Parietal lobe
Spacial awareness, sensory info from skin
Frontal lobe
Memory, planning movement, behaviour and reasoning
Dendrites
Receive nerve impulses
Cell body
Receives input from dendrites
Axon
Transmits signal away from cell body
Myelin sheath
Insulated layer, protects axon and increases speed
Schwann cells
Type of glial cell that produces myelin sheath
Nodes of ranvier
Gaps between myelin sheath
Terminal branches/ end plates
Communicates to other neurons through chemical signals called neuron transmitters
Neurilemma
Surrounds axon of PNS nerve fibres, promotes regeneration of axons
