09/25: Action Potential Propagation
Slide1: How the action potential is propagated from the axon hillock to the axon terminal to
transmit signal. Action potential is generated at hillock by depolarization.
. Reaching action potential means: opening of the
08/28, Friday continue Chp1 w/ Guest Lecturer
Slide 6: Neuronal Morphological (cellular shape=function)
-Diff type but all shapes does the same thing; inputoutput (at axon terminal)
-3 type main part
-Unipolar: dendrites dont really connect to the soma; u
09/09: Continue of Membrane Potential PPT
Slide7: Leak Current
- The phospholipid bilayer membrane is impermeable to charged particles; can only get it charged by a special
protein which in this case is a CHANNEL
-Leaking passively charged particle across
OH with TAs 10-12pm on Thursday; Exam next Friday, Wednesday review session
TOPIC: ACTION POTENTIAL GENERATION
Slide1: Learning objectives
- Current clamp vs Voltage clamp recording; technique and info. received from both.
-Current clamp: an
08/28 Cellular Base of Neuroscience
Slide One: Brain consists of (1) neurons, (2) glial cells, and their (3) synapses.
- Each neuron can receive up to 1000+ trillions of synapses (junctions for communication
from other cells). Neurons have a lot of comput
CHP3: 09/02;CHP 3
Slide 1: Title
Slide 2: Learning Objectives
Slide 3: Ionic Environments
- Aq (in water, which is polar: has negative and positive poles)
- Salts; dissociates completely, dissolves in H2O. Forms ion (charged molecules); water will surroun
Slide 7: Voltage-Gated channels
- Influx of Na (inward current and transient (turns off by itself) current) and sensitive to depolarization b/c
to their charge to amino acids, residue, and proteins. As it is open; the channel will influx its
08/31: Chp2, Guest Lecturer
Soma(Cell Body): where most of your proteins are made and packaged into vesicles.
Packaging neurons into vesicles to be released at synapse
Nucleus (where your DNA is and where transcription takes place) nuclear envelo
Membrane and Ion
The plasma membrane
Synaptic Transmission I
Chemical vs. electrical synapses
Types of chemical synapses
EPSPs and IPSPs
Mechanisms of transmitter release
2 Types of Synaptic Transmission
The Membrane Potential
Chemical gradients and electrical fields
Membrane conductance, resistance, potential, current
Passive potentials vs. action potentials
Ion equilibrium potential
Resting membrane potential
Ion driving force
Maintaining ionic gradient
09/16/15 Wednesday: Guest lecturers; REVIEW
50 multiple choice questions; some diagrams; not really a definition questions. Requires some
-You should what symbols and equations; no need for calculator.
-Nernst eq*: ion movt and charges. Note; tw
The Vestibular System
posture, head, body,
Otolith organs gravity and tilt
Semicircular canals head rotation
Both use hair cells, like
0904: Friday, Tasker
Slide1: The Membrane Potential
- Based on the structure of the membrane* Topics: gradients and property of membranes.
- Learning Objectives for todays lecture.
-Definition: membrane conductance, resistance, potential, current.