Direct synaptic transmission - answer-A direct chemical synapses, a signal molecules activates the ionotropic receptor: a ligand-gated ion channel.
Indirect synaptic transmission - answer-The signal molecule activates metabotropic receptors, which activates secondary messenger signaling pathways...
, NEUR 2201 FINAL EXAM
Direct synaptic transmission - answer-A direct chemical synapses, a signal molecules activates
the ionotropic receptor: a ligand-gated ion channel.
Indirect synaptic transmission - answer-The signal molecule activates metabotropic receptors,
which activates secondary messenger signaling pathways that influence the opening or closing
of ion channels.
Brain Function - answer-1. Creating sensory reality - brain helps create a view of the world to
help it survive
2. Integrating information - current knowledge can be compared with past knowledge
3. Producing Behaviour - Ex. Movement.
Tractography - answer-measures actual neuroanatomical pathways that can be related to
specific traits.
Sensation - answer-registration of physical stimuli from the environment by the sensory organs.
Perception - answer-The interpretation of sensations by the brain. Our visual experience is not
an objective reproduction of what is out there, but rather a subjective construction of reality that
is manufactured by the brain.
Cornea - answer-The clear tissue that covers the front of the eye.
Lens - answer-Focuses light onto retina, to accommodate near and far objects.
Retina - answer-The light-sensitive surface at the back of the eyeball, consisting of neurons and
photoreceptor cells.
Fovea - answer-Region at the center of the retina that is specialized in high acuity.
Retinal Ganglion Cells - answer-Neurons located near the inner surface of the retina that
receive information from photoreceptors via two types of neurons :
- bipolar cells
- retina amacrine cells
Retinohypothalamic tract - answer-Synapses in the tiny suprachiasmatic nucleus in the
hypothalamus.
Role in regulating circadian rhythms and in the pupillary reflex.
Rods - answer-- More numerous than cones(mainly called photoreceptors)
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