Since the Olfactory Pathway from the Receptors to the Cortex

question 13

Multiple Choice

Since the olfactory pathway from the receptors to the cortex does not go through the thalamus,it suggests that

• A)the olfactory system evolved earlier than the other sensory systems.
• B)the olfactory system evolved later than the other sensory systems.
• C)the olfactory pathway came into existence after the thalamus developed.

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Definitions:

Synaptic Vesicles

Membrane-bound sacs within a neuron that contain neurotransmitters, which are released into the synaptic cleft to transmit signals to other neurons.

Synaptic Vesicles

Membrane-bound sacs in the nerve synapse that store neurotransmitters released during synaptic transmission.

Neurotransmitter

Chemicals in the brain that transmit signals from one neuron to another, playing key roles in mood, thought, and behavior.

Synaptic Vesicle

A small organelle within a neuron that stores neurotransmitters for release at the synaptic cleft.