White matter in your spinal cord typically are neurons involved in transferring signals very rapidly throughout the central nervous system. The white color of white matter is the result of myelin sheaths around axons Which of the following is the most important major difference between signals moving through white matter vs gray matter?

How do selective-serotonin reuptake inhibitors (SSRIS) increase serotonin in the synapse? O They cause excessive 5-HT release from the pre-synaptic neuron O SRIS prevent the inactivation of 5-HT in the synapse O SRIS block the reuptake of 5-HT into the pre-synaptic neuron O They actually don't increase 5-HT! D Question 10 Stimulants such as cocaine increase the neurotransmitter in the synapse O acetylcholine O serotonin O none of these O dopamine D Question 11 What brain area that is a target of the mesolimbic dopamine pathway is important for the rewarding effects of drugs? O nucleus accumbens O No answer text provided. O hippocampus O prefrontal cortex

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Which one of the following statements is FALSE?   Question 36 options:   Cranial nerves IV, VII, X and XII all have parasympathetic functions   The cornea is the first structure to focus incoming light   Cone cells are found primarily within the fovea   The auricle helps focus sound waves into the external acoustic meatus   The ANS is a motor system only

QUESTION 9 Identify the indicated functional classification of neuron in the image. Sensory receptor -Effector organ effector sensory neuron motor neuron O interneuron

Please fill out 3,4,5 and 6 if possible. #1 is mechanoreceptor #2 is dorsal root ganglia

Question: Suggest two reasons why people had the drug injected into the cerebrospinal fluid (lines 12–13) rather than taking a pill containing the drug.

Please read questions carefully, they are purposefully written to be trick question 39. Which of the following statements about the reticular formation is false?  a. it arises from the brain stem and has wide-ranging axonal connections b. it is responsible for arousal to keep the cortex conscious and alert via RAS c. it filters 99% of all stimuli via ascending reticular formation d. it regulates visceral motor functions via descending reticular formation e. none of the above

Structure A is alan A. Structure B is a/an Structure C is a/an The small dark staining dots surrounding the neuron in this image are B

The peripheral nervous system consists of the brain and spinal cord.    Question 11 options:   True   False