Physiologival And Pharmacological Aspects Of The CNS: Module 1- Section 06

Question 1

Cerebral Cortex

Answer 1

Largest part of the brain and is very rich is neutrons. The functions include sensory and motor coordination, mental processes, intelligence, memory, vision, judgement, thought, speech, emotions, and consciousness.

Question 2

Limbic System

Answer 2

Region of the brain that integrates memory, emotion, and reward. This area of the brain, together, with the hypothalamus, controls emotion and behaviour. This system contains the dopaminergic reward centres, which are targets for commonly misused drugs and are associated with addiction.

Question 3

The Neuron

Answer 3

The functional unit of the brain. The brain contains about 90 billion of these structures.

Question 4

Neurogenesis

Answer 4

Process of where new neutrons are generated.

Question 5

Neuroplasticity

Answer 5

The process of the connection between neutrons being reshaped.

Question 6

Dendrites

Answer 6

Function as receiving antennae for incoming information and accept information through receptors located on the membranes. Upon receiving this information from another cell, an electric current in generated and directed down the neuron.

Question 7

Cell Body

Answer 7

Largest part the neuron an contains a nucleus and surrounding cytoplasm.

Question 8

Axon

Answer 8

Single fibre that extends from the cell body and ends at a synapse. It continues to carry information away from the dendrites and cell body by way of electrical pulses. The information is then passed on to subsequent neurons.

Question 9

Synapse

Answer 9

Junction of one neuron to another neuron. Area where one neurons axon ends and another’s dendrite or cell body begins. Can be a target site for many drugs, which may cause interrupted synaptic transmission, or may enhance or facilitate it.

Question 10

Synaptic Transmission

Answer 10

Passage of a signal from one neuron to another neuron.