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PSYCH100 CH.3
Biological Psychology
| Question | Answer |
|---|---|
| Define biological psychology. | A branch of psychology concerned with the links between biology and behavior (body & mind). |
| About how many neurons are in the brain? | 80-100 billion. |
| What's the basic building block of the nervous system? | Neurons (nerve cell). |
| What are the 3 components of the Neuron? | Dendrites, axon, and terminal buttons. |
| What do dendrites do in a neuron? | Receive information from other neurons. |
| What does axons do in a neuron? | Speeds up conduction of nerve messages. |
| What insulates the nerve cell inside the axon of a neuron? | Myelin. |
| What do terminal buttons do? | Release neurotransmitters. |
| How many known types of neurotransmitters are there? | 40. |
| action potential | electrical signal that moves down the neuron's axon |
| agonist | drug that mimics or strengthens the effects of a neurotransmitter |
| antagonist | drug that blocks or impedes the normal activity of a given neurotransmitter |
| Broca's area | region in the left hemisphere that is essential for language production |
| homeostasis | state of equilibrium--biological conditions, such as body temp, are maintained at optimal levels |
| lateralization | concept that each hemisphere of the brain is associated with specialized functions |
| neuroplasticity | nervous system's ability to change |
| range of reaction | asserts our genes set the boundaries within which we can operate, and our environment interacts with the genes to determine where in that range we will fall |
| Wernicke's arms | importnat for speech comprehension |
| Ventraltegmental area (VTA) | midbrain structure where dopamine is produced: associated with mood, reward, and addiction |
| reuptake | neurotransmitter is pumped back into the neuron that released it |
| What are the 3 major structures of the brain? | Hindbrain, midbrain, forebrain |
| In the hindbrain, the Medulla has what function? | regulating heart rate & breathing |
| In the hindbrain, the pons have what function? | automatic and unconscious movements |
| Which part of the hindbrain is responsible for balance, coordination, and voluntary movements. | Balance |
Created by:
Butterduc
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