Unit 2: Biological Bases of Behavior

Name the two major parts of the central nervous system.

• The brain and the skull. 
• The brain and the body.
• The spinal cord and the brain.
• The spinal cord and the body. 

A functional MRI (fMRI) and a PET scan both:

• provide a way to measure the functioning and activity of the brain.
• produce black and white scans of the brain’s structures.
• create selective injuries that allow researchers to study brain function.
• provide detailed computerized interpretations of brain dysfunctions.

The part of the brain that controls life-sustaining functions, such as heartbeat, breathing, and swallowing, is the:

• cerebral cortex.
• cerebellum.
• medulla.
• hippocampus.

The ______ lobes are responsible for higher mental processes such as decision making.

• parietal
• frontal
• temporal
• occipital

Controls arousal  (sleepiness and awakefulness)

• Reticular Formation
• Thalamus
• Amygdala
• Medulla

What is the brief electrical charge that travels down an axon called?

• Action potential

• Resting potential

• All-or-none Impulse

• Refractory period

• Myelination response

When a neuron receives a stimulus that is very strong, the result is that:

• the neuron fires in an all-or-none fashion.
• the neuron fires at a greater strength.
• fewer neurons fire at the same time.
  
• the neuron cannot fire back.
  

Which part of the brain controls language comprehension?

• Occipital lobe
• Wernicke's area
• Broca's area
• Amygdala

Which neurotransmitter enables muscle action, learning, and memory?

• dopamine
• serotonin
• norepinephrine
• Acetylcholine (ACh)

What does the cerebellum help maintain?

• body temperature
• emotions
• motor output
• balance