AP PSYCH Unit 2 Biological Bases of Behavior

In transmitting sensory information to the brain, an electrical signal travels from the ________ of a single neuron.

• dendrites to the cell body to the axon
• axon to the dendrites to the cell body
• axon to the cell body to the dendrites
• dendrites to the axon to the cell body

The speed at which a neural impulse travels is increased when the axon is encased by a(n)

• synaptic vesicle.
• pituitary gland.
• endocrine gland.
• myelin sheath.

As you are reading this question, the cells in your eyes are firing in response to the light coming from this screen. Which type of neuron is carrying this message to the brain?

• sensory
• presynaptic
• motor
• efferent

Some opiate drugs have molecular structures so similar to endorphins that they mimic endorphin's euphoric effects in the brain, making these opiate drugs which kind of molecule?

• endocrines
• endorphins
• antagonists
• agonists

Which of the following triggers the “fight-or-flight” response, increasing your heart rate and blood pressure, as you run away?

• sensory
• motor cortex
• sympathetic nervous system
• somatic nervous system

The master gland of the endocrine system is the

• adrenal gland.
• pituitary gland.
• pancreas.
• hypothalamus.

The chemical messengers of the endocrine system are called

• neurotransmitters.
• interneurons. 
• hormones.
• antagonists

Severing a cat's reticular formation from higher brain regions causes the cat to

• become violently aggressive.
• cower in fear.
• experience convulsive seizures.
• lapse into a coma.

Which of the following is the component of the limbic system that plays an essential role in the processing of new memories?

• medulla
• hippocampus
• thalamus
• hypothalamus

Which lobes of the brain receive the input that enables you to feel someone scratching your back?

• parietal
• temporal
• occipital
• frontal