Drugs And The Brain, Touch And Pain, Vision And Movement

1. The area of sensory cortex devoted to a body region is relative to the _________

Size of the body area

Distance of the body area from the brain

Number of motor units in the area of the body

Number of sensory receptors in the area of the body

2. Dependent drugs promote the release of neurotransmitter _____ to seek "pleasure" in the brain

Dopamine

Acetylcholine

Noradrenaline

GABA

3. The high risk dependence drugs are __________

Cocaine, alcohol and cannabis

Amphetamines, heroin and nicotine

Nicotine, cocaine and heroin

Alcohol, cannabis and amphetamines

4. Alcohol interacts with what receptor to calm anxiety, impair muscle control and delay reaction time?

GABA receptor

NMDA receptor

Acetyl choline receptor

Neuropeptide Y receptor

5. The larger a receptive field, the ________________

Larger the stimulus needed to stimulate a sensory receptor

Fewer sensory receptor are there

Harder it is to locate the exact point of stimulation

Larger the area of the somatosensory cortex in the brain that deals with that area

6. Which of the following is not a function of the basal ganglia

Initiation of movements

Complex filter that selects information from an enormous numbers of inputs received by cortex

Important for speech

Important for learning

7. The following are touch receptors embedded in the dermal layer of the skin except _______

Pacinian endings

Meissner corpuscle

Merkel's disk

Ruffini endings

8. The 2 types of touch receptors that respond best to rapidly changing indentations are ______________________

Merkel's disk and Meissener corpuscle

Merkel's disk and Ruffini's endings

Ruffini's endings and Meissener corpuscle

Pacinian corpuscle and Ruffini's endings