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1)Endorphines____. a. are less powerfull than enkaphalines b.reduce pain message

ID: 65360 • Letter: 1

Question

1)Endorphines____.

a. are less powerfull than enkaphalines

b.reduce pain messages from neurotransmitters

c. are radically different in function from neurotransmitters

d. are found where neurons meet skeletal muscles

2) A middle aged person who is depressed most likely has a problem with which of the following neurotransmitters?

a. Serotonin    b.GABA c. Dopamine   d. Acetylcholine

3) Before birth, human embryos have a large supply of cells known as____. cells, which are capable of becoming neurons.

a. Schwan    b. glial   c. mast   d. stem

4) In research with humans patients suffering from Parkinson's disease, fetal nerve cell transplants____.

a. resulted in only sporadic, temporary improvements in motor control

b.improved motor control for periods of only 1-4 years

c. improved motor control for periods 5-10 years

d. resulted in no improvement in motor control

Explanation / Answer

1. Reduce pain message from neurotransmitter. - Endorphines are chemicals which inhibit transmission of pain signals

2. Serotonin - A neurotransmitter responsible for influence of moods of individual. low levels leads to depression in individuals.

3. Stem cells - These are pluripotent cells capable of diverting into any lineage.

4. improved motor control for periods 5-10 years. - The motor control was seen to be improved for more than 5 years and about 10 years upon transplantation.