Week 3 Psych Quiz

31. Morgan spots the guy she has a crush on sitting by his friends. Her heart begins to pound, her hands get sweaty and her cheeks feel hot. Morgan's _________________ has/have been activated.

a. autonomic nervous system

32. The ___________________ is divided into the parasympathetic nervous system and the sympathetic nervous system.

a. autonomic nervous system

35. Patrick has just escaped from a rabid wildebeest. His heart begins to return to normal, his breathing slows down, his pupils constrict and his eyes begin to water. Patrick's ____________________ has/have just been activated.

a. parasympathetic nervous system

27. The central nervous system consists of:

a. the brain and spinal cord.

8. A nerve is nothing more than a bundle of connected:

axons

12. A chemical substance that is released by a transmitting neuron at the synapse and that alters the activity of a receiving neuron is called a/an"

neurotransmitter

2. ___________look like tree branches and they receive neural impulses from other neurons and transmit them toward the cell body.

Axons

5. ________ are a neuron's extending fiber that conducts impulses away from the cell body and transmits them to other neurons, muscles or glands.

Axons

17. Which of the following neurotransmitters functions as the major inhibitory neurotransmitter in the brain?

a. GABA

4. Which part of the neuron contains the biochemical machinery for keeping the cell alive and determines whether the neuron should fire?

Cell body

3. Which of the following act like antennas, receiving messages from as many as 10,000 other cells and transmitting these messages to the cell body?

Dendrites

1. A cell that conducts electro-chemical signals and is the basic unit of the nervous system is called a

Neuron

6. What is the function of the myelin sheath?

To speed up neural transmission and protect the axon

18. Which of the following neurotransmitters affects neurons involved in voluntary movement, learning, memory, emotion, and responses to novelty?

b. Dopamine

22. Which hormone is involved in regulation of biological rhythms, such as the promotion of sleep?

b. Melatonin

39. Which brain area is involved in regulating movement and balance, as well as solving problems?

b. cerebellum

16. Margaret's levels of serotonin are abnormally low. These low levels have been associated with:

b. depression

24. Which of the following sex hormones contributes to breast development and the onset of menstruation in females during puberty?

b. estrogen

29. A subdivision of the ________________ nervous system, the _______________ nervous system connects sensory receptors to skeletal muscles.

b. peripheral; somatic

28. Brittany touches a hot iron and immediately pulls her hand away. Her quick response occurs because:

b. spinal reflexes are automatic, requiring no conscious effort.

34. It is late at night, Morgan is alone, and she notices that a large man is slinking toward her desk. His pace has quickened and Morgan's heart begins to race, her pupils dilate, she begins to sweat, and stress hormones are released. Morgan's _____________________ has/have been just activated.

b. sympathetic nervous system

25. Which of the following sex hormones contributes to deepening voice and emergence of facial and chest hair in males during puberty?

b. testosterone

21. Jackie is a cross-country runner who regularly experiences "runner's high" which she describes as "it makes pain bearable." What has created this experience for Jackie?

c. Endorphins

15. Which of the following neurotransmitters are involved in sleep, appetite, sensory perception, temperature regulation, pain suppression and mood?

c. Serotonin

19. Actor Michael J. Fox announced that he was leaving his hit show, Spin City, in order to reduce the symptoms of Parkinson's disease and to spend more time with his family. His disorder is caused by:

c. a loss of dopamine

42. The _________________ consists of the hypothalamus, amygdala and hippocampus. And.....you shouldn't mess with it.

c. limbic system

38. If someone has severe damage to the _________________, death will likely result. Just ask Christopher Reeve.

c. reticular activating system

36. The part of the brain at the top of the spinal cord is called the:

c. reticular formation/brain stem

30. The __________________ consists of nerves that are connected to the sensory receptors and to the skeletal muscles that permit voluntary action.

c. somatic nervous system

41. If you are looking for a vital structure that is involved in emotions and drives such as fear, hunger, thirst, and reproduction that are vital for survival, look no further than:

d. Hypothalamus

40. The central relay station which sends important sensory information such as color, motion, edges, faces, shapes and about several hundred other such areas important for later perception is called the:

d. Thalamus

26. The ___________________ receives, processes, interprets, and stores incoming sensory information and also sends out messages to muscles, glands, and internal organs.

d. central nervous system

23. The one gland of the adrenal system the Loon wants you to know something about is the:

d. hypothalamus

37. The three main structures of the brain stem/reticular formation are the:

d. medulla, cerebellum and pons

33. The __________________ nervous system prepares the body to expend energy, whereas the __________________ nervous system allows the body to restore and conserve energy.

d. sympathetic; parasympathetic

13. When the neurotransmitter binds to a receptor site it can cause:

excitation or inhibition (fire or not to fire)

20. Endorphins

get you high & are pain killers & are your brain's natural turn-on d. all of the above.

7. Fraser is told by his doctor that his symptoms are caused by the lack of myelin. His diagnosis would most likely be:

multiple sclerosis.

9. The site where a nerve impulse is transmitted from one nerve cell to another is called the:

synapse

10. Between neuron communication occurs through transmission of neuronal information across a(n):

synapse by neurotransmitters

11.The brief change in electrical voltage within a neuron caused by chemical changes within the neuron is called:

the action potential

14. A neurotransmitter binds to a receptor site and the ultimate effect is a voltage shift in a negative direction. When this occurs:

the probability that the receiving neuron will fire decreases.