Name ________________________________________ Date ______________________________ Period ____________Homeostasis and Nervous System Quiz

Matching: Match the correct vocabulary word with the correct definition by writing the corresponding letter for each vocabulary word on the line next to its definition. 1 pt each (PROBLEMS #1-14)

A. Cell DifferentiationB. Negative FeedbackC. Rod cellsD. Photoreceptors E. VasodilationF. Positive Feedback G. Piloerection

H. Neurotransmitter I. ChemoreceptorsJ. Myelin SheathK. SynapseL. Action PotentialM. Axon terminalN. Mechanoreceptor

1. Chemical Signals released by neurons ____________

2. A stimulus changes some condition and it triggers a response that reverses the change (stops the change) ____________

3. Process by which unspecialized cells in body develop in their mature forms and functions. ____________

4. Blood vessels get closer to your skin so that it can release more heat into the environment ____________

5. Hairs stand and trap a layer of air creating an insulating layer to your body. ____________

6. Detects light intensity to contribute to black and white vision. ____________

7. Receptors found in your eye ____________

8. Receptors that are papillae, which are found on your tongue ____________

9. Insulate neurons’ axons and helps send messages faster ____________

10. Gaps between neurons ____________

11. The original stimulus initiates a chain of events that intensify change from an original condition. (increases change) ____________

12. Electrical impulse that carries messages when a neuron is stimulated. ____________

13. Receptors that are hair cells, which are found in the ear ____________

14. Releases neurotransmitters to the next neuron ____________

Multiple Choice (#15 – 41)Identify the choice that best completes the statement or answers the question.

15. Which type of neuron transmits information within the brain and spinal cord?a. sensory neuronsb. interneurons

c. motor neuronsd. central neuron

16. Hair cells in the inner ear contain receptors that detecta. soundb. fluid

c. impulsesd. vibrations

17. The brain is connected to the spinal cord by the:a. cerebrumb. brain stem

c. sensory cortexd. cerebellum

18. The parasympathetic nervous system is activated when you: a. hear a telephone ring.b. Lift a hammer

c. Run a race d. Sit thinking

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19. Why does a reflex arc result in a very quick response?a. because the brain senses dangerb. because the reflex is involuntary c. because the motor neuron responds faster than any otherd. because the impulse does not travel to the brain

20. A dendrite conducts nerve impulses ____________ the cell body.a. away fromb. toward

c. both toward and away fromd. only inside

21. An axon conducts nerve impulses _____________ the cell body.a. away from b. toward

c. both toward and away fromd. only inside

22. A sensory neuron of the peripheral nervous system take nerve impulses from sensory receptors to the ___________________.

a. motor neuronsb. interneurons

c. autonomic nervous systemd. central nervous system

23. What is the simplest level of organization in the body?a. tissueb. cellc. organ

d. organ system

24. When organ systems work together, they form another level of organization calleda. organisms.b. tissues.c. cells.

d. organs.

25. The lungs are composed of four types of tissues. Which phrase best describes the lungs?a. a specialized cellb. an organc. an organ system

d. an organism

26. What process is shown in the diagram in Figure 28.1?

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a. internal environmentb. control systemsc. cell differentiation

d. cell determination

27. Which type of cell goes through the determination process?a. stemb. epithelialc. connective

d. muscle

28. The process of maintaining an internal constant environment is called:a. feedback.b. differentiation.c. determination.

d. homeostasis

29. The body works to maintain homeostasis in response to what conditions?a. tissue and cell formationb. production of key vitaminsc. cell differentiation and determinationd. internal and external changes

30. On a hot day, which of the following is an outward sign that thermoregulation is taking place?a. sweatingb. sunburnc. slow breathing

d. dry mouth

31. During childbirth, a woman's body produces oxytocin, which causes the uterus to contract. To maintain the contractions, more oxytocin is produced until the baby is born. This is an example of

a. negative feedbackb. positive feedback.c. cell death.

d. sensor failure.

32. What do rod and cone cells do when they are stimulated?a. bend the optic nerveb. focus light onto the retinac. interpret light as an imaged. generate an impulse

33. Thoughts, movements, and many other life processes are controlled by the:a. Nervous systemb. Digestive System

c. Repiratory Systemd. Circulatory System

34. Which of the following best describes the central nervous system?a. Motor Neuronsb. Nerves

c. Brain and spinal cordd. All of the above

35. Unlike the parts of the nervous system, the endocrine system's partsa. work independently of one another.b. are physically disconnected.c. control many processes.d. communicate with each other.

36. How do cells in a multi-cellular organism become specialized?

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a. Cutting off parts of the gene (DNA) and using them b. Cells can decide to become whatever type of cell they want to be at all times c. Unspecialized cells turn different genes on and off as they reproduce d. All babies start off with 1 of each specialized cell and they reproduce

37. Both the nervous and the endocrine systems allow you toa. analyze thoughtsb. respond to stimuli

c. control growthd. react at the same rate

38. Something that causes your nervous system or endocrine system to produce a response is called a;a. receptorb. change

c. messaged. stimulus

39. When you compare the endocrine system to a satellite television system, a satellite dish is compared to a: a. signalb. receptor

c. nerved. stimulus

40. The PNS nerves are part of either the somatic system or the _______________________.a. central nervous systemb. sympathetic system

c. parasympathetic systeme. autonomic system

41. the somatic system contains nerves that control _______________________. a. digestionb. heart beat

c. movementd. lungs

Fill in the blank, label, and short answer:

42. Hair growth is controlled by what system? _________________________________

43. The endocrine communicates through ______________________ and the nervous system communicates through ________________________.

44. Order of the levels of organization (MICRO MACRO): ****START WITH LIVING

_______________________________, _______________________________, _______________________________,

_______________________________, _______________________________

45. Label the different parts of the neuron (five parts)

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46. Give your own EXAMPLE of negative feedback and positive feedback:

47. Label the following on this diagram: motor neurons, interneurons, effectors, receptors, sensory neuron,

48. Label the 3 different parts of the brain:

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