TITLE: MUSCULO-SKELETAL SYSTEM QUIZ



7th Grade Science Assessment Name __________________

RIO Unit 20 – Nervous & Endocrine Systems

1. What is the most important function of the nervous system? (Analyzing)

A. To obtain nutrients the body needs for growth, development and repairing tissues.

B. To produce chemicals that control the body’s daily activities and control long-term development.

C. To receive information from inside and outside of the body, and direct the way your body responds.

D. To transport needed materials to body cells and remove waste products.

2. When the nervous system makes you feel hungry or thirsty, what body process is it helping to carry you out? (Integrating)

A. Delivering oxygen to cells.

B. Maintaining homeostasis.

C. Moving the body.

D. Supporting the body.

3. Lee is walking his dog, Max. When a cat ran past, Max ran after the cat, pulling Lee to the ground. What was the stimulus for Max? (Analyzing)

A. Lee holding the leash.

B. Max seeing the cat.

C. Max running after the cat.

D. Lee falling down to the ground.

4. When your head itches, your hand goes to scratch the itchy spot. What do you call the scratching action? (Applying)

A. Concentration

B. Coordination

C. Response

D. Stimulus

5. Which part of the nervous system is the brain part of? (Knowing)

A. Central Nervous System

B. Peripheral Nervous System

C. Autonomic Nervous System

D. Somatic Nervous System

The diagram shows part of the nervous system. Use the diagram to answer questions 6, 7, 8 and 9.

6. What structure is shown in the diagram? (Analyzing)

A. A neuron

B. The spinal cord

C. A synapse

D. A receptor

7. In which direction would the structure shown in the diagram carry a nerve impulse? (Organizing)

A. From X in both directions to W and Y

B. Back and forth between W and Z

C. From W toward Y

D. From Y toward W

8. Which part of the diagram shows the dendrites? (Knowing)

A. Part W

B. Part X

C. Part Y

D. Part Z

9. What is the benefit of having many dendrites on a single nerve cell? (Analyzing)

A. To hold the neuron in the correct place in the body.

B. To receive impulses from many other cells.

C. To send impulses to many surrounding cells.

D. To receive blood from many different blood vessels.

The diagram below shows a sensory neuron, a motor neuron, and the brain. Use this diagram to answer question #10.

[pic]

10. Which path does an impulse follow through the nervous system? (Organizing)

A. Sensory neuron ( spinal cord ( brain ( spinal cord ( motor neuron ( muscle.

B. Sensory neuron ( spinal cord ( brain ( motor neuron ( muscle.

C. Motor neuron ( spinal cord ( brain ( spinal cord ( sensory neuron ( muscle.

D. Motor neuron ( brain ( spinal cord ( sensory neuron ( muscle.

11. Which response is the best example of a “reflex”? (Analyzing)

A. Getting a drink of water when you feel thirsty.

B. Putting on a sweater when you feel cold.

C. Putting your hand out to catch a ball that is thrown toward you.

D. Pulling your hand away from a hot stove.

12. Which of these situations represents an internal stimulus that your body would react to? (Applying)

A. Feeling thirsty

B. Getting sun in your eyes

C. Hearing a loud sound

D. Smelling food

13. What effect does practicing a skill have on the nervous system? (Generating)

A. Decreases coordination

B. Improves response time

C. Decreases the effect of the stimulus

D. Has no effect at all.

14. How would a serious injury to the spinal cord probably affect a person? (Generating)

A. It could cause a concussion.

B. It could cause paralysis.

C. It could cause a reflex.

D. It could speed up signals to the brain.

15. You test your reaction time in class and find that your right foot responds slower to a moving target than your right hand. Which statement best explains the reason for the difference? (Evaluating)

A. Hands are smaller than feet, so they move more quickly.

B. You use your hands more often than your feet, so they have more practice responding to stimuli.

C. Hands are closer to the brain, so the impulse doesn’t have travel as far a distance.

D. Shoes weigh down your feet, making them react slower.

16. How do impulses cross the synapses between neurons? (Knowing)

A. With a chemical

B. Through interneurons

C. Through the cell body

D. Through muscles

17. How might a loud, scary noise upset the body’s homeostasis? (Generating)

A. decreases muscle control

B. causes drowsiness

C. slows down breathing rate

D. speeds up heart rate

18. Why is pain an important sensation? (Analyzing)

A. It helps the immune system function.

B. It can alert the body to danger.

C. It acts as a depressant, relaxing the body.

D. It signals to the body to remain still.

Below is a diagram of the 3 main parts of the brain. Use the diagram of the brain to answer questions 19 and 20.

19. Which part(s) of the brain control involuntary actions such as breathing and heart rate? (Knowing)

A. Brain Stem

B. Cerebrum

C. Cerebellum

D. All three parts together

20. Which statement best explains the role of the cerebrum, the largest part of the brain? (Evaluating)

A. It carries out complex thought such as learning and remembering.

B. It coordinates the movements of your largest muscle groups.

C. It controls involuntary actions such as breathing and heart rate.

D. It controls your automatic reflexes.

21. What is the main function of the endocrine system? (Analyzing)

A. To regulate the body’s activities by sending nerve impulses throughout the body.

B. To maintain homeostasis by controlling the levels of harmful chemicals in the blood.

C. To transport needed materials to your cells and to eliminate waste products from your body.

D. To regulate the body’s daily activities and long-term changes by sending chemicals to around the body.

22. What are the chemicals produced by the endocrine system called? (Knowing)

A. Enzymes

B. Glands

C. Hormones

D. Toxins

23. Which of the following is an example of negative feedback in the endocrine system? (Applying)

A. When a hormone travels through the blood stream, it will only interact with its target cells.

B. After age 40 or so, people’s muscle strength begins to decrease.

C. When hormones are released, certain activities in the body speed up.

D. When the amount of hormone reaches a certain level, the endocrine system stops releasing that hormone.

24. The nervous and endocrine systems both control the body’s activities, but do so in different ways. Which reaction is mainly caused by the endocrine system? (Applying)

A. When people are frightened, their heart beats faster.

B. When people are cold, they begin to shiver.

C. When you feel pain in your hand, you pull your hand away.

D. When the lights go out, your eyes slowly adjust to the dark.

Use the diagram below of the hypothalamus and one of the endocrine glands to answer question #25.

[pic]

25. Which of the endocrine glands is located next to the hypothalamus in the brain? (Organizing)

A. Adrenal gland

B. Pituitary gland

C. Salivary gland

D. Thyroid gland

26. Certain endocrine glands release the hormones that control sexual development during puberty. In a female, which gland secretes the hormones that trigger egg development? (Analyzing)

A. Adrenal gland

B. Ovaries

C. Pituitary gland

D. Testes

27. During puberty, the levels of estrogen and testosterone increase. Which statement about these hormones is generally TRUE? (Evaluating)

A. Males have only testosterone, and females have only estrogen.

B. Males and females have equal amounts of both.

C. Males have more estrogen, and females have more testosterone.

D. Males have more testosterone, and females have more estrogen.

28. One disorder that affects the endocrine system occurs when a tumor forms on the pituitary gland, resulting in the release of too much growth hormone. If this situation occurs when you are a child, which situation would probably result? (Generating)

A. The body gains weight becoming obese.

B. The body grows very tall too quickly.

C. The hair and nails begin to grow too quickly.

D. The nerves grow too quickly causing intense pain.

The diagram below shows how two hormones (insulin and glucagon) help regulate blood sugar levels (the amount of glucose in the blood) to maintain homeostasis in the body. Use the diagram to answer questions #29, #30 and #31.

[pic]

29. When blood sugar is low, how does the endocrine system react? (Organizing)

A. It releases glucagon.

B. It releases insulin.

C. It releases blood sugar.

D. It stops releasing all hormones.

30. After a meal, blood sugar usually increases. Knowing this, when would you expect levels of insulin to be highest? (Applying)

A. Shortly before a meal

B. During a meal

C. After a meal

D. Insulin levels would remain constant

31. Diabetes is a disorder that affects the amount of insulin in the body – generally, a person with diabetes has too little insulin. What would you predict about the blood sugar levels of a person with diabetes compared to a healthy person? (Integrating)

A. A person with diabetes would usually have higher blood sugar.

B. A person with diabetes would usually have lower blood sugar.

C. A person with diabetes would usually have similar levels of blood sugar.

D. A person with diabetes does not have any blood sugar (no glucose in their blood).

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Brain Stem

Cerebellum

Cerebrum

Z

Y

W

X

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