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7th Science Unit 7 & 8 Flash Cards

1.

Which system protects the body from disease?

Immune system

2.

A change or signal in the environment that can make an organism react is called a...

Stimulus

3.

What is the function of the immune system?

Fighting off infections, recognizing harmful substances, producing antibodies

4.

What part of a neuron carries nerve impulses away from the cell body?

Axon

5.

Which pathogen can be cured by antibiotics?

Bacteria

6.

A motor neuron sends an impulse to

a Muscle

7.

Any substance that causes an allergy is a(n):

Allergen

8.

The thick column of nerve tissue that links the brain to most of the nerves in the peripheral nervous system is the

Spinal Cord

9.

An example of a noninfectious disease is:

Diabetes

10.

The somatic nervous system controls

voluntary actions

11.

An example of an infectious disease is:

Measles

12.

An automatic response of the body that occurs very rapidly and without conscious control is called a(n)

Reflex

13.

Viruses and Bacteria are ___________________.

Pathogens

14.

In some reflex actions, skeletal muscles contract without the involvement of

the brain

15.

One way you can kills pathogens is by ___________________.

Washing your hands

16.

The sense organs send information about the environment to the

the brain.

17.

Which of these can you get from pathogens?

common cold

18.

What is the name of the opening through which light enters the eye?

pupil

19.

What are the four types of pathogens?

Bacteria, Virus, Fungi, and Protists

20.

Nearsightedness and farsightedness are caused by

a defect in the shape of the eyeball

21.

_______ can give you athlete's foot.

Fungi

22.

What produces sound?

Vibrating Sound

23.

Zits are caused by ___________.

Bacteria

24.

Pain is an important function because

it can alert the body to danger

25.

The flu is caused by a ______________.

Virus

26.

A synapse is the space between

an axon terminal and the next dendrite.

27.

TRUE OR FALSE: Germs can be seen with just your eyes.

False

28.

The brain and spinal cord make up the

Central Nervous System

29.

What is the purpose of antibodies in the immune system?

To neutralize pathogens

30.

Because of the way in which the lens of the eye bends light rays, the image produced by the lens are

Upside down

31.

What is passive immunity?

Short-term immunity which results from the introduction of antibodies from another person or animal

32.

What are examples of sense organs?

eyes, ears, tongue among others

33.

The cochlea is part of the

Ear

34.

What is the role of fever in the immune response?

To kill pathogens by raising body temperature

35.

The spinal cord is an extension of the

Brain Stem

36.

Organisms that cause disease are called...

Pathogens

37.

____ receive messages from other neurons and send them to the cell body.

Dendrites

38.

TRUE OR FALSE: An axon carries impulses toward the nerve cell body.

False

39.

TRUE OR FALSE: The body’s reaction to a change in the environment is a response.

True

40.

TRUE OR FALSE: Involuntary actions are controlled by the autonomic nervous system.

True

41.

TRUE OR FALSE: One function of the nervous system is to maintain homeostasis, or stability within the body.

True

42.

TRUE OR FALSE: After you accidentally touch a hot pan, you immediately jerk your hand away without thinking about your action, and before you even feel the pain of the burn. This type of response is known as a reflex.

True

43.

What part of neuron carries messages away from cell body

Axon

44.

The small space between neurons is called what?

synapse

45.

What is composed of two parts: the central and peripheral

Nervous System

46.

What is made up of nerves outside the central nervous system

peripheral nervous system

47.

What part of neuron receive messages and send them to cell body

Dendrites

48.

nerve cells that relay impulses between sensory and motor neurons that are located in the brain

Interneurons

49.

What is the fluid-filled structure in the inner ear called.

Cochlea

50.

What carries impulses from the retina to the brain

Optic Nerve

51.

What are the major sensory receptors on the tongue called?

Taste Buds

52.

Part of the eye that gives you your eye color.

Iris