Grade 6 - Nervous System

Question 1

A network of cells and tissues that control thoughts, movements, as well as, life processes. It controls the different parts of your body.

Answer 1

Nervous system

Question 2

What are the two major divisions of the human nervous system?

Answer 2

Central nervous system (CNS)
Peripheral nervous system (PNS)

Question 3

What comprises the central nervous system (CNS)?

Answer 3

brain and spinal cord

Question 4

What comprises the peripheral nervous system (PNS)?

Answer 4

cranial and spinal nerves

Question 5

This is a network of nerves that transmits messages to CNS. It links CNS to muscles and other organs.

Answer 5

PNS- peripheral nervous system

Question 6

A part of the nervous system that interprets messages relayed by the nerves and transmits them to other organs in the body.

Answer 6

Central nervous system (CNS)

Question 7

What are the important functions of the nervous system?

Answer 7

It collects and receives information from inside the body and from the outside environment to facilitate response. Responses are elicited from the receptors found on the sense organs. Receptors receive different information from the environment.

It directs thought processes such as memory, intelligence, and learning.

It controls movement and balance. When you play basketball, your nervous system sends messages to your muscle to dribble the ball.

Question 8

What is the specialized cells in the nervous system that store information and carry messages within the nervous system and between other body systems?

Answer 8

neurons or nerve cells

Question 9

How is neuron divided?

Answer 9

The neuron is divided into 3 parts

cell body
dendrite
axon

Question 10

What is the main part of the neuron that contains the nucleus, which houses the neuron’s genetic information?

Answer 10

cell body

Question 11

What are the branchlike extensions on the cell body that receives messages from other neurons?

Answer 11

Dendrites

Question 12

This extends from the cell body and often gives rise to many smaller branches before ending at nerve terminals.

Answer 12

axon

Question 13

This carries electrical messages away from the cell body and passes them to other cells and are wrapped with myelin sheath?

Answer 13

axon

Question 14

A fatlike substance that accelerates the transmission of nerve impulse along axons?

Answer 14

myelin sheath

Question 15

What is the difference between myelinated axons from unmyelinated axons?

Answer 15

Myelinated axons transmit nerve impulse faster than those that are not.

Question 16

What are the classification of neurons that are based on the direction in which they send information to and from the body?

Answer 16

sensory neuron
motor neuron
interneuron

Question 17

What is the function of the sensory neuron?

Answer 17

Sends information from the environment (sensory receptors) toward the brain and spinal cord (CNS).

Question 18

What is the function of the motor neuron?

Answer 18

Carries messages away from the brain or spinal cord (CNS) to your muscles or glands causing them to react or move.

Question 19

What is the function of the interneuron?

Answer 19

Sends information between sensory neurons and motor neurons; most interneurons are located in the CNS.

Question 20

The tiny space that separates neurons?

Answer 20

Synapse

Question 21

A neurotransmitter that has been released by axon when stimulated?

Answer 21

Acetylcholine

Question 22

What organ is protected by the skull and surrounded by fluid which cushions it from injury?

Answer 22

brain

Question 23

The support cells in the nervous system that support, protect, and maintain the functioning of neurons?

Answer 23

Glia

Question 24

Is an amazing organ that is responsible for higher thinking processes including memory, judgement, and reason. This also control body movement and regulates body processes. The emotions and feelings are also controlled by this organ?

Answer 24

brain

Question 25

How is the brain divided?

Answer 25

cerebrum cerebellum brain stem

Question 26

This is the largest part of the brain?

Answer 26

cerebrum

Question 27

How is the cerebrum divided?

Answer 27

Divided into two cerebral hemispheres: left hemisphere right hemisphere

Question 28

The artistic, aesthetic, creativity, musical, and visual-spatial capabilities are all controlled by?

Answer 28

The right hemisphere

Question 29

Responsible for language, reasoning and analytical abilities are controlled by?

Answer 29

The left hemisphere

Question 30

The part of the brain that is located under the cerebrum?

Answer 30

cerebellum

Question 31

The part of the brain that coordinates muscle movements and also helps maintain posture and balance.

Answer 31

cerebellum

Question 32

The part of the brain that carries out higher thought processes that allow you to learn, make judgement and decision, solve problems, and recall?

Answer 32

cerebrum

Question 33

The part of the brain that receives sensory impulses from joint and muscles to help your body move precisely and smoothly.

Answer 33

cerebellum

Question 34

The part of the brain that connects the brain and spinal cord.

Answer 34

brain stem

Question 35

The part of the brain that controls the involuntary activities required for life such as breathing, digestion, and heart rate?

Answer 35

brain stem

Question 36

What are the 3 major parts of the brain stem?

Answer 36

midbrain pons medulla oblongata

Question 37

The part of the brain stem that controls reflex actions responsible for eye movement and changes the size of pupil to regulate the amount of light penetrating the eye.

Answer 37

midbrain

Question 38

The part of the brain stem that has a reflex center for head movement, regulates breathing in response to visual and auditory stimuli, and passes signals between the brain and the spinal cord.

Answer 38

pons

Question 39

The part of the brain stem that connects the brain to the spinal cord; houses control centers for involuntary and life-sustaining functions such as blood pressure, breathing, swallowing, vomiting, hiccup, sneezing, and coughing.

Answer 39

medulla oblongata

Question 40

Is a long, tube like structure that bridges impulses between the brain and the body?

Answer 40

Spinal cord

Question 41

The spinal cord also controls involuntary movements called?

Answer 41

reflexes

Question 42

How many pairs of cranial nerves that are connected to the brain?

Answer 42

12 pairs of cranial nerves

Question 43

How many pairs of spinal nerves connected to the spinal cord?

Answer 43

31 pairs of spinal nerves

Question 44

How is the Peripheral Nervous System divided into?

Answer 44

somatic nervous system autonomic nervous system

Question 45

Part of the peripheral nervous system that regulates all voluntary movements of the body?

Answer 45

somatic nervous system

Question 46

Part of the peripheral nervous system that controls automatic or involuntary movements?

Answer 46

autonomic nervous system

Question 47

The autonomic nervous system is subdivided into?

Answer 47

sympathetic nervous system parasympathetic nervous system

Question 48

A subdivision of autonomic nervous system that prepares the body for action and stress (fight or flight).

Answer 48

sympathetic nervous system

Question 49

A subdivision of autonomic nervous system relaxes the body to conserve energy (rest and digest or feed and breed)

Answer 49

parasympathetic nervous system

Question 50

These are specialized organs that detect external stimuli from the environment?

Answer 50

Sense organs

Question 51

What does the sense organs contain that respond to stimuli and transmit data to the brain?

Answer 51

sensory receptors

Question 52

What are different types of sensory receptors?

Answer 52

photoreceptor chemoreceptor mechanoreceptor thermoreceptor pain receptor

Question 53

What are different types of sense organs?

Answer 53

eyes nose tongue ears skin

Question 54

A type of sensory receptor that detects light?

Answer 54

photoreceptor

Question 55

A type of sensory receptor that detects chemicals?

Answer 55

chemoreceptor

Question 56

A type of sensory receptor that responds to pressure, movement, and tension?

Answer 56

mechanoreceptor

Question 57

A type of sensory receptor that detects temperature?

Answer 57

thermoreceptor

Question 58

A type of sensory receptor that responds to heat, cold, and pressure?

Answer 58

pain receptor

Question 59

Summarize how the sense organs coordinate with the nervous system to prompt a response when you touched a hot object?

Answer 59

1. A painful stimulus activates a sensory neuron. 2. The signal is transmitted by the sensory neuron to the spinal cord. 3. The signal is transmitted to an interneuron then to a motor neuron. 4. The motor neuron stimulates the muscle. 5. The muscle causes a response.

Question 60

A term for a quick automatic reaction to a stimulus.

Answer 60

reflex

Question 61

What are the possible disorders of the nervous system?

Answer 61

Cerebral palsy Multiple sclerosis Parkinson's disease Epilepsy Paralysis Concussion Mental retardation

Question 62

A disability attributed to a damage in the brain occurring before, during, or immediately after birth. This condition is associated with neurological and mental problems.

Answer 62

Cerebral palsy

Question 63

A chronic disease affecting the nervous system resulting from damaged and hardened myelin sheath surrounding the nerves of the brain and spinal cord.

Answer 63

Multiple sclerosis

Question 64

What are some of the symptoms of multiple sclerosis?

Answer 64

Visual disturbances Muscle weakness Memory problems

Question 65

A degenerative disorder that affects movement.

Answer 65

Parkinson's disease

Question 66

What does a person with Parkinson's disease experience?

Answer 66

The person with Parkinson's disease experiences shaking or tremor, stiff muscles, and slow movement.

Question 67

A disease characterized by overactive electrical discharges causing temporary communication problem between the nerve cell. This causes seizures.

Answer 67

Epilepsy

Question 68

A damage or injury of the spinal cord. It is accompanied by sensory loss and involves loss of muscle function.

Answer 68

Paralysis

Question 69

A type of internal head injury that causes temporary loss of brain function.

Answer 69

Concussion

Question 70

This refers to a brain injury that prevents the brain from developing normally.

Answer 70

Mental retardation

Question 71

What are some healthful ways to help maintain a functional nervous system.

Answer 71

Avoiding drugs and alcohol Getting enough sleep

Question 72

What does a doctor provides to patients to remind them of the right amount of drugs and medicines to take for a period of time?

Answer 72

prescription guides

Question 73

A type of drug that speeds up the activity of the nervous system?

Answer 73

caffeine

Question 74

What is an addictive substance found in cigarettes?

Answer 74

nicotine

Question 75

What is a drug that slows down the activity of the nervous system?

Answer 75

alcohol