B10 - The Human Nervous System

Question 1

Conditions inside the body are known as the ________ environment.

Answer 1

Internal.

Question 2

Your body cannot keep working if the ________ environment changes.

Answer 2

Internal.

Question 3

The balancing act of containing the bodies ________ environment is called ___________.

Answer 3

Internal…Homeostasis…

Question 4

________ only work at their best in specific conditions of Temperature and pH.

Answer 4

Enzymes.

Question 5

Enzymes control all the __________ of the Cell.

Answer 5

Functions.

Question 6

Examples of Internal Conditions that are controlled in the body:

Answer 6

Water Content, Body Temperature and Blood Glucose Concentration.

Question 7

Homeostasis involves __-__________ and control.

Answer 7

Co-Ordination.

Question 8

Detecting changes and responding to them involves _________ control systems.

Answer 8

Automatic.

Question 9

Automatic Control Systems include ________ responses in the Nervous System and ________ responses in the Hormone System.

Answer 9

Nervous…Chemical…

Question 10

_________ detect changes in the internal or external environment known as _______.

Answer 10

Receptors…Stimuli…

Question 11

Receptors are part of the ________ or _________ Control System in the body.

Answer 11

Nervous…Hormonal…

Question 12

__-__________ Centres are areas that receive and _______ the information given by the Receptors.

Answer 12

Co-Ordination…Process…

Question 13

Co-Ordination Centres send out a ______ and co-ordinate the ________ of the body.

Answer 13

Signal…Response…

Question 14

The _____ and ______ cord act as Co-Ordination Centres for both the _______ and ________ System.

Answer 14

Brain…Spinal…Nervous…Hormonal…

Question 15

Responses of the Effectors restore __________ in the body to the Optimum Level.

Answer 15

Conditions.

Question 16

Effectors are _______ or Glands that respond to a ________ that has been received.

Answer 16

Muscles…Stimulus…

Question 17

What are the Control Systems?

Answer 17

Receptors, Co-Ordination Centres and Effectors.

Question 18

The Nervous System carries _________ Signals known as Impulses that ______ to changes in the Environment.

Answer 18

Electrical…Changes…

Question 19

Receptor Cells have a ______, Cytoplasm and a ____ Membrane.

Answer 19

Nucleus…Cell…

Question 20

Receptor Cells are usually found in _______ Sense Organs, like the Eye or Skin.

Answer 20

Special.

Question 21

We have different types of _______ Receptors.

Answer 21

Sensory.

Question 22

When a _______ Receptor detects a Stimulus, information is sent as an Electrical _______ that passes along Special Cells called Neurones.

Answer 22

Sensory…Impulse…

Question 23

Thousands of Neurones clustered together are called ______.

Answer 23

Nerves.

Question 24

The Electrical Impulse travels along the ________ until it reaches the _______ _______ ______ (CNS).

Answer 24

Neurone…Central Nervous System…

Question 25

What is the Central Nervous System (CNS) made up of?

Answer 25

The Brain and Spinal Cord.

Question 26

Cells that carry ________ Impulses from your Sense Organs to your Central Nervous System (___) are called _______ Neurones.

Answer 26

Electrical...CNS...Sensory...

Question 27

The Brain receives and sends information back out along Special _____ called _____ Neurones.

Answer 27

Cells...Motor...

Question 28

Motor Neurones carry information from the _______ _______ ______ (CNS) to the rest of your body.

Answer 28

Central Nervous System.

Question 29

Motor ________ carry Electrical ________ to make the Effectors respond.

Answer 29

Neurones...Impulses...

Question 30

Muscles respond to _________ Impulses by contracting.

Answer 30

Electrical.

Question 31

Your Glands respond to Electrical _________ by releasing ________ Substances

Answer 31

Impulses...Chemical...

Question 32

How is your Nervous System summed up:

Answer 32

Stimulus --> Receptors --> CNS --> Effectors

Question 33

Automatic _________ are known as Reflexes.

Answer 33

Responses.

Question 34

Reflexes DO NOT involve the conscious part of the _____.

Answer 34

Brain.

Question 35

What the three types of Neurones?

Answer 35

Sensory, Motor and Relay.

Question 36

Relay Neurones connect a _____ Neurone and a _______ Neurone and are found in the Central Nervous System (___).

Answer 36

Sensory...Motor...CNS...

Question 37

An ________ Impulse passes from the Receptor along the _______ Neurone to the CNS, then passes a Relay _______ and back along the _____ Neurone. The Electrical _______ will arrive at the Effector organ. We call this pathway a Reflex ___.

Answer 37

Electrical...Sensory...Neurone...Motor...Impulse...Arc...

Question 38

What do Reflex Arc's do?

Answer 38

Bypass the conscious areas of the Brain.

Question 39

Neurones are ___ joined up directly together.

Answer 39

Not.

Question 40

There are 'junctions' between ________ called Synapses.

Answer 40

Neurones.

Question 41

Electrical ________ have to cross certain Synapses.

Answer 41

Impulses.

Question 42

The Reflex Pathway is: | Stimulus --> ________ --> Sensory _______ --> _____ Neurone --> Motor Neurone --> ________ --> Response

Answer 42

Receptor...Neurone...Relay...Effector...

Question 43

When you touch a hot object, a ________ in your skin is stimulated.

Answer 43

Receptor.

Question 44

When you touch a hot object, an ________ Impulse from a Receptor passes along a _______ Neurone to the Central Nervous System (CNS).

Answer 44

Electrical...Sensory...

Question 45

When an Electrical _______ from the Sensory _______ arrives at the Synapse with the _____ Neurone, a chemical is released.

Answer 45

Impulse...Neurone...Relay...

Question 46

The chemical made diffuses across the Synapse to the Relay _______ where it sets off an _________ Impulse that travels along the Relay Neurone.

Answer 46

Neurone...Electrical...

Question 47

When the Electrical _______ from the Chemical reaches the Synapse between the _____ Neurone and a _____ Neurone, another Chemical is released. Again this Chemical diffuses and creates another Electrical Impulse travelling down the Motor _______ to the Effector.

Answer 47

Impulse...Relay...Motor...Neurone...

Question 48

When the final Electrical _______ reaches the ________ Organ, it is stimulated to respond.

Answer 48

Impulse...Effector...