Test: Nerv Sys Quiz


Nerv Sys QuizVersion en ligne Nerv Sys Quiz par JB 1 Which 2 describe the somatic division? Choose one or more answers a sympathetic b sensory c parasympathetic d motor 2 How many spinal nerves and cranial nerves are there? a 32 pairs of spinal; 11 pairs of cranial b 32 pairs of cranial; 11 pairs of spinal c 31 pairs of spinal; 12 pairs of cranial d 31 pairs of cranial; 12 pairs of spinal 3 Which 2 describe the autonomic division? Choose one or more answers a sympathetic b sensory c parasympathetic d motor 4 Which of these IS NOT part of the parasympathetic system? a counters the flight or fight response b speeds up certain processes and slows down the processes that aren't needed for that situation c 'rest and digest' actions d conserves and restores 5 Which of the following IS NOT part of the ANS? a counters flight or fight response b maintains homeostasis c is always active d responds by coordinating both conscious and unconscious activity 6 Which 2 of these describe the sympathetic division? Choose one or more answers a Controls fight or flight response (involuntary responses). b Counters fight or flight response c Enables rest and digest actions d Speeds up certain processes and slows down the processes that aren't needed for that situation 7 Which of these two describe the PNS? a All the nerves are contained b All the nerves branch out in 8 Which is correct? The ANS... a supplies involuntary control to internal organs b is in charge of voluntary control 9 Which of these DOES NOT describe the enteric nervous system? a Conveys sensory information from areas of voluntary control b Regulates digestive function of the gastrointestinal tract c Extends from the oesophagus to the rectum d Comprises sympathetic and parasympathetic fibres (afferent, efferent and interneurons) within the hollow muscular organs of the digestive tract 10 Which of the senses does the somatic nervous system NOT transmit sensory information from? Written answer 11 Which of these describes the somatic nervous system? Choose one or more answers a supplies motor impulses from the CNS to the skeletal muscles b is involved in involuntary reflex movements via the reflex arc c integrates sensory info collected by the PNS d conscious control of the skeletal muscles 12 The somatic nervous system is responsible for what division? Written answer 13 What are the 2 types of cells that make up nervous tissue? Written answer 14 Which of the characteristics describe the glial cell? Choose one or more answers a neurons can't function without them b it's the nerve glue c pump blood to the heart d are surrounded by connective tissue 15 Which of the following ARE NOT found in the neuron cell body (soma)? Choose one or more answers a Astrocytes b Centrosome c Osteoblasts d Microglia e Oligodendrocyctes f Ependymal cells 16 Which of the following IS NOT part of glial cells found in the CNS? a Oligodendrocyctes b Ependymal cells c Schwann cells d Microglia e Astrocytes 17 Which of the 3 following identifies Schwann cells? Choose one or more answers a myelinate neurons in the PNS b act as protective, cushioning cells c the major glial cell type in the PNS d guide the regrowth of damaged axons 18 What are satellite cells in the PNS glial cells similar to? Written answer 19 Name three things that the neurons do: Choose one or more answers a Forms the dominant component of our brain and spinal cord and nerves b Designed to receive, process and send information c Transmit information rapidly to different parts of the brain and nervous system d Ensure rapid and efficient conduction of electrical impulses without a loss of charge 20 Which of the following 2 characteristics describe dendrites? Choose one or more answers a Transmits impulses to other nerve cells or to other cell types (muscles, glands) b Receive impulses from other neurons and transmit them to the cell body c Carries nerve impulses away from the cell body and towards the axon terminal d Thin branches extending from the cell body 21 Which of the following 2 characteristics describe myelin? Choose one or more answers a not a continuous sheath - interrupted by small gaps called nodes of Ranvier b receive impulses from other neurons and transmit them to the cell body c insulating layer of fat around the axon of myelinated nerves d carries nerve impulses away from the cell body and towards the axon terminal 22 Which 2 describe axons? Choose one or more answers a Can be very short or over a metre b Transmits impulses to other nerve cells or to other cell types (muscles, glands) c Harbour a high density of ion channels d Ensures rapid and efficient conduction of electrical impulses without a loss of charge 23 Which one describes the nodes of ranvier? a Receive impulses from other neurons and transmit them to the cell body b Carries nerve impulses away from the cell body and towards the axon terminal c Contain a high density of ion channels allowing movement of ions and thereby the generation of an action potential d Act as protective, cushioning cells 24 Which 2 cells types form myelin sheath in the nervous system? a Microglia b Oligodendrocytes c Schwann cells d Satellite cells 25 What is the destruction of the myelin sheath called? Written answer 26 Name 2 medical conditions which involve damage to the myelin of neurons Written answer 27 Which of the following describe an axon terminal? Choose one or more answers a They're information messengers b Stores neurotransmitters in synaptic vesicles c Contain a high density of ion channels d Could be adjacent to the target tissue innervated by the neuron e Near the dendrites or cell body of another neuron 28 What are synapses? a Three layers of tissue that cover and protect the brain and spinal cord b They carry nerve impulses away from the cell body c The places where neurons connect and communicate with each other d Allow for ions to diffuse in and out of the neuron 29 Which 2 terminals are synapses made up of? Written answer 30 What is an action potential? Written answer 31 Where is the presynaptic terminal? Written answer 32 What is essential to electrical changes in neurons? Written answer 33 What are ion channels? Tick all that apply Choose one or more answers a They are active conduits b Proteins within the cell membrane that are selectively permeable c They use passive diffusion to go through their ion channel d All of them are always closed and require a signal to open 34 What is found in higher concentration outside the cell; K+ or Na+ with Cl- Written answer 35 In the resting membrane potential, what happens first: potassium moves out or sodium moves in? Written answer 36 If a neuron reaches -56mV, will action potential be realised? a Yes b No 37 What is depolarisation? a A rapid sequence of changes in the voltage across a membrane b A change in the electrical charge distribution in a cell which makes the inside of the cell less negative than the outside c The electrical potential difference across the membrane of a nerve cell that is not actively sending signals d The state after the action potential 38 What is the refractory period? a The electrical potential difference across the membrane of a nerve cell that is not actively sending signals b The way an electrical impulse skips from node to node down the full length of an axon c An all or nothing event initiated by the opening of sodium ion channels within the plasma membrane d The nerve is not able to receive another impulse and prevents the impulse from travelling backwards along the axon 39 Which 2 descriptions match saltatory conduction? Choose one or more answers a A stimulus initiates an impulse and the membrane potential becomes more positive b Action potentials travelling down the axon jump from node to node c The process of restoring the polarised condition across the plasma membrane of a cell d Positive ions are pushed towards the more negative environment at the next node Feedback 25 demyelination 26 Multiple sclerosis and Guillain Barre syndrome 29 a presynaptic and postsynaptic terminal 30 It is a rapid sequence of changes in the voltage across a membrane, the spike of the electric signal that happens in the presynaptic signal 31 At the end of an axon 32 The movement of ions 33 Proteins and passive diffusion

1

Which 2 describe the somatic division?

Choose one or more answers

a

sympathetic

b

sensory

c

parasympathetic

d

motor

2

How many spinal nerves and cranial nerves are there?

a

32 pairs of spinal; 11 pairs of cranial

b

32 pairs of cranial; 11 pairs of spinal

c

31 pairs of spinal; 12 pairs of cranial

d

31 pairs of cranial; 12 pairs of spinal

3

Which 2 describe the autonomic division?

Choose one or more answers

a

sympathetic

b

sensory

c

parasympathetic

d

motor

4

Which of these IS NOT part of the parasympathetic system?

a

counters the flight or fight response

b

speeds up certain processes and slows down the processes that aren't needed for that situation

c

'rest and digest' actions

d

conserves and restores

5

Which of the following IS NOT part of the ANS?

a

counters flight or fight response

b

maintains homeostasis

c

is always active

d

responds by coordinating both conscious and unconscious activity

6

Which 2 of these describe the sympathetic division?

Choose one or more answers

a

Controls fight or flight response (involuntary responses).

b

Counters fight or flight response

c

Enables rest and digest actions

d

Speeds up certain processes and slows down the processes that aren't needed for that situation

7

Which of these two describe the PNS?

a

All the nerves are contained

b

All the nerves branch out in

8

Which is correct? The ANS...

a

supplies involuntary control to internal organs

b

is in charge of voluntary control

9

Which of these DOES NOT describe the enteric nervous system?

a

Conveys sensory information from areas of voluntary control

b

Regulates digestive function of the gastrointestinal tract

c

Extends from the oesophagus to the rectum

d

Comprises sympathetic and parasympathetic fibres (afferent, efferent and interneurons) within the hollow muscular organs of the digestive tract

10

Which of the senses does the somatic nervous system NOT transmit sensory information from?

Written answer

11

Which of these describes the somatic nervous system?

Choose one or more answers

a

supplies motor impulses from the CNS to the skeletal muscles

b

is involved in involuntary reflex movements via the reflex arc

c

integrates sensory info collected by the PNS

d

conscious control of the skeletal muscles

12

The somatic nervous system is responsible for what division?

Written answer

13

What are the 2 types of cells that make up nervous tissue?

Written answer

14

Which of the characteristics describe the glial cell?

Choose one or more answers

a

neurons can't function without them

b

it's the nerve glue

c

pump blood to the heart

d

are surrounded by connective tissue

15

Which of the following ARE NOT found in the neuron cell body (soma)?

Choose one or more answers

a

Astrocytes

b

Centrosome

c

Osteoblasts

d

Microglia

e

Oligodendrocyctes

f

Ependymal cells

16

Which of the following IS NOT part of glial cells found in the CNS?

a

Oligodendrocyctes

b

Ependymal cells

c

Schwann cells

d

Microglia

e

Astrocytes

17

Which of the 3 following identifies Schwann cells?

Choose one or more answers

a

myelinate neurons in the PNS

b

act as protective, cushioning cells

c

the major glial cell type in the PNS

d

guide the regrowth of damaged axons

18

What are satellite cells in the PNS glial cells similar to?

Written answer

19

Name three things that the neurons do:

Choose one or more answers

a

Forms the dominant component of our brain and spinal cord and nerves

b

Designed to receive, process and send information

c

Transmit information rapidly to different parts of the brain and nervous system

d

Ensure rapid and efficient conduction of electrical impulses without a loss of charge

20

Which of the following 2 characteristics describe dendrites?

Choose one or more answers

a

Transmits impulses to other nerve cells or to other cell types (muscles, glands)

b

Receive impulses from other neurons and transmit them to the cell body

c

Carries nerve impulses away from the cell body and towards the axon terminal

d

Thin branches extending from the cell body

21

Which of the following 2 characteristics describe myelin?

Choose one or more answers

a

not a continuous sheath - interrupted by small gaps called nodes of Ranvier

b

receive impulses from other neurons and transmit them to the cell body

c

insulating layer of fat around the axon of myelinated nerves

d

carries nerve impulses away from the cell body and towards the axon terminal

22

Which 2 describe axons?

Choose one or more answers

a

Can be very short or over a metre

b

Transmits impulses to other nerve cells or to other cell types (muscles, glands)

c

Harbour a high density of ion channels

d

Ensures rapid and efficient conduction of electrical impulses without a loss of charge

23

Which one describes the nodes of ranvier?

a

Receive impulses from other neurons and transmit them to the cell body

b

Carries nerve impulses away from the cell body and towards the axon terminal

c

Contain a high density of ion channels allowing movement of ions and thereby the generation of an action potential

d

Act as protective, cushioning cells

24

Which 2 cells types form myelin sheath in the nervous system?

a

Microglia

b

Oligodendrocytes

c

Schwann cells

d

Satellite cells

25

What is the destruction of the myelin sheath called?

Written answer

26

Name 2 medical conditions which involve damage to the myelin of neurons

Written answer

27

Which of the following describe an axon terminal?

Choose one or more answers

a

They're information messengers

b

Stores neurotransmitters in synaptic vesicles

c

Contain a high density of ion channels

d

Could be adjacent to the target tissue innervated by the neuron

e

Near the dendrites or cell body of another neuron

28

What are synapses?

a

Three layers of tissue that cover and protect the brain and spinal cord

b

They carry nerve impulses away from the cell body

c

The places where neurons connect and communicate with each other

d

Allow for ions to diffuse in and out of the neuron

29

Which 2 terminals are synapses made up of?

Written answer

30

What is an action potential?

Written answer

31

Where is the presynaptic terminal?

Written answer

32

What is essential to electrical changes in neurons?

Written answer

33

What are ion channels? Tick all that apply

Choose one or more answers

a

They are active conduits

b

Proteins within the cell membrane that are selectively permeable

c

They use passive diffusion to go through their ion channel

d

All of them are always closed and require a signal to open

34

What is found in higher concentration outside the cell; K+ or Na+ with Cl-

Written answer

35

In the resting membrane potential, what happens first: potassium moves out or sodium moves in?

Written answer

36

If a neuron reaches -56mV, will action potential be realised?

a

Yes

b

No

37

What is depolarisation?

a

A rapid sequence of changes in the voltage across a membrane

b

A change in the electrical charge distribution in a cell which makes the inside of the cell less negative than the outside

c

The electrical potential difference across the membrane of a nerve cell that is not actively sending signals

d

The state after the action potential

38

What is the refractory period?

a

The electrical potential difference across the membrane of a nerve cell that is not actively sending signals

b

The way an electrical impulse skips from node to node down the full length of an axon

c

An all or nothing event initiated by the opening of sodium ion channels within the plasma membrane

d

The nerve is not able to receive another impulse and prevents the impulse from travelling backwards along the axon

39

Which 2 descriptions match saltatory conduction?

Choose one or more answers

a

A stimulus initiates an impulse and the membrane potential becomes more positive

b

Action potentials travelling down the axon jump from node to node

c

The process of restoring the polarised condition across the plasma membrane of a cell

d

Positive ions are pushed towards the more negative environment at the next node

Feedback

25

demyelination

26

Multiple sclerosis and Guillain Barre syndrome

29

a presynaptic and postsynaptic terminal

30

It is a rapid sequence of changes in the voltage across a membrane, the spike of the electric signal that happens in the presynaptic signal

31

At the end of an axon

32

The movement of ions

33

Proteins and passive diffusion

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