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Bio chapter 43 (exam 3)

Total questions: 95

Worksheet time: 2hrs 35mins

Name
Class
Date
1.

Name the term:

-Tiny spaces between neurons.

a)

Synapses

b)

Electrochemical

c)

Neurotransmitters

d)

Resting Potential

2.

What are the TWO basic types of nervous systems?

a)

nerve net

b)

central nervous system

c)

CNS

d)

PNS

3.

what do sensory neurons do?

a)

carry impulses to central nervous system (CNS)

b)

carry impulses from CNS to effectors (muscles and glands)

c)

provide reflexes and associative functions (learning and memory)

4.

what do motor neurons do?

a)

carry impulses to central nervous system (CNS)

b)

carry impulses from CNS to effectors (muscles and glands)

c)

provide reflexes and associative functions (learning and memory)

5.

what do Interneurons do?

a)

carry impulses to central nervous system (CNS)

b)

carry impulses from CNS to effectors (muscles and glands)

c)

provide reflexes and associative functions (learning and memory)

6.

In vertebrates the CNS consists of

a)

brain and spinal cord

b)

brain and neurons

c)

neurons and spinal cord

d)

only brain

7.

what are tiny spaces between neurons?

a)

synapses

b)

electrical signals

c)

chemical signals

d)

axons

8.

fill in the blank

Information travels by ____ within a neuron until it gets to the end of an axon

a)

synapses

b)

electrical signals

c)

chemical signals

d)

axons

9.

fill in the blank

Information crosses synapses via ____ (neurotransmitters)

a)

synapses

b)

electrical signals

c)

chemical signals

d)

axons

10.

what is the term?

exists when there is a separation of charged particles across some space

a)

electrical potential

b)

electrical gradient

c)

electrical signal

d)

synapses

11.

fill in the blank

when voltage exists charged particles flow down their ____

a)

electrical potential

b)

electrical gradient

c)

electric current

d)

none of the above

12.

what is the structure of a neuron?

a)

a cell body or soma

b)

dendrites

c)

axons

d)

all of the above

13.

what term applies to converting chemical signals?

a)

dendrite

b)

cell body

c)

axon

14.

what term applies to integrating incoming electrical signals?

a)

dendrite

b)

cell body

c)

axons

15.

what conducts electrical signals?

a)

dendrite

b)

cell body

c)

axon

16.

When an electrical potential exists across a plasma membrane, the separation of charges is a ____?

a)

membrane potential

b)

electrical gradient

c)

volt

d)

axon

17.

membrane potentials are a form of a?

a)

potential energy

b)

electrical energy

c)

chemical energy

d)

electrical potential

18.

For Resting Potential of a Neuron is K+ greater INSIDE CELL or OUTSIDE CELL ?

a)

inside cell

b)

outside cell

19.

For Resting Potential of a Neuron is Na+ greater INSIDE CELL or OUTSIDE CELL ?

a)

inside cell

b)

outside cell

20.

when a neuron is NOT communicating with other cells, the difference in charge across its membrane is the ?

a)

resting potential

b)

membrane potential

c)

electrical potential

d)

chemical potential

21.

The membrane potential at which a particular type of ion or other particle does not diffuse through the membrane in either direction.

a)

equilibrium potential

b)

resting potential

c)

membrane potential

d)

electrical potential

22.

All action potentials for a given neuron are?

a)

identical in magnitude and duration

b)

different in magnitude and duration

c)

identical in magnitude and different duration

23.

ion exchange across membrane so less polarized

a)

depolarization

b)

threshold potential

c)

action potential

d)

CNS

24.

Action potential will not occur unless depolarization is great enough to reach ____

a)

threshold potential

b)

depolarization

c)

same magnitude

d)

repolarization

25.

action potentials are always propagated down the?

a)

ENTIRE length of the axon

b)

HALF length of the axon

c)

1/4 length of the axon

d)

none of the above

26.

action potential begins when?

a)

Na flows into the neuron making it more POSITIVE inside axon

b)

K flows into the neuron making it more POSITIVE inside axon

c)

Na flows into the neuron making it more NEGATIVE inside axon

d)

K flows into the neuron making it more NEGATIVE inside axon

27.

What are the THREE phases of action potential?

a)

depolarization

b)

repolarization

c)

hyperpolarization

d)

threshold potential

28.

During the depolarization phase what happens?

a)

the membrane potential changes from highly negative, crosses zero, and then is briefly positive

-Na outside cell 

b)

changes the membrane potential back to negative

-Na leaves again

c)

when the membrane potential is slightly more negative than the resting potential

29.

during the repolarization phase what heppens

a)

the membrane potential changes from highly negative, crosses zero, and then is briefly positive

-Na outside cell 

b)

changes the membrane potential back to negative

-Na leaves again

c)

when the membrane potential is slightly more negative than the resting potential

30.

during the hyperpolarization phase what happens ?

a)

the membrane potential changes from highly negative, crosses zero, and then is briefly positive

-Na outside cell 

b)

changes the membrane potential back to negative

-Na leaves again

c)

when the membrane potential is slightly more negative than the resting potential

31.

Voltage-Gated Channels cause what?

a)

depolarization

b)

hyperpolarization

c)

repolarization

32.

what term applies to membrane proteins that open and close in response to changes in membrane voltage

a)

voltage gate channels

b)

ion channels

c)

stimulated ions

33.

voltage-gated Na+ sodium channels are?

a)

once opened & closed, they can't be opened again for a short period of time

b)

opened with a delay

34.

voltage-gated K+ potassium channels

a)

once opened & closed, they can't be opened again for a short period of time

b)

opens with a delay

35.

Why don't action potentials propagate back up the axon in the direction of the cell body?

a)

because the "upstream" voltage-gated sodium channels in the direction of the cell body, are in the refractory state

b)

because the occurrence of an event make the same event more likely to occur

c)

because Na and Cl ions are high

d)

because of the flow in electrical charge

36.

T/F?

Action potentials are all-or-none events.

a)

true

b)

false

37.

Fill in the blank:

During synapses, information travels by _____ within a neuron until it gets to the end of an axon.

a)

Electrical Signals

b)

Electrochemical Nature

c)

Resting Potential

d)

Neurotransmitters

38.

Neurotransmitters serve as...

a)

Neurons

b)

Action Potential

c)

Ligands

d)

Membrane Potentials

39.

Cause membrane to depolarize ( i.e. to move towards the threshold

potential ).

a)

Inhibitory postsynaptic potentials (IPSPs)

b)

Excitatory postsynaptic potentials (EPSPs)

40.

What is the term:

is a bundled group of axons that extend through body.

a)

Neurons

b)

Neurotransmitters

c)

Nerve

d)

Sensory Effectors

41.

Choose the Correct Option:

What includes the brain and the spinal cord

a)

CNS

b)

PNS

42.

All of these are the 4 main regions of the brain EXCEPT

a)

Temporal Lobe

b)

Frontal Lobe

c)

Occipital Lobe

d)

Parietal Lobe

e)

Corpus Lobe

43.

Controls the conscious thought and memory.

a)

Cerebrum

b)

Cerebellum

c)

Diencephalon

d)

Brain Stem

44.

Controls the coordination of complex motor patterns.

a)

Cerebrum

b)

Cerebellum

c)

Brain Stem

d)

Diencephalon

45.

Choose the correct division that correlates with each response:

-Stimulate Salivation

a)

Parasympathetic Division

b)

Sympathetic Division

46.

Choose the correct division that correlates with each response:

- Slow Heartbeat

-Constrict airways

a)

Parasympathetic Division

b)

Sympathetic Division

47.

Choose the correct division that correlates with each response:

- Stimulate activity of stomach

- Inhibit release of glucose; stimulate gallbladder

a)

Parasympathetic Division

b)

Sympathetic Division

48.

Choose the correct division that correlates with each response:

- Stimulate activity of intestines

-Contract bladder

- Promote erection of genitals

a)

Parasympathetic Division

b)

Sympathetic Division

49.

Choose the correct division that correlates with each response:

- dilate pupils

- Inhibit salivation

a)

Parasympathetic Division

b)

Sympathetic Division

50.

Choose the correct division that correlates with each response:

- Increase heartbeat

- Relax airways

- Inhibit activity of stomach

a)

Parasympathetic Division

b)

Sympathetic Division

51.

In the cerebrum, the spatial visualization and analysis is seen in which hemisphere

a)

Right Hemisphere

b)

Left Hemisphere

52.

Choose the correct option:

the nerves that branch out from the CNS components and extend to other parts of the body – to the sense organs, muscles, and glands, is in the...

a)

CNS ( Central Nervous System )

b)

PNS ( Peripheral Nervous System )

53.

Fill in the blanks:

The ___ transmits information too and from the ___.

a)

PNS, CNS

b)

CNS, PNS

c)

PNS, PNS

d)

CNS, CNS

54.

Choose the correct option:

Includes the nervous and ganglion is known as the...

a)

CNS

b)

PNS

55.

Choose the correct option:

The main functions of the ___ are voluntary movements such as chewing food, walking, and facial expressions.

a)

PNS

b)

CNS

56.

Choose the correct option:

regulates autonomic functions such as breathing, heart rate, and digesting – the unconscious bodily behaviors. 

a)

CNS

b)

PNS

57.

Choose the correct option:

___is responsible for coordinating INVOLUNTARY behaviors such as heart rate, breathing, and digestion. This system allows these important functions to take place WITHOUT CONSCIOUS THOUGHT, SO THEY WORK AUTOMATICALLY.

a)

Autonomic Nervous System

b)

Somatic Nervous System

58.

Choose the correct option:

___is associated with activities traditionally thought of as CONSCIOUS OR VOLUNTARY.  Is key for carrying messages throughout the body, in order to initiate and control movement.

a)

Autonomic Nervous System

b)

Somatic Nervous System

59.

Choose the correct option:

This system processes sensory information from external stimuli (e.g. through hearing, sight, and touch) as well as MOTOR information, which then carries signals to and from the CNS. 

a)

Autonomic Nervous System

b)

Somatic Nervous System

60.

True or False:

The PNS connects the CNS to the rest of the body. 

a)

True

b)

False

61.

In the cerebrum, language and math computation is seen in which hemisphere

a)

Right Hemisphere

b)

Left Hemisphere

62.

Choose the correct division that correlates with each response:

- Secrete epinephrine and norepinephrine ( hormones that stimulate activity )

- Promote ejaculation and vaginal contraction

a)

Parasympathetic Division

b)

Sympathetic Division

63.

Choose the correct division that correlates with each response:

- Stimulate release of glucose; inhibit gallbladder

- Inhibit activity of intestines

-Relax bladder

a)

Parasympathetic Division

b)

Sympathetic Division

64.

Choose the correct division that correlates with each response:

-Constrict Pupils

a)

Parasympathetic Division

b)

Sympathetic Division

65.

Choose the TWO correct options:

The Parasympathetic division is also known as the...

a)

Fight

b)

Flight

c)

Reset

d)

Digest

66.

Choose the term:

Transmits MOTOR information.

a)

Afferent Division

b)

Efferent Division

67.

Choose the term:

Transmits SENSORY information

a)

Afferent Division

b)

Efferent Division

68.

Choose the TWO correct options:

The Sympathetic Division is also known as the...

a)

Fight

b)

Flight

c)

Reset

d)

Digest

69.

The nervous system IS NOT under conscious control in the...

a)

Somatic Nervous System

b)

Autonomic Nervous System

70.

The nervous system IS under conscious control in the...

a)

Somatic Nervous System

b)

Autonomic Nervous System

71.

Information is translated to a chemical signal (neurotransmitter) at the synapse.

a)

Presynaptic Neuron

b)

Postsynaptic Neuron

72.

Information travels in the form of an electrical signal within a neuron (action potentials)

a)

Presynaptic Neuron

b)

Postsynaptic Neuron

73.

Neurons that connect the right and left cerebral hemispheres is called...

a)

Corpus Callosum

b)

Synapses

c)

CNS

d)

PNS

74.

Controls the information relay and control of homeostasis.

a)

Cerebrum

b)

Cerebellum

c)

Brain Stem

d)

Diencephalon

75.

Controls the information relay and center of autonomic control for heart, lungs, and the digestive system.

a)

Cerebrum

b)

Cerebellum

c)

Brain Stem

d)

Diencephalon

76.

Fill in the blank:

There is ____ main regions of the brain.

a)

One

b)

Two

c)

Three

d)

Four

77.

Choose the correct option:

sends information via ACTION potentials

a)

CNS

b)

PNS

78.

A rapid, temporary change in membrane potential.

a)

Neurons

b)

Action Potential

c)

Resting Potential

d)

Membrane Potentials

79.

Consists of neurons and supporting cells.

a)

Nervous System

b)

Digestive System

c)

Respiratory System

d)

Endocrine System

80.

Choose the correct TWO options:

Nervous system links...

a)

Sensory Receptors

b)

Motor Effectors

c)

Interneurons

d)

Sensory Neurons

e)

Motor Neurons

81.

True or False:

Neurons receive signals from many other neurons.

a)

True

b)

False

82.

Fill in the blank:

Vertebrates have ____ types of neurons.

a)

One

b)

Two

c)

Three

d)

Four

83.

Fill in the blank:

All animals must be able to respond to ____

a)

Enviornmental Stimuli

b)

Interneurons

c)

Sensory Neurons

d)

Motor Neurons

84.

True or False:

EPSPs and IPSPs act in concert and are graded (not all-or- nothing).

a)

True

b)

False

85.

Increase likelihood of action potential.

a)

Excitatory postsynaptic potentials (EPSPs)

b)

Inhibitory postsynaptic potentials (IPSPs)

86.

Can also be modulatory― modify a neuron’s response to other EPSPs or IPSPs.

a)

Membrane Potentials

b)

Action Potentials

c)

Resting Potentials

d)

Postsynaptic Potentials

87.

Decreasing likelihood of action potential.

a)

Excitatory postsynaptic potentials (EPSPs)

b)

Inhibitory postsynaptic potentials (IPSPs)

88.

Cause membrane to be hyper polarized.

a)

Excitatory postsynaptic potentials (EPSPs)

b)

Inhibitory postsynaptic potentials (IPSPs)

89.

True or False:

Postsynaptic Potentials are caused by Neurotransmitters.

a)

True

b)

False

90.

Fill in the blank:

Effects of _____ are variable: either make action potentials more likely (excitatory) or less likely (inhibitory) in postsynaptic cell.

a)

PNS

b)

Neurotransmitters

c)

Synapses

d)

CNS

91.

What is the term:

_____ bind ligand-gated ion channels, causing ions to flow into postsynaptic cell

a)

Synapses

b)

Neurotransmitters

c)

Action Potential

d)

Resting Potential

92.

True or False:

Neurotransmitter effects are temporary; they get taken back by presynaptic cell and reused.

a)

True

b)

False

93.

What is the term:

The cell on the receiving end of the synapse is called

a)

Neurotransmitters

b)

Ligands

c)

Postsynaptic Cell

d)

Action Potential

94.

True or False:

Information crosses synapses via chemical signals also known as (neurotransmitters).

a)

True

b)

False

95.

What types of organisms have neurons and muscle cells?

a)

all animals except sponges

b)

all animals except whales

c)

all animals except lizards

d)

all animals except birds