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A&P test #1 > Chapter 6 > Flashcards

Chapter 6 Flashcards

1
Q

The _______ system links us with the outside world and coordinates the
activities of the other body systems.
a. endocrine
b. nervous
c. circulatory
d. reproductive

A

b. nervous

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2
Q

Together with the endocrine system, the nervous system works
continuously to preserve _______.
a. homeostasis
b. heterostasis
c. neurons
d. equilibrium

A

a. homeostasis

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3
Q

The central nervous system (CNS) consists of the _______ and _______.
a. brain; cranial nerves
b. spinal cord; cranial nerves
c. brain; spinal cord
d. spinal cord; touch receptors

A

c. brain; spinal cord

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4
Q

The two main divisions of the nervous system are the _______ and the _______.
a. autonomic nervous system; somatic
nervous system
b. central nervous system; autonomic
nervous system
c. peripheral nervous system; autonomic
nervous system
d. central nervous system; peripheral
nervous system

A

d. central nervous system; peripheral
nervous system

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5
Q

_______ are highly specialized to receive and transmit electrical and
chemical signals throughout the body.
a. Dendrites
b. Glial cells
c. Axons
d. Neurons

A

d. Neurons

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6
Q

_______ is an excellent electrical conductor that speeds the conduction of
nerve impulses.
a. Myelin
b. Scar tissue
c. Neurilemma
d. Ganglion

A

a. Myelin

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7
Q

In the disease multiple sclerosis, myelin deteriorates and is replaced by
________.
a. ganglia
b. glial cells
c. neurons
d. scar tissue

A

d. scar tissue

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8
Q

The first step in the neural signaling process is _______.
a. transmission along an afferent neuron
b. integration
c. reception
d. transmission along an efferent neuron

A

c. reception

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9
Q

The resting potential of a neuron is maintained by _______.
a. transmission of an impulse along the
neuron
b. sodium-potassium pumps in the plasma
membrane
c. passive ion channels
d. voltage-activated channels

A

b. sodium-potassium pumps in the plasma
membrane

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10
Q

Neurotransmitters are signaling molecules that _______.
a. transmit impulses along axons
b. activate sodium-potassium pumps
c. transmit neural signals across synapses
d. remove receptors from postsynaptic
neurons

A

c. transmit neural signals across synapses

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11
Q

In neural integration, _______ to determine an appropriate response.
a. EPSPs and IPSPs are summed
b. neurotransmitters activate sodium-
potassium pumps
c. endorphins activate synapses
d. the all-or-none response regulates
transmission

A

a. EPSPs and IPSPs are summed

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12
Q

Within the _______, most of the motor fibers cross, resulting in the right
side of the brain controlling the left side of the body and vice versa.
a. reticular formation
b. medulla
c. pons
d. midbrain

A

b. medulla

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13
Q

The main divisions of the brain are the _______.
a. medulla, pons, diencephalon, cerebrum,
and pituitary
b. medulla, cerebrum, cerebellum, thalamus,
pons, and midbrain
c. medulla, pons, midbrain, diencephalon,
cerebellum, and cerebrum
d. thalamus, medulla, cerebrum, and
hypothalamus

A

c. medulla, pons, midbrain, diencephalon,
cerebellum, and cerebrum

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14
Q

The hypothalamus is responsible for all of the following mechanisms
except _______.
a. appetite
b. maintaining fluid balance
c. regulation of body temperature
d. smooth movement of the body

A

d. smooth movement of the body

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15
Q

The part of the brain responsible for memory, language, and making
logical decisions is the _______.
a. pons
b. medulla
c. cerebrum
d. cerebellum

A

c. cerebrum

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16
Q

The _______ filters and evaluates incoming sensory information for
survival decisions.
a. hippocampus
b. cerebellum
c. medulla
d. amygdala

A

d. amygdala

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17
Q

Which of the following is/are functions of the spinal cord?
a. Reflex control center
b. Transmits information between the brain
and the peripheral nerves
c. Temperature regulation
d. Both A and B

A

d. Both A and B

18
Q

The outermost of the meninges is the _______, a tough, double-layered
membrane.
a. dura mater
b. pia mater
c. arachnoid
d. subarachnoid

A

a. dura mater

19
Q

The brain floats in _______, which protects it against mechanical injury.
a. blood
b. lymph fluid
c. cerebrospinal fluid
d. spinal fluid

A

c. cerebrospinal fluid

20
Q

A(n) _______ is a neural, automatic stimulus-response.
a. reflex action
b. frontal lobe action
c. sodium pump action
d. occipital lobe action

A

a. reflex action

21
Q

The sense organs, such as the eyes and ears, are part of the _______.
a. central nervous system
b. parasympathetic nervous system
c. peripheral nervous system
d. sympathetic nervous system

A

c. peripheral nervous system

22
Q

_______ are highly specialized to receive and transmit messages in the
form of neural impulses.
a. Glial cells
b. Neurons
c. Dendrites
d. Axons

A

b. Neurons

23
Q

The portion of the peripheral nervous system that is concerned with
changes in the outside environment is the _______ division.
a. autonomic
b. cranial nerve
c. somatic
d. axon

A

c. somatic

24
Q

_______ are specialized to receive neural impulses and transmit them to
the cell body.
a. Dendrites
b. Axons
c. Glials
d. Neurotransmitters

A

a. Dendrites

25
Q

A junction between two neurons is called a _______.
a. synaptic terminal
b. dendrite
c. ganglion
d. synapse

A

d. synapse

26
Q

_______ covers some neurons and speeds the conduction of nerve
impulses.
a. Myelin
b. GABA
c. Dopamine
d. Actin

A

a. Myelin

27
Q

_______ communicate with each other and carry out major regulatory
functions.
a. Myelin sheaths
b. Glial cells
c. Cell bodies
d. Axons

A

b. Glial cells

28
Q

In the central nervous system, bundles of axons are known as _______.
a. nerves
b. ganglia
c. tracts
d. nuclei

A

c. tracts

29
Q

When the voltage across the neuron membrane reaches threshold level,
_______.
a. an impulse is transmitted across the
synapse
b. the neuron achieves its resting potential
c. dendrites communicate
d. an action potential moves down the axon

A

d. an action potential moves down the axon

30
Q

During the transmission of an action potential, _______.
a. sodium-potassium pumps prevent sodium
from entering the cell
b. voltage-activated sodium channels open,
allowing sodium ions to pass into the cell
c. chloride ion channels begin to close
d. repolarization takes place ahead of the
action potential

A

b. voltage-activated sodium channels open,
allowing sodium ions to pass into the cell

31
Q

When an action potential reaches a synaptic terminal at the end of
presynaptic neurons, _______.
a. sodium-potassium pumps release sodium
into the synaptic cleft
b. calcium ions enter the synaptic terminal
and cause synaptic vesicles to release
neurotransmitter into the synaptic cleft
c. neurotransmitter binds to receptors on the
presynaptic neuron
d. the postsynaptic neuron releases
neurotransmitter

A

b. calcium ions enter the synaptic terminal
and cause synaptic vesicles to release
neurotransmitter into the synaptic cleft

32
Q

The midbrain contains centers for _______.
a. visual reflexes
b. respiration response
c. speech reflexes
d. regulating the autonomic system

A

a. visual reflexes

33
Q

Adrenergic neurons release _______.
a. endorphins
b. serotonin
c. dopamine
d. norepinephrine

A

d. norepinephrine

34
Q

The cerebellum is responsible for _______.
a. maintaining fluid balance
b. coordination of movement
c. regulation of body temperature
d. emotional behavior

A

b. coordination of movement

35
Q

The _______ is the largest and most prominent part of the human brain.
a. cerebellum
b. cerebrum
c. pons
d. midbrain

A

b. cerebrum

36
Q

Which of the following is not a function of the hypothalamus?
a. Controls the autonomic system
b. Links nervous and endocrine systems
c. Contains Broca’s speech area
d. Regulates body temperature

A

c. Contains Broca’s speech area

37
Q

The occipital lobe _______.
a. integrates auditory information
b. is located in the cerebellum
c. contains the prefrontal area
d. integrates visual information

A

d. integrates visual information

38
Q

The _______ plays an essential role in an infant’s bonding with a
caregiver.
a. frontal lobe
b. limbic system
c. hypothalamus
d. cerebellum

A

b. limbic system

39
Q

The reflex pathway depends on all of the following except _______.
a. reception of stimulus
b. transmission of information
c. integration
d. storage of memories

A

d. storage of memories

40
Q

Inside the skull, the two layers of the dura mater are separated in some
regions by large blood vessels called _______.
a. arachnoids
b. pia mater
c. sinuses
d. meninges

A

c. sinuses

A&P test #1 (8 decks)

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