Nervous Systems Flashcards

0
Q

What does the sensory input do?

A

Conduction of signals from sensory receptors to integration centers

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1
Q

What are the three overlapping functions of the nervous system?

A

Sensory input, integration, motor output.

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2
Q

What is the function of integration

A

Information from stimulation of the sensory receptors is interpreted and associated with responses of the body

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3
Q

Where is integration carried out?

A

Central nervous system

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4
Q

What does motor output do?

A

Conducts signals from the integration center to effector cells that actually carry out the body’s responses to stimuli

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5
Q

Signals are conducted by what?

A

Nerves

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6
Q

Where is sensory input and motor output carried out?

A

Peripheral nervous system

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7
Q

Where does the spinal cord convey information from?

A

Brain to the PNS

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8
Q

What is a reflex?

A

The body’s automatic response to a stimulus

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9
Q

What do glial cells do?

A

Provide structure and insulate neurons

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10
Q

What do sensory neurons do?

A

Detect information from the outside world or internal body conditions

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11
Q

Sensory neurons are what type of neuron?

A

Afferent

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12
Q

What do motor neurons do?

A

Send signals away from CNS to elicit response

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13
Q

Motor neurons are what type of neurons

A

Efferent

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14
Q

What is the purpose of interneurons

A

Form connections between other neurons.

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15
Q

What type of nervous system do cnidarians have?

A

Nerve net

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16
Q

What is a nerve net system

A

Neurons connect to each other in a network, activate at the same time.

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17
Q

Echinoderms have what type of nervous system

A

Nerve ring around mouth connected to larger radial nerves extending to arms

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18
Q

How does the mouth and arms operate in Echinoderms?

A

Independently of each other

19
Q

Planarians have what type of nervous system

A

Nerve cords that are connected by transverse nerves. Collection of neurons in head form cerebral ganglia

20
Q

Annelids have what type of brain?

A

Rudimentary

21
Q

Ventral nerve cords in Annelids have ganglia located where?

A

In each segment

22
Q

The brains of insects is characterized by what?

A

Several subdivisions with different functions

23
Q

What type of brain do simple mollusks have?

A

Pair of anterior ganglia with paired nerve cords

24
Advanced mollusks have what type of brain?
Well developed with subdivisions
25
Chordates have what two type of nervous systems
Central and peripheral
26
Myelinated axons grouped together to form tracts of
White matter
27
Neuronal cell bodies, dendrites and some unmyelinated axons form
Gray matter
28
What are the parts of the forebrain
Cerebrum and the diencephalon
29
The cerebrum is made up of
Cerebral cortex, white matter, basal nuclei
30
The cerebrum contains what
The most advanced integrating centers. Learning, emotion, memory, perception.
31
What are the three parts of the diencephalon
Epithalamus, thalamus, hypothalamus
32
The epithalamus is made up of what
The pineal gland and cerebrospinal fluid
33
What is the function of the thalamus
Main input center for sensory information and main output center for motor information
34
What does the hypothalamus do?
Regulates homeostasis and basic survival behaviors such as feeding, fighting, flight, and reproducing. Circadian rhythm.
35
What is the function of the brain stem
Coordinates and conducts information between brain centers
36
What does the midbrain do
Contains centers for receipt and integration of sensory information and sends to forebrain.
37
What are the parts of the hindbrain
Pons, medulla oblongata, cerebellum
38
What does the pons do?
Regulates breathing centers in the medulla
39
What are the functions of the medulla oblongata
Control breathing, cardiovascular activity, swallowing, vomiting, digestion and homeostatic processes.
40
The brain stem is made up of what two sections
Pons, medulla oblongata
41
What does the cerebellum do?
Controls movement and balance, helps learn and remember motor skills.
42
What is the frontal lobe responsible for
Conscious thought and social awareness
43
Parietal lobe is responsible for
Receives and interprets sensory input from visual pathways and somatic pathways.
44
What does the occipital lobe do?
Vision and color recognition
45
Temporal lobe does what
Language, hearing and some types of memory.