organisation of the nervous system Flashcards

1
Q

(structures of the nervous system)
brain

A

neurons enclosed in skull

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2
Q

(structures of the nervous system)
Spinal cord

A

connects to brain
enclosed in spinal cavity

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3
Q

(structures of the nervous system)
Nerves

A

bundles of neuronal axons
-cranial nerves emerges from brain
-spinal nerves emerges from spinal cords

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4
Q

(structures of the nervous system)
Ganglia

A

groups of cell bodies outside the brain/spinal cord

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5
Q

(structures of the nervous system)
Enteric plexuses

A

networks in digestive tract

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6
Q

(structures of the nervous system)
Sensory receptors

A

monitor changes in internal/external environments

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7
Q

(function of nerves)
Sensory receptors & afferent nerves

A

carry information to brain/spinal cord

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8
Q

(function of nerves)
Inter-neurones

A

integration (information processing)
-carried by short interneurons

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9
Q

(function of nerves)
motor activity-efferent (motor) nerve

A

carry signals from the brain/spinal cord to glands and muscles (effectors)

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10
Q

(Nervous System Organisation)
1. Central nervous system (CNS)

A

brain
spinal cord

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11
Q

(Nervous System Organisation)
2. Peripheral nervous system (PNS)

A

all nervous tissue outside the CNS

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12
Q

Name the 3 Peripheral nervous system

A

Somatic nervous system (SNS)
Autonomic nervous system (ANS)
Enteric nervous system (ENS)

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13
Q

(Peripheral nervous system)
Somatic nervous system (SNS)

A

sensory neurons in somatic receptors
motor neurons to skeletal muscle.

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14
Q

(Peripheral nervous system)
Autonomic Nervous System (ANS)

A

sensory neurons from autonomic receptors
motor neurons to smooth muscle, cardiac muscle and glands.

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15
Q

(Peripheral nervous system)
Enteric Nervous System (ENS)

A

sensory and motor neurons of the GI tract

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