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Homeostasis > Brain And Spine (CNS) > Flashcards

Brain And Spine (CNS) Flashcards

1
Q

What are the 3 layers of the brain?

A

Dura matter
Arachnoid matter
Pia matter

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2
Q

Dura matter

A

Outermost layer
Blood vessels
Nerves

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3
Q

Arachnoid matter

A

No blood vessels

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4
Q

Pis matter

A

Contains nerves and blood vessels to nourish cells of brain and spinal chord

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5
Q

What is cerebrospinal fluid?

A

Between arachnoid and pia patter

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6
Q

Describe the characteristics of the spinal chord

A

-nerve column passes from brain down vertebral canal
-31 segments, each with pair of spinal nerves
FUNCTION: conduct nerve impulses, centre for spinal reflexes

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7
Q

Differ between cervical enlargement and lumbar enlargement

A

Cervical: supplies nerves to upper limbs (neck)
Lumbar:supplies nerves to lower limbs (lower back)

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8
Q

What are meninges?

A

Membranes located between bones and soft tissue of nervous system

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9
Q

Sensory nerves vs motor nerves

A

Sensory: enter though DORSAL roof ganglia, carry messages TO the brain

Motor: exit through VENTRAL root ganglia, carry messages FROM the brain

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10
Q

What are the 3 major parts of the brain?

A

Cerebrum
Cerebellum
Brain stem

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11
Q

Cerebrum

A

Wrinkly part, largest

Sensory and motor functions, higher mental function (memory and reasoning)

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12
Q

Cerebellum

A

Voluntary muscles, balance and coordination

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13
Q

Brain stem

A

Regulate visceral functions, controls autonomic functions (ex heart and lungs)

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14
Q

How are the cerebral hemispheres and the corpus callosum related?

A

The cerebral hemispheres are the left and right side of brain, the corpus callosum connects these hemispheres

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15
Q

Name the lobes of the brain

A

Frontal lobe
Parietal lobe
Occipital lobe
Temporal lobe

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16
Q

Frontal lobe

A

Reasoning, thinking, language, motor areas controlling voluntary muscle

17
Q

Parietal lobe

A

Touch, temperature, pain, relation of body parts (somatosensory) and emotions

18
Q

Occipital lobe

A

Visual information

19
Q

Temporal lobe

A

Hearing, vision, memory, interpreting sensory information

20
Q

What is in the diencephalon ?

A

Thalamus- relay station

Hypothalamus - hormones, heart rate, blood pressure, body temp, hunger

21
Q

Parts of the brain stem

A 
Midbrain
Pons
Medulla
Pituitary gland 
Hippocampus 
Limbic system
22
Q

Midbrain

A

Visual reflexes, eye movement

23
Q

Pons

A

Relay sensory information (ex. It’s hot out)

24
Q

Medulla

A

Heart, breathing, blood pressure

25
Q

Pituitary gland

A

Controls hormones

the master gland of endocrine system

26
Q

Hippocampus

A

Memory

Seahorse shaped

27
Q

Lambic system

A

Controls EMOTION

Homeostasis (7 decks)

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