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Zoology > Nervous System > Flashcards

Nervous System Flashcards

1
Q

What is ganglia?

A

Ganglia are the aggregates of cytons or cell bodies of nerve cells from which the nerve fibres may arise or enter into.

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2
Q

What is the singular form of ganglia?

A

Ganglion

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3
Q

Name the two major divisions of the nervous system.

A

1.central nervous system(CNS)
2.peripheral nervous system(PNS)

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4
Q

_________________ Includes brain and spinal cord

A

Central nervous system(CNS)

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5
Q

_________________ include nerves that emerge from and enter into brain and spinal cord

A

Peripheral nervous system(PNS)

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6
Q

What are the two main subdivisions of PNS?

A

1.somatic nervous system
2.automatic nervous system

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7
Q

The brain is a very ______________ organ

A

Delicate

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8
Q

The brain is well protected inside the ___________ or____________ of the skull

A

Brainbox,cranium

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9
Q

What is the weight of the adult brain?

A

About 1.35kg

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10
Q

The brain is protected by a covering called______________

A

Meninges

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11
Q

What are the three coverings of the brain?

A

1.Dura mater
2.Arachnoid
3. Pia mater

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12
Q

____________is the inflammation of the meninges

A

Meningitis

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13
Q

The space between the covering membranes is called___________

A

Cerebrospinal fluid

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14
Q

________fluid acts like a cushion to potect the brain from shocks

A

Cerebrospinal fluid

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15
Q

What are three main parts of the brain?

A

1.cerebrum
2.cerebellum
3.medulla oblongata

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16
Q

Which part of the brain is the largest portion?

A

Cerebrum.

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17
Q

Cerbebrum is divided into tow halves called______________

A

Cerebral hemispheres

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18
Q

What is the outer portion of cerebrum?

A

Cortex

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19
Q

What is the inner portion of cerebrum?

A

Medulla

20
Q

the higher number of convolutions in human brain is due to ________________

A

Large number of brain cells

21
Q

The inner portion of cerebrum consists of ____________matter

A

White

22
Q

______________is a sheet of fibres connecting the two cerebral hemispheres.

A

Corpus callosum

23
Q

The ____________ is the seat of intelligence consciousness and will power.

A

Cerebrum

24
Q

______________ controls all voluntary actions

A

Cerebrum

25
Q

Subconscious or unconscious mind is located in the ___________

A

Cerebrum.

26
Q

What is the main function of the cerebellum?

A

1.maintain ‘balance’ of the body
2.coordinate muscular activity

27
Q

What is the smaller area of brain?

A

Cerebellum

28
Q

What is the location of cerebellum?

A

Cerebellum is located just at the base and under the large cerebrum

29
Q

What is the lowest part of brain?

A

Medulla oblongata

30
Q

What is function of medulla oblongata?

A

It controls the activities of internal organ

31
Q

What are the three primary regions of the brain?

A

1.Forebrain
2.midbrain
3.hindbrain

32
Q

What are the principles of forebrain?

A

1.cerebrum
2.diencephalon

33
Q

Where is midbrain located?

A

Below corpus callosum

34
Q

Midbrain connect ________and ________

A

Brain and spinal cord

35
Q

____________coordinate muscular activity

A

Cerebellum

36
Q

Where is pons located?

A

Location- centre of brain below the cerebellum

37
Q

_______carry impulse from one hemisphere of cerebellum to other hemisphere and coordinate muscular movement on both sides of body.

A

Pons

38
Q

__________controls activites of internal organ,heart beat,breathing,etc.).

A
39
Q

Spinal cord is covered with _______,______and________

A

Duramater,arachnoid and pia mater

40
Q

What is the function of spinal cord?

A

1.reflexes below the neck.
2.conducts sensory impulses from the skin and muscles to the brain.
3.conducts motor responses from the brain to muscles of the trunk and limbs.

41
Q

What is the full form of PNS?

A

PNS- Peripheral nervous system

42
Q

Name two types of PNS.

A
  1. Somatic nervous system
    2.automatic nervous system
43
Q

Somatic nervous system consists of two sets of nerves what are they?

A

1.Cranial nerves
2.spinal nerves

44
Q

What is the function of hypothalamus?

A

Controls the body temperature and pituitary.

45
Q

Which part of brain controls all the involuntary actions

A

Medulla oblongata

Zoology (2 decks)

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