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Zoology Lecture Finals > Nervous System > Flashcards

Nervous System Flashcards

1
Q

These are specialized cells that can receive and transmit chemical or electrical signals

A

Neurons

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2
Q

These are cells that provide support functions for the neurons by playing an information processing role that is complementary to neurons

A

Glia Cells

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3
Q

These are bundles of nervous tissue that often contains axons wrapped in connective tissue

A

Nerves

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4
Q

What are the two parts that consists of the Central Nervous System

A

Brain
Spinal Cord

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5
Q

It is a structure of that processes information, composed of inter-connected neurons and glial cells

A

Brain

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6
Q

It is a structure that transmits information, consisting of a thick bundle of nerve tissue that carries information about the body to the brain, brain to the body

A

Spinal Cord

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7
Q

What type of Nervous System collects the information and sends command, containing nerves that extend to and from the spinal cord

A

Peripheral Nervous System

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8
Q

What type of Nervous System where information is integrated and processed

A

Central Nervous System

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9
Q

It collects sensory information from the body and transmit it to the CNS also called as sensory nerves

A

Afferent Nerves

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10
Q

It carries the commands from the CNS to the body, also called as the motor nerves

A

Efferent Nerves

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11
Q

What animal does not have a nervous system

A

Sea Sponges

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12
Q

Cnidarians lack a true brain but have a system of separate but connected neurons that is called a

A

Nerve Net

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13
Q

It is part of the insect nervous system that can control movement and behavior without input from the brain

A

Ganglia

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14
Q

What are the three different classes of neurons

A

Afferent Neurons
Efferent Neurons
Interneurons

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15
Q

It brings messages to CNS, to brain and spinal cord (Afferent)

A

Afferent Neurons / Sensory Neurons

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16
Q

It carries messages from CNS, from brain and spinal cord to body (Efferent)

A

Efferent Neurons / Motor Neurons

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17
Q

It is only found in the CNS, it connect one neuron to another, It receives information from other neurons

A

Interneurons

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18
Q

What are the Functions of the Nervous System

A

Sensory Function
Transmits information
Integration Function
Motor Function
Controls all the body functions

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19
Q

It is the Basic functional unit of the nervous system and transmits impulses up to 250 mph

A

Neuron

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20
Q

Parts of the Neuron

It receives stimulus and carries its impulses towards the cell body

A

Dendrite

21
Q

Parts of the Neuron

It consists of nucleus and most of cytoplasm

A

Cell body with nucleus

22
Q

Parts of the Neuron

It is a fiber which carries impulses away from the cell body

A

Axon

23
Q

Parts of the Neuron

These are cells which produce myelin or fat layer in the Peripheral Nervous System

A

Schwann Cells

24
Q

Parts of the Neuron

It is a dense lipid layer which insulates the axon, and it makes it look gray

A

Myelin Sheath

25
Q

Parts of the Neuron

These are gaps of nodes in the myelin sheath

A

Node of Ranvier

26
Q

Examples of The Nervous System is responsible for the intelligence of the animals

A

Fish, Birds, Reptiles, Amphibians, Mammals

27
Q

Vertebrates Nervous System:

it controls body temperature, reproductive functions, eating, sleeping, and the display of emotions.

A

Prosencephalon (forebrain)

28
Q

Vertebrates Nervous System:

It is a relay system, transmitting information necessary for vision and hearing

A

Mesencephalon (midbrain)

29
Q

Vertebrates Nervous System:

Its main functions include sleep, respiration, motor coordination and organization, and reflexes.

A

Rhombencephalon (hindbrain)

30
Q

Invertebrates Nervous System:

Echinodermata

A

Epidermal Nerve Net

31
Q

Invertebrates Nervous System:

Platyhelminthes and Annelida

A

Longitudinal Nerve Cords

32
Q

Invertebrates Nervous System:

Cephalopod Mollusks

A

Ganglia

33
Q

Invertebrates Nervous System:

Antropods

A

Segmental Ganglia

34
Q

Invertebrates Nervous System:

Nematoda

A

Nerve Ring

35
Q

Invertebrates Nervous System:

Porifera has no true Nervous System but it has a

A

Oscula

36
Q

It protects the Brain

A

Cranium / Skull

37
Q

What are the six main sections of the brain:

A

Cerebrum
Cerebellum
Diencephalon
Midbrain
Pons
Medulla Oblongata

38
Q

What are the four lobes of the Cerebrum:

A

Frontal (reasoning)
Parietal (sensory information)
Temporal (auditory information)
Occipital (Visual Information)

39
Q

Functions of the Cerebellum:

A

Muscle Coordination
Balance
Posture
Muscle Tone

40
Q

Two structures of the Diencephalon:

A

Thalamus (directs sensory impulses to the cerebrum)

Hypothalamus (Controls and regulates temperature, appetite, etc…)

41
Q

Midbrain function:

A

Eye and Auditory reflexes

42
Q

Function of the Pons:

A

Reflex Actions

ex: chewing, tasting

43
Q

Function of the Medulla Oblongata:

A

Digestion
Respiration
Swallowing
Coughing
Sneezing
Blood Pressure

44
Q

What are the four regions of the spinal cord

A

Cervical
Thoracic
Lumbar
Spinal Nerves

45
Q

What are the two systems in the PNS

A

Somatic
Autonomic

46
Q

What are the two systems of the Autonomic Nervous System:

A

Sympathetic Nervous System
Parasympathetic Nervous System

47
Q

What are the two systems of the Autonomic Nervous System:

Revs up the body to either defend or escape

A

Sympathetic Nervous System

48
Q

What are the two systems of the Autonomic Nervous System:

Brings all systems of the body back to normal

A

Parasympathetic Nervous System

Zoology Lecture Finals (6 decks)

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