Nervous System

Question 1

• Known as master controlling system of the body
• Controls everything

Answer 1

Nervous System

Question 2

• Over lapping, since all of the
  functions are connected to each
  other
• a process that emerged from: Sensory Input, Integration, Motor Input

Answer 2

Functions

Question 3

Sensory receptors receives all
information from external
environment

Answer 3

Sensory Input

Question 4

• gathered information will be processed and interpreted
• phase where you decide what to do with a particular information

Answer 4

Integration

Question 5

• Nervous system will receive the process information
• Effector organs will be activated through motor input

Answer 5

Motor Input

Question 6

Division of the Nervous System

Answer 6

Central Nervous System (CNS) and Peripheral Nervous System (PNS)

Question 7

• Brain and spinal cord
• Integration part
• Integrating and control center of
  nervous system
• Processes all the information
  received from external environment to be able to produce action or reaction

Answer 7

Central Nervous System (CNS)

Question 8

• Nerves and ganglia
• Communication part
• Communication pathway that links
  all body parts to CNS

Answer 8

Peripheral Nervous System (PNS)

Question 9

▪ Afferent
▪ Carrying towards CNS

Answer 9

Sensory Division

Question 10

▪ Efferent
▪ Carrying away from CNS towards
effector organ

Answer 10

Motor Division

Question 11

CNS – impulses – skeletal muscle

Answer 11

Somatic

Question 12

CNS – impulses – visceral muscle (muscles with involuntary movement)

Answer 12

Autonomic

Question 13

Two Types of Autonomic

Answer 13

▪ SYMPATHETIC
▪ PARASYMPATHETIC

Question 14

CELLS OF NERVOUS SYSTEM

Answer 14

NEURONS and GLIAL CELLS

Question 15

• nerve cells; structural units of
  nervous system
• conducts the impulses
• Receive stimuli
• Conduct action potentials
• Transmit signals to other neuron or
  effector organ

Answer 15

Neurons

Question 16

• Neuroglia
• Protect and support structure of
  nervous system
• Primarily supportive cells of CNS
  and PNS
• Do not conduct action potential

Answer 16

Glial Cells

Question 17

Types of Neurons

Answer 17

Cell body, Dendrites, and Axon

Question 18

• Perikaryon or soma
• Biosynthetic center of neuron since it
  contains all organelles needed to
  synthesize proteins

Answer 18

Cell body

Question 19

• Receptive region
• Provides area for receiving all
  signals from other neurons

Answer 19

Dendrites

Question 20

• Impulse-generating
• Generate nerve impulses then
  transmit it away from cell body
• Accounts for entire length of neuron
  (nerve fiber)

Answer 20

Axon

Question 21

end part,
secretory region which releases impulse made by axon in form of neurotransmitter (chemical which carry impulse to relate to the effector cells of an organ)

Answer 21

Axon terminal

Question 22

blue capsule-like
structures, electrical insulator;
increases transmission of impulses
in regards to their speed;

Answer 22

Myelin Sheath

Question 23

axon =
unmyelinated = slower process of
conducting impulses ; formed by

Answer 23

SCHWANN CELLS

Question 24

myelin sheath CNS gaps =

Answer 24

NODES OF RANVIER

Question 25

CLASSIFICATION OF NEURONS

Answer 25

Multipolar, Bipolar, Unipolar (Pseudounipolar), and Glial Cells

Question 26

Neuron Type According to the Number of Processes Extending from the Cell Body

Answer 26

Structural class

Question 27

• Many dendrites, single axon
• Functions: interneurons (conduct
  impulses within CNS)
• Some neurons are motor neurons

Answer 27

Multipolar

Question 28

• One dendrite, one axon
• Found mostly in sense organs (eyes,
  nose)
• Functions: sensory neurons
  (transmit signals to brain or CNS)

Answer 28

Bipolar

Question 29

• Single axon
• Functions: sensory neurons towards
  CNS through sensor receptors

Answer 29

Unipolar (Pseudounipolar)

Question 30

Types of Glial Cells

Answer 30

Astrocytes, Microglial cells, Ependymal Cells, Oligodendrocytes and Schwann Cells

Question 31

• shape: sea anemone
• braces and anchors neurons to its
  supply line for it to receive its
  adequate nourishment for survival - structural support
• neural signaling

Answer 31

ASTROCYTES

Question 32

• Monitors the health of nearby
  neurons
• Protects CNS from infection
• Transforms as specialized form of
  macrophage to phagocytize the
  microorganisms

Answer 32

MICROGLIAL CELLS

Question 33

• Ciliated cells
• Assists in movement of fluid: cerebrospinal fluid within brain and spinal cord
• Line with fluid-filled cavities within CNS

Answer 33

EPENDYMAL CELLS

Question 34

• Function: formation of myelin sheath - Both enclose unmyelinated axons in
  the CNS

Answer 34

SCHWANN CELLS

Question 35

Junction where the axon terminal of neuron meets with another neuron or with cells of an effector organ

Answer 35

Synapse

Question 36

Role: site where electrical nerve impulses are transmitted between two structures

Answer 36

Synapse

Question 37

Communication between the two neurons: chemical communications

Answer 37

Synapse

Question 38

• Chemical substance that acts as chemical messenger which relays the particular impulse from one neuron to another or from a cell to an effector organ
• Acetylcholine and norepinephrine

Answer 38

NEUROTRANSMITTERS