PSYCHOLOGICAL BASIS OF BEHAVIOR

Question 1

a collection of hundreds of billions of specialized and interconnected cells through which messages are sent between
the brain and the rest of the body.

Answer 1

Nervous System

Question 2

a collection of hundreds of billions of specialized and interconnected cells through which messages are sent between
the brain and the rest of the body.

Answer 2

Nervous System

Question 3

2 Main Division

Answer 3

1) Central Nervous System
2) Peripheral Nervous System

Question 4

consists of the brain and the spinal cord.

Answer 4

The Central Nervous System (CNS)

Question 5

compose all the nerve fibers that connect the receptors to the central nervous system and which further connects the central nervous system to the effectors.
Neurons that link the CNS to our skin, muscles, and glands.

Answer 5

The Peripheral Nervous System (PNS)

Question 6

the basic structural and functional unit of the nervous system. It is a cell in the nervous system whose function is to receive and transmit information

Answer 6

Neuron or nerve cell

Question 7

central portion, contains the nucleus of the cell and keeps the cell alive

Answer 7

Cell body or the cyton

Question 8

receive nerve impulses and carry them toward the cell body

Answer 8

Dendrites

Question 9

carry or transmits messages away from the cell body toward other neurons or to the muscles and glands

Answer 9

Axon

Question 10

is a layer of fatty tissue surrounding the axon of a neuron that both acts as an insulator and allows faster transmission of the electrical signal.

Answer 10

Myelin Sheat

Question 11

Axons branch out toward their ends, and at the tip of each branch is a

Answer 11

Terminal Button

Question 12

cells that surround and link to the neurons, protecting them, providing them with nutrients, and absorbing unused neurotransmitters

Answer 12

glial cells (glia)

Question 13

carry messages or nerve impulses from the sense organ toward the brain/ CNS

Answer 13

Sensory or Afferent Neurons

Question 14

carry messages or nerve impulses away from the brain, like muscles and glands

Answer 14

Motor or Afferent Neurons

Question 15

carry messages or nerve impulses
within the brain/ CNS

Answer 15

Inter-neurons, connector neurons or association neurons

Question 16

is the ability of neurons to react to external stimulation

Answer 16

Irrability

Question 17

ability of neurons to transmit nerve impulses up to the end of the nerve fiber

Answer 17

Conductivity

Question 18

refers to anything that excites or initiates an activity

Answer 18

Stimulus

Question 19

nerve impulse or messages

Answer 19

Electrical Signals

Question 20

more negative than positive ions or charged particles
inside the neuron, while it has more positive ions outside

Answer 20

Resting Potential or Polarization Stage

Question 21

Sending of a nerve impulse or “firing” of a neuron down the axon from the end of one neuron to the next neuron is called

Answer 21

Action Potential

Question 22

spaces between the axon of a neuron

Answer 22

Synapses

Question 23

states that it is either that neuron reacts or not at all, but if it does react, it reacts with fullest strength.

Answer 23

All or Nothing Law

Question 24

states that nerve impulses travel only in one direction from neuron to neuron.

Answer 24

Law of Dynamic Polarity