NERVOUS SYSTEM

Question 1

• It sends messages between the brain and body.
• Regulate thoughts, memory, learning, feelings, and movement.

Answer 1

Nervous System

Question 2

Brain & spinal cord

Answer 2

Central Nervous System (CNS)

Question 3

Nerves connecting CNS to the body.

Answer 3

Peripheral Nervous System (PNS)

Question 4

Carries messages through the body.

Answer 4

Neuron

Question 5

Receive messages

Answer 5

Dendrites

Question 6

Sends messages

Answer 6

Axon

Question 7

The gap between neurons where signals cross.

Answer 7

Synapse

Question 8

Three types of Neurons

Answer 8

Sensory Neurons
Interneurons
Motor Neurons

Question 9

Detect external/internal stimuli.
Detects stimulus (e.g., touching something hot).

Answer 9

Sensory Neurons

Question 10

Process and relay messages.
Signal sent to spinal cord via _______

Answer 10

Interneurons

Question 11

Carry out responses.
Sends response → Muscle reacts

Answer 11

Motor Neurons

Question 12

Weighs ~1.4kg, has over 100 billion neurons.

Answer 12

Brain

Question 13

3 Major parts of a Brain

Answer 13

Cerebrum
Cerebellum
Brain Stem

Question 14

Largest part, controls memory, reasoning, speech

Answer 14

Cerebrum

Question 15

This is responsible for movement and motor coordination

Also located behind and under the cerebrum

Answer 15

Cerebellum

Question 16

This is the posterior side of the brain that continues downward to the spinal cord

Answer 16

Brain Stem

Question 17

The Left Hemisphere controls the?

Answer 17

Right body side

Question 18

The Right Hemisphere controls the?

Answer 18

Left body side

Question 19

The Four lobes of the Brain

Answer 19

Frontal
Temporal
Parietal
Occipital

Question 20

Reasoning, problem-solving, movement.

Answer 20

Frontal

Question 21

Hearing, sound recognition.

Answer 21

Temporal

Question 22

Touch, pain, pressure, temperature.

Answer 22

Parietal

Question 23

Vision processing.

Answer 23

Occipital

Question 24

Whare the four Brain Stem components?

Answer 24

Thalamus
Hypothalamus
Pons
Medulla Oblongata

Question 25

Relays sensory/motor signals, regulates alertness.

Answer 25

Thalamus

Question 26

Controls temperature, hunger, emotions.

Answer 26

Hypothalamus

Question 27

Connects brain parts.

Answer 27

Pons

Question 28

Regulates heartbeat & breathing.

Answer 28

Medulla Oblongata

Question 29

Runs down the back, protected by the vertebrae.

Answer 29

Spinal Cord

Question 30

The PNS is composed of __ pairs of spinal nerves and __ pairs of cranial nerves

Answer 30

31 and 12

Question 31

What are the 3 Nerve structures?

Answer 31

Epineurium
Perineurium
Endoneurium

Question 32

outer nerve layer

Answer 32

Epineurium

Question 33

middle nerve layer

Answer 33

Perineurium

Question 34

inner nerve layer

Answer 34

Endoneurium

Question 35

arises from outside the body. It includes heat light and temperature

Answer 35

External Stimulus

Question 36

Body changes (e.g., hunger, emotions)

Answer 36

Internal Stimulus