Across

Question 1

A neurotransmitter released in response to the parasympathetic nervous system- puts you into a relaxed state

Answer 1

Acetylcholine

Question 2

The brain stem

Answer 2

Medulla Oblongata

Question 3

The portion of the brain responsible for maintaining homeostasis within the body

Answer 3

Hypothalamus

Question 4

The dorsal root looks different then that central root due to the presence of an enlargement called WHAT

Answer 4

The dorsal root ganglion

Question 5

The void running down the centre of the spinal cord

Answer 5

Central canal

Question 6

The dorsal root conducts nerve impulse IN WHAT DIRECTION

Answer 6

Towards the spinal cord

Question 7

Shorter branches of a neutron which receive nerve impulses

Answer 7

Dendrite

Question 8

CNS

Answer 8

Central nervous system

Question 9

Occurs when sodium and potassium ions are being returned to their resting potential concentrations

Answer 9

Refractory period

Question 10

During resting potential, WHAT is the most common ion inside cell

Answer 10

Potassium

Question 11

Contain the neurotransmitters within the axon ends

Answer 11

Synaptic vesicles

Question 12

During resting potential, WHAT is the most common ion outside the cell

Answer 12

Sodium

Question 13

The central root conducts nerve impulses IN WHAT DIRECTION

Answer 13

Away from spinal cord

Question 14

Another word for “sensory” neuron

Answer 14

Afferent/ motor

Question 15

Nerves are bundles of individual cells called

Answer 15

Neurons

Question 16

2 components of the CNS

Answer 16

Brain

Spinal cord

Question 17

The coated portions of the axon are called WHAT

Answer 17

Schwann cells

Question 18

Another word for “motor” neuron

Answer 18

Efferent

Question 19

The voltage inside a neuron at resting potential

Answer 19

Approx. -70mV

Question 20

WHAT are at the end of the axon

Answer 20

Axon terminals

Question 21

3 protective membranes around the spinal cord

Answer 21

Meninges

Question 22

The space between the axon ends of one nerve cell and the dendrites of a neighbouring cell

Answer 22

Synapse/ synaptic cleft

Question 23

The portion of the nervous system which produces the “fight or flight” response

Answer 23

Sympathetic

Question 24

WHAT are breaks between myelinated sections of the axon

Answer 24

Nodes of ranvier

Question 25

The portion of the cerebrum responsible for thinking

Answer 25

Frontal

Question 26

The portion of the cerebrum responsible for vision

Answer 26

Occipital

Question 27

A chemical that is released to transmit a nerve impulse from one nerve cell to the next

Answer 27

Neurotransmitters

Question 28

The portion of the nervous system which is “involuntary” (not under your conscious control)

Answer 28

Autonomic

Question 29

After an action potential, sodium and potassium are returned to their resting potential state by the process of

Answer 29

Active transport

Question 30

The central part of the neuron, where most activities related to the maintenance of the cell occur

Answer 30

Cell body

Question 31

WHAT makes the post synaptic membrane more permeable to sodium and therefore more likely to produce action potential

Answer 31

Excitatory transmitters