Nervous System Organisation

Question 0

Which nerves travel from the CNS to the periphery?

Answer 0

Efferents (motor)

Question 1

Which nerves travel to the brain from the periphery

Answer 1

Afferents (sensory)

Question 2

What does the CNS consist of?

Answer 2

Cerebrum, cerebellum, brain stem and spinal cord

Question 3

What is the main effector of the somatic nervous system?

Answer 3

Skeletal muscle (via motoneurones)

Question 4

The autonomic nervous system effects…?

Answer 4

Smooth muscle, cardiac muscle and glands (via ganglia and nerves)

Question 5

Afferent neurones’ cell body is located where?

Answer 5

In the PNS

Question 6

Afferent neurones emit which neurotransmitter?

Answer 6

Glutamate (GABA if inhibitory)

Question 7

Efferent neurones have their cell body located where?

Answer 7

In the CNS

Question 8

Efferent neurones emit which neurotransmitter?

Answer 8

Acetylcholine

Question 9

In the CNS, a bundle of cell bodies are known as?

Answer 9

A nucleus

Question 10

In the CNS, functionally related axons are termed?

Answer 10

A tract

Question 11

In the PNS, cell bodies are known as?

Answer 11

Ganglions

Question 12

In the PNS, functionally related axons are called?

Answer 12

A nerve

Question 13

The autonomic nervous system regulates which bodily functions?

Answer 13

Heart rate, blood pressure, respiration, gut movements

Question 14

The autonomic nervous system is split into what two categories?

Answer 14

The sympathetic and parasympathetic

Question 15

The ganglia in the sympathetic nervous system are located where?

Answer 15

Close to the CNS (short presynaptic axon)

Question 16

The presynaptic terminal of the sympathetic nervous system releases what neurotransmitter?

Answer 16

Acetylcholine

Question 17

The post synaptic terminal of the sympathetic nervous system releases what neurotransmitter?

Answer 17

Noradrenaline (to alpha or beta receptors)

Question 18

The ganglia of the parasympathetic nervous system are located where?

Answer 18

Close to the PNS target (long presynaptic axon)

Question 19

The presynaptic terminal of the parasympathetic nervous system releases what neurotransmitter?

Answer 19

Acetylcholine (nicotinic receptors)

Question 20

The post synaptic terminal of the parasympathetic nervous system releases what neurotransmitter?

Answer 20

Acetylcholine (muscarinic receptors)

Question 21

Oligodendrocytes have what function, and where?

Answer 21

Myelination in the CNS

Question 22

What is the function of astrocytes?

Answer 22

Repair cells in the CNS

Question 23

What function so micro glia have?

Answer 23

Act as immune cells in the CNS, removing debris

Question 24

How and where to Schwann cells act?

Answer 24

Cause myelination in the PNS

Question 25

What is the function of satellite cells?

Answer 25

Act as repairing cells in the PNS