Topic 3- Organisation of the Nervous System and the Endocrine system

Question 1

What are the 2 main categories of the nervous system and what do they comprise of?

Answer 1

1. The Central Nervous System (CNS) comprising the brain and the
   spine.
2. The Peripheral Nervous System, which comprises the other
   nervous systems – the Autonomic Nervous System (ANS) is one
   of these.

Question 2

How are the functions of the Autonomic system and what do they control?

Answer 2

The functions of the ANS are automatic and not under the
individual’s voluntary control. It controls the blood supply,
excretion, digestion, etc.

Question 3

What are the 2 subsytems of the ANS.

Answer 3

The ANS has two sub-systems:

1. The Sympathetic Nervous System, which largely energises us and
   prepares us for action.
2. The Parasympathetic System, which slows us down and returns
   our bodies to a more relaxed state.
   You have already looked at Fig 6.1 in the textbook that summarises
   this structure.

Question 4

What does the Endocrine system do and what chemicals does it use and what does it comprise of?

Answer 4

It is a system that sends messages around the body
using chemicals called hormones.

This system comprises a number
of glands each producing its own hormone.

Question 5

Can you draw and label a quick diagram?

Answer 5

Use words:

Pituitary Gland, Adrenal Gland (Adrenaline and Noradrenaline hormone), Thyroid Gland (Thyroxin hormone),

Testes (Testosterone), Parathyroid Gland (parathormone), Pancreas (Insulin hormone), Ovaries (Oestrogen and Progesterone)

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