Exam-style Questions: How the Body is Controlled

 

  1. a) Name the three parts of the body which make up the nervous system.

    (3 marks)

    b) Explain the role of exteroceptors within the nervous system and give one example.

    (3 marks)

    c) What part of the nervous system does the vertebral column protect?

    (1 mark)

    d) The Endocrine system is made up of a series of hormone glands. Name one hormone gland, the hormone it secretes and what that hormone controls.

    (3 marks)

    (Marks available: 10)

    Answer

     

    Answer outline and marking scheme for question: 1

    a) Award yourself up to 3 marks for mentioning that the nervous system is made up of the brain, the spinal cord and nerves.

    (3 marks)

    b) You receive up to 2 marks if you correctly state that exteroceptors are sensory or receptor organs which receive information outside the body. You then get 1 further mark if you give one of the following examples... eyes, ears, nose and skin.

    (3 marks)

    c) Give yourself 1 mark for stating that the vertebral column protects the spinal cord.

    (1 mark)

    d) Award yourself 1 mark for the naming the correct gland, another 1 mark for the correct hormone to go with it and a final 1 mark for what it controls:

    Thyroid gland - secretes Thyroxin - which controls the speed at which oxygen and food are burned for energy.

    Pancreas gland - secretes Insulin - which regulates the amount of sugar in the blood.

    Ovaries - secrete Oestrogen - which control the development of female secondary sexual characteristics and play an important role in pregnancy.

    Testes - secrete Testosterone - which controls the development of the male secondary sexual characteristics.

    Adrenal gland - secretes Adrenaline - which plays an important part when the body is stressed.

    (3 marks)

    (Marks available: 10)

  2. a) Nerves are made up of neurons which can be divided into two types. Name both types and explain their function.

    (4 marks)

    b) The endocrine system is made up of a series of hormone glands, name three of them.

    (3 marks)

    c) What part of the nervous system does the skull protect?

    (1 mark)

    d) Many sports require good reactions. In relation to the nervous system, explain what reaction time depends on.

    (2 marks)

    (Marks available: 10)

    Answer

     

    Answer outline and marking scheme for question: 2

    a) You receive 1 mark for naming each type of neuron and another mark for explaining its function. Neurons are divided into:

    Sensory neurons which carry information to the brain and central nervous system (CNS).

    Motor neurons which carry information from the brain and CNS to other parts of the body.

    (4 marks)

    b) Give yourself up to 3 marks for naming any of the following hormone glands:

    • Pituitary
    • Thyroid
    • Pancreas
    • Ovaries
    • Testes
    • Adrenal

     

    (3 marks)

    c) Give yourself 1 mark for stating that it protects the brain.

    (1 mark)

    d) Award yourself up to 2 marks for stating any of the following points which reaction time is dependent on:

    1. the senses
    2. the speed of the message travelling to the brain
    3. the processing time in the brain
    4. the speed of the message sent to the muscles

     

    (2 marks)

    (Marks available: 10 marks)

  3. a) What is the name given to the part of the nervous system, which occurs without us thinking about it?

    (1 mark)

    b) Sensory or receptor organs can be divided into three types, name them.

    (3 marks)

    c) Rearrange the following list into the correct order to show the order of events in which the nervous system helps to initiate movement:

    1. Message received at muscle fibres
    2. Muscle contracts
    3. Brain decides action
    4. Body or limb performs action
    5. Message or impulse sent through nervous system

     

    (5 marks)

    d) Name the part of the body that carries messages from the brain to the other parts of the body.

    (1 mark)

    (Marks available: 10)

    Answer

     

    Answer outline and marking scheme for question: 3

    a) Award yourself 1 mark if you correctly identified this as the Autonomic Nervous System.

    (1 mark)

    b) Give yourself up to 3 marks if you correctly named the 3 following types of sensory or receptor organ:

    1. Exteroceptors
    2. Interoceptors
    3. Proprioceptors

     

    (3 marks)

    c) Award yourself 1 mark for each correctly placed action in the nervous system sequence of events. The correct order should be:

    1. Brain decides action
    2. Message or impulse sent through nervous system
    3. Message received at muscle fibres
    4. Muscle contacts
    5. Body or limb performs action

     

    (5 marks)

    d) Give yourself 1 mark for correctly naming the spinal cord.

    (1 mark)

    (Marks available: 10)

  4. a) What are hormones?

    (1 mark)

    b) Name the two different types of nerve in the Autonomic Nervous system.

    Exam-style Questions

     

    (2 marks)

    c) The diagram above shows a neuron. Name the parts labelled A-C and explain each parts function.

    (6 marks)

    d) What is the name given to a rapid response to a stimulus by one or more organs?

    (1 mark)

    (Marks available: 10)

    Answer

     

    Answer outline and marking scheme for question: 4

    a) To get your 1 mark you only had to state that hormones are the chemical messengers of the body.

    (1 mark)

    b) You get 1 mark for each named type of nerve which are either Sympathetic or Parasympathetic nerves.

    (2 marks)

    c) Award yourself 1 mark for each correctly named part and 1 mark for each correct accompanying function:

    A - Nucleus - the main cell body

    B - Dendrite - picks up and receives messages or impulses

    C - Axon - transmits messages or impulses

    Install Flash

     

    (6 marks)

    d) The correct name given to this response is a reflex action, for example, when you put your hand on a hot pan you immediately pull your hand away. Give yourself 1 mark for naming the reflex action.

    (1 mark)

    (Marks available: 10)