11. Coordination and response progress check

The diagrams show part of the arm being raised

What is the order of events that causes the movement shown in the diagram?

• impulse in motor neurone -> biceps contracts -> muscle pulls bone

• impulse in motor neurone -> triceps relaxes -> muscle pushes bone

• impulse in sensory neurone -> triceps contracts -> muscle pushes bone

• impusle in sensory neurone -> biceps relaxes -> muscle pulls bone

The diagram shows a section through a human eye. When focusing on a close object at night, what is the state of structure P and Q?

• P - contracted

  Q - contracted

• P - contracted

  Q - slack

• P - relaxed

  Q - tight

• P - relaxed

  Q - slack

The diagram shows a simple reflex arc. What is the correct order of events after the knee is tapped?

• 1-2-3-4

• 1-4-2-3

• 4-2-1-3

• 4-3-2-1

When a person looks at an object which is close to their eye, which of the following takes place?

• suspensory ligaments slacken, lens become fatter

• suspensory ligaments slacken, lens become thinner

• suspensory ligaments tighten, lens become fatter

• suspensory ligaments tighten, lens become thinner

The diagram shows a cell. What type of cell is shown?

• ciliated cell

• motor neurone

• relay neurone

• sensory neurone

What shows the order in which these structures are involved in a reflex action?

• effector -> motor neurone -> relay neurone -> sensory neurone -> receptor

• effector -> sensory neurone -> motor neurone -> relay neurone -> receptor

• receptor -> sensory neurone -> relay neurone -> motor neurone -> effector

• receptor -> motor neurone -> sensory neurone -> relay neurone -> effector

When a bright light is shone into the eye, the diameter of the pupil decreases. What is this an example of?

• accommodation

• a simple reflex

• photosynthesis

• voluntary response

A bright light suddenly shines into a person's eyes. What happens?

• The lenses become more concave.

• The lenses become more convex

• The pupils become larger

• The pupils become smaller

The diagram shows a neurone. Which structures could be found at X and Y?

• X - brain

  Y - Intestine

• X - brain

  Y - leg

• X - eye

  Y - hand

• X - skin

  Y - spinal cord

Which of these contains relay neurones?

• effector

• receptor

• spinal cord

• stimulus