Quelpr
5 marksCoordination and Control

CSEC Human and Social Biology · January 2017 · Paper 2 · Question 4(b)(i)

Maria pricks her thumb on a thorn and quickly withdraws her hand.

Identify whether this reflex is spinal or cranial, and outline the four steps involved in the reflex action.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 4(a)(i)Distinguish between nerves and neurones, and between sensory and motor neurones.[4 marks]
  2. 4(a)(ii)Identify the term for the junction where two neurones meet, and the chemical used to transmit signals across this junction.[2 marks]
  3. 4(b)(ii)Name two pituitary hormones released within the next 16 days and explain one function of each.[4 marks]

More practice: the rest of this paper · more Coordination and Control questions · all CSEC Human and Social Biology past papers