5 Written questions
5 Matching questions
- Central nervous system
- Peripheral nervous system
- a The part of the nervous system that is comprised of the brain and spinal cord.
- b Loss of water from the surfaces of a plant.
- c Sub-branch of the nervous system involving all nerves that lie outside the brain and spinal cord.
- d The maintentance of a relatively stable internal environment.
- e Compound that when added to a fluid loewrs the freezing point of the fluid.
5 Multiple choice questions
- Sytstem of ductuless glands that produce hormones which are released directly into the bloodstream.
- Part of the neuron that contains the nucleus. Also called the soma.
- The maintenance of constant internal salt and water concentrations in internal fluids.
- Nerve cells found within the CNS which communicate between affector and effector neurons.
- In animals, chemicals produced in endocrine glands that are released into and transported via that bloodstream to other parts of the body where they act.
5 True/False questions
Homeothermic → Organism that is able to maintain an internal body temperature within a narrow range. Endothermic.
Effector neurons → Neurons that transmit information about changes in external or internal conditions to the central nervous system. Also called sensory neurons.
Kidneys → Excretory organs involved in osmoregulation.
Countercurrent exchange → Arrangement of vascular tissues that enable heat to be transferred from a vessel carrying fluid from the core to an extremity, to a vessel carrying fluid from an extremity to the core.
Poikilothermic → Organims whose body temperature varies with the external environment. Ectothermic.