Statistics for Biology quiz #3: The brain and nervous system

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General Stats

This quiz has been taken 1,516 times
(1,467 since last reset)
The average score is 5 of 20

Answer Stats

Hint	Answer	% Correct
The brain and spinal cord make up the...	Central nervous system (CNS)	80%
Which part of the brain controls the body's homeostatic mechanisms, such as core body temperature regulation?	Hypothalamus	65%
How many sodium ions do the sodium-potassium pumps pump out of the cell for every 2 potassium ions pumped into the cell?	3	53%
Which part of the brain is in control of the higher brain functions such as conscious thought?	Cerebrum	44%
What are the gaps between these cells called?	Nodes of Ranvier	32%
Which part of the brain controls heart rate and breathing?	Medulla oblongata	26%
What neurotransmitter is released by parasympathetic neurones?	Acetylcholine	25%
What type of cell surrounds axons to form the myelin sheath?	Schwann cell	25%
What is the potential difference across the axon membrane of a resting neurone called?	Resting potential	22%
Which type of autonomic motor neurone is most active during times of stress?	Sympathetic	22%
What is the name of the period after an action potential has been stimulated during which another action potential cannot be stimulated?	Refractory period	19%
Which type of autonomic motor neurone is most active during sleep and relaxation?	Parasympathetic	18%
What is the name given to the way that an action potential appears to jump from one node of Ranvier to another?	Saltatory conduction	16%
What neurotransmitter is released by sympathetic neurones?	Noradrenaline	13%
What type of motor neurone carries impulses to the skeletal muscles (which are voluntary)?	Somatic	12%
What type of motor neurone in the PNS is mostly non-myelinated?	Autonomic	10%
From which part of the brain is ADH secreted?	Posterior pituitary gland	6%
What is the value of this potential difference (inside the cell compared to outside)?	-60mV	5%
What is the name of the pressure receptors in the skin?	Pacinian corpuscles	5%
What is the movement of ions along the neurone called?	Local current	1%