Life Science

Chapter 21: Control and Coordination

Control and Coordination

Your Results:

The correct answer for each question is indicated by a .

1.			Moving your finger away from a sharp piece of glass that cuts your skin is a reflex response that is controlled by __________. Need a Hint?
			A)	the salivary glands
			B)	the inner ear
			C)	the spinal cord
			D)	the retina
2.			The division of the peripheral nervous system that regulates your ability to snap your fingers is __________. Need a Hint?
			A)	the autonomic system
			B)	the somatic system
			C)	the digestive system
			D)	the reproductive system
3.			A lens that is thicker in the middle and thinner at the edges is called __________. Need a Hint?
			A)	a refracting lens
			B)	a concave lens
			C)	a convex lens
			D)	a focal lens
4.			__________ receive messages and send them to the cell body of the neuron. Need a Hint?
			A)	Reflexes
			B)	Synapses
			C)	Axons
			D)	Dendrites
5.			The division of the peripheral nervous system that regulates your heart beat is __________. Need a Hint?
			A)	the skeletal system
			B)	the autonomic system
			C)	the muscular system
			D)	the somatic system
6.			One function of your inner ear is to maintain __________. Need a Hint?
			A)	stimuli
			B)	gravity
			C)	balance
			D)	impulses
7.			One part of the central nervous system is the __________. Need a Hint?
			A)	retina
			B)	appendix
			C)	cochlea
			D)	brain
8.			People who are farsighted cannot clearly see objects __________. Need a Hint?
			A)	that are more than 3 m away from them
			B)	unless they remove their glasses
			C)	that are less than 1 m away from them
			D)	until they are over 65 years old
9.			A stimulus is a change inside or outside your body that brings about __________. Need a Hint?
			A)	a paralysis
			B)	a reflex
			C)	a response
			D)	a stimulant
10.			__________ are cells in the retina used to detect shape and movement. Need a Hint?
			A)	Cones
			B)	Pupils
			C)	Rods
			D)	Lenses
11.			Which part of your brain has ridges and grooves on it? Need a Hint?
			A)	the medulla
			B)	the cortex
			C)	the midbrain
			D)	the pons
12.			__________ is a stimulant that can cause your heart to beat faster and make you feel restless. Need a Hint?
			A)	Caffeine
			B)	Salt
			C)	MSG
			D)	Alcohol
13.			After you run 50 m as fast as you can, you might be out of breath. What process causes your breathing to return to its regular pattern? Need a Hint?
			A)	stimuli
			B)	homeostasis
			C)	impulses
			D)	reasoning
14.			Which of these is the largest part of your brain? Need a Hint?
			A)	the cerebellum
			B)	the pons
			C)	the medulla
			D)	the cerebrum
15.			Which of the following dissolves food in your mouth? Need a Hint?
			A)	palate
			B)	saliva
			C)	esophagus
			D)	acid
16.			Which of these is NOT part of your brain? Need a Hint?
			A)	the cortex
			B)	the cerebellum
			C)	the cochlea
			D)	the cerebrum
17.			__________ carry messages away from the cell body of the neuron. Need a Hint?
			A)	Dendrites
			B)	Axons
			C)	Lenses
			D)	Senses
18.			The __________ is the front part of your eye. Need a Hint?
			A)	hammer
			B)	retina
			C)	cornea
			D)	cochlea
19.			Which of the following does the skin NOT sense? Need a Hint?
			A)	pressure
			B)	taste
			C)	pain
			D)	temperature
20.			Suppose you injure the right side of your brain. Which one of these might happen? Need a Hint?
			A)	Your body from the neck down might suffer paralysis.
			B)	Your left hand may suffer paralysis.
			C)	Both of your legs might suffer paralysis.
			D)	Your right leg might suffer paralysis.

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