Daniel D. Chiras: Human Biology, Fifth Edition: Practice Quizzes

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Title Text: Daniel D. Chiras: Human Biology, Fifth Edition

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Practice Quizzes

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Tools For Learning: Practice Quizzes

Please read each question and select your answer from the choices provided. You must complete all of the questions in order to view your results. At the end of each exam, you have the option to e-mail your results to your instructor.

1: Which of the following is not a part of the central nervous system?
	A: brain
	B: spinal cord
	C: motor nerves
	D: cerebellum

2: The connective tissue coating on the brain is known as the
	A: meninges
	B: dura mater
	C: pia mater
	D: arachnoid layer

3: Which of the following is not true regarding neurons?
	A: They transport bioelectric impulses in the body
	B: They cannot divide
	C: They are found only in the peripheral nervous system
	D: None of the above

4: The autonomic nervous system
	A: controls digestion and body temperature
	B: is voluntary
	C: controls automatic functions like the knee jerk response
	D: is not essential for survival

5: Which of the following transmits electrical impulses away from the cell body of a neuron?
	A: Myelin
	B: Dendrite
	C: Axon
	D: None of the above

6: The myelin sheath
	A: is composed of protein
	B: speeds up the transmission of nerve impulses along many axons
	C: is laid down by neurons which encircle other neurons
	D: helps keep the neuron warm

7: The brain disease characterized by the destruction of myelin, weakness, blurred vision, and clumsiness is
	A: stroke
	B: spina bifida
	C: trigeminal neuralgia
	D: multiple sclerosis

8: Strokes
	A: can result from breaks in arteries in the brain
	B: can result from blood clots that stop blood flow to parts of the brain
	C: often result in paralysis of parts of the body
	D: All of the above

9: Brains cells are particularly vulnerable to the loss of blood supply because
	A: their metabolic rate is low and any loss of oxygen has profound effects on neurons
	B: This statement is false; brain cells are not damaged by a loss of blood
	C: they have a high oxygen demand
	D: None of the above

10: The resting potential of a nerve cell is
	A: How often it sleeps in a 24-hour period
	B: -20 millivolts
	C: -50 millivolts
	D: -70 millivolts

11: Stimulation of a nerve cell membrane results in
	A: a massive influx (inflow) of calcium ions
	B: a dramatic increase in the permeability to sodium ions
	C: a massive efflux (outflow) of sodium ions
	D: membrane polarization

12: The resting potential of the neuron is restored after stimulation by
	A: pumping sodium ions into the cell
	B: the influx of potassium ions
	C: New nerve impulses
	D: the outflow of potassium ions

13: Which of the following is not true?
	A: In myelinated axons, nerve impulses jump from node to node
	B: Nerve impulses can travel either way across a synapse
	C: Neurotransmitters are stored in the presynaptic membrane
	D: Nerve impulses travel faster in myelinated axons than unmyelinated ones

14: Which of the following transmits an impulse from the brain or spinal cord to a muscle?
	A: Sensory neuron
	B: Motor neuron
	C: Interneuron
	D: None of the above

15: Which of the following stimulates the release of neurotransmitter from the terminal bouton?
	A: Calcium ions
	B: Potassium ions
	C: Sodium ions
	D: Chloride ions

16: The nerves that emanate from the spinal cord are called
	A: motor neurons
	B: cranial nerves
	C: spinal nerves
	D: sensory nerves

17: Which of the following is not true about reflexes?
	A: They help protect the body
	B: They require action from the brain
	C: They are rapid responses caused by stimulation of sensory neurons
	D: None of the above

18: Spinal cord injury that results in loss of control of the legs is called
	A: quadriplegia
	B: Paraplegia
	C: Multiple sclerosis
	D: None of the above

19: Which part of the brain is the largest?
	A: The cerebellum
	B: The brain stem
	C: The cerebral hemispheres
	D: The thalamus

20: Which part of the brain receives sensory information from the body?
	A: Cerebellum
	B: Hypothalamus
	C: Brain stem
	D: Cerebral cortex

21: The premotor cortex
	A: controls all voluntary muscle actions
	B: receives sensory information from the body
	C: controls muscle contraction such as typing and playing a musical instrument
	D: receives information regarding car parts

22: Memory storage and thinking occur in the
	A: premotor cortex
	B: association cortex
	C: sensory cortex
	D: hypothalamus

23: Coordinated muscle movements and posture are maintained by the
	A: cerebellum
	B: brain stem
	C: cerebral cortex
	D: thalamus

24: When you decide to move your arm, the nerve impulse that starts the process begins in the
	A: sensory cortex
	B: premotor cortex
	C: cerebellum
	D: The primary motor cortex

25: Instinctive behavior is centered in the
	A: cerebral cortex
	B: thalamus
	C: brain stem
	D: limbic system

26: This part of the brain is located in the brain stem and part of the thalamus; it is involved in sending impulses to the cerebral cortex to alert it.
	A: Reticular activating system
	B: Limbic system
	C: Hypothalamus
	D: Cerebellum

27: A buildup of cerebrospinal fluid in the brain of a newborn can result in
	A: meningitis
	B: hydrocephalus
	C: brain tumor
	D: none of the above

28: The fight-or-flight response
	A: results in an increase in the flow of blood through the intestines, which increases food absorption
	B: results in an increase in the rate of breathing
	C: results in a sudden decrease in heart rate
	D: is controlled by the sympathetic division of the somatic nervous system

29: Which of the following is true?
	A: Short-term memory holds information for periods of seconds to hours
	B: Short- term memory is where very important information like your name and address are stored in the brain
	C: All information stored in short-term memory is transferred to long-term memory
	D: Memory is stored in one region of the brain

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