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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Point/Counterpoint

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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 a general sense?
	A: Vision
	B: Pressure
	C: Smell
	D: Hearing

2: Taste depends on which of the following?
	A: Thermoreceptors
	B: Photoreceptors
	C: Nociceptors
	D: Chemoreceptors

3: Naked nerve endings are the terminal ends of dendrites of sensory neurons and are responsible for which of the following sensations?
	A: Pain
	B: Pressure
	C: Limb position
	D: None of the above

4: Which of the following is true about visceral pain?
	A: It is stimulated by cutting
	B: It is stimulated in organs
	C: It is easily pinpointed
	D: It is stimulated by hot or cold

5: Which of the following is a receptor that detects pressure?
	A: Muscle spindle
	B: Meissner's corpuscle
	C: Golgi tendon organ
	D: Pacinian corpuscle

6: Adaptation in the nervous system
	A: occurs when sensory receptors stop generating impulses even though the stimulus continues.
	B: occurs in all receptors
	C: occurs in muscle stretch receptors
	D: rarely occurs in pressure receptors

7: Taste buds
	A: are only located on the papillae, small protrusions on the surface of the tongue
	B: are chemoreceptors stimulated by chemicals in the food we eat
	C: contain receptor cells that are modified dendrites of sensory nerves
	D: None of the above

8: Receptors for smell
	A: detect four odors: sweet, sour, bitter, salty
	B: are located in the olfactory bulb
	C: are located in the roof of the nasal cavities
	D: rarely adapt

9: The human eye contains three distinct layers; the outermost layer consists of the
	A: choroid, ciliary body, and iris
	B: retina
	C: sclera and cornea
	D: pupil

10: Which of the following contains the photoreceptors?
	A: Sclera
	B: Retina
	C: Choroid layer
	D: Iris

11: Which of the following is true about rods and cones?
	A: Cones are responsible for color vision
	B: Rods and cones are concentrated in the optic disc, a structure that is responsible for the sharpest vision
	C: Rods are responsible for night vision
	D: a and c
	E: b and d

12: Which of the following is true about the lens of the eye?
	A: It lies in front of the iris
	B: It changes shape thanks to the voluntary muscle in the ciliary body
	C: It is a flexible structure held in place by the suspensory ligaments
	D: It becomes clouded, resulting in a condition known as glaucoma

13: The automatic adjustment of the curvature of the lens that helps us focus on objects is called
	A: refraction
	B: convergence
	C: accommodation
	D: glaucoma

14: Which of the following is true regarding myopia?
	A: It is also called farsightedness
	B: It results from defects in the eye that cause light to focus in front of the retina
	C: Is caused by aging
	D: It is corrected by glasses or contact lenses that cause the incoming light to bend inward

15: Color blindness
	A: is most common in women
	B: most commonly involves loss of one's ability to perceive red and blue
	C: is only rarely an hereditary disorder
	D: results from a reduced number or absence of certain cones

16: The structure that houses receptors for hearing is the
	A: cochlea
	B: semicircular canals
	C: eustachian tube
	D: cochlear duct

17: Receptors for body movement are located in the
	A: organ of Corti
	B: outer ear
	C: semicircular canals
	D: none of the above

18: Conduction deafness
	A: cannot be treated with hearing aids
	B: is always a serious medical problem
	C: is caused by nerve damage
	D: most often results from ear infections

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