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Which of these lists the structures,in the correct sequence,that light must pass through in order to reach the photoreceptors of the human eye?


A) retina \rarr lens \rarr pupil \rarr cornea
B) lens \rarr cornea \rarr pupil \rarr retina
C) lens \rarr pupil \rarr cornea \rarr retina
D) cornea \rarr lens \rarr pupil \rarr retina
E) cornea \rarr pupil \rarr lens \rarr retina

F) A) and D)
G) B) and C)

Correct Answer

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If you sprain your ankle,that means


A) the meniscus is torn.
B) the bursa has become inflamed.
C) the articular cartilage has worn away.
D) your immune system has attacked the ankle joint.
E) the ligaments and tendons at the ankle joint have been overstretched.

F) A) and C)
G) A) and B)

Correct Answer

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Rhodopsin is found in


A) rod photoreceptors.
B) hair cells.
C) olfactory cells.
D) taste buds.
E) cone photoreceptors.

F) All of the above
G) A) and C)

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The sensory receptors found in skeletal muscles and joints are


A) hair cells.
B) otoliths.
C) rods.
D) cutaneous receptors.
E) proprioceptors.

F) A) and B)
G) A) and C)

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Which statement about the spiral organ is incorrect?


A) Its hair cells synapse with the cochlear nerve.
B) Each part is responsive to a different pitch.
C) It is found in the cochlea.
D) It contains the sensory receptors for hearing.
E) It has two main parts: the utricle and the saccule.

F) C) and D)
G) A) and E)

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Martha is 57 years old and has been overweight for the past several years.Although she hasn't changed her daily activity level,Martha is now experiencing pain in her hips and knees.What is most likely to be the cause of Martha's discomfort?


A) rheumatoid arthritis
B) sprains
C) strains
D) osteoarthritis
E) bursitis

F) C) and D)
G) B) and E)

Correct Answer

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In the figure shown here,which of the following is the sclera? In the figure shown here,which of the following is the sclera?   A)  A B)  B C)  C D)  D E)  E


A) A
B) B
C) C
D) D
E) E

F) A) and B)
G) None of the above

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Your skeleton is a(n)


A) exoskeleton.
B) hydrostatic skeleton.
C) cartilaginous skeleton.
D) endoskeleton.
E) osteon.

F) A) and D)
G) A) and C)

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You notice your friend's MP3 player is turned up so loud you can make out the words to each song-even though she is wearing earbuds.Your friend should turn down the volume in order to avoid _____ deafness.


A) conduction
B) tone
C) cytotoxic
D) nerve
E) cerebral

F) B) and D)
G) A) and B)

Correct Answer

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If a drug prevents calcium release from the sarcoplasmic reticulum,it would likely be used as a(n)


A) treatment for osteoarthritis.
B) treatment for osteoporosis.
C) muscle relaxant.
D) stimulant for blood cell production.
E) promoter of muscle contraction.

F) All of the above
G) A) and B)

Correct Answer

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Which bone belongs to the appendicular skeleton?


A) skull
B) vertebra
C) rib
D) sternum
E) scapula

F) B) and C)
G) C) and D)

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Which bones articulate at the joint stabilized by the rotator cuff?


A) humerus and scapula
B) coxal bone and femur
C) radius and humerus
D) femur and tibia
E) scapula and clavicle

F) A) and E)
G) B) and D)

Correct Answer

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Which of these statements about contracting muscles is incorrect?


A) A contracting muscle shortens.
B) A contracting muscle uses cellular energy.
C) A contracting muscle may work as part of an antagonistic pair.
D) A contracting muscle can only push, it cannot pull.
E) A contracting muscle cannot push, it can only pull.

F) B) and E)
G) A) and C)

Correct Answer

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The cells that deposit bone matrix are termed


A) osteoclasts.
B) osteocytes.
C) osteons.
D) osteoblasts.
E) marrow cells.

F) B) and D)
G) C) and D)

Correct Answer

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In a sarcomere,thick filaments are composed of _____ and thin filaments of _____.


A) actin; myosin
B) sarcoplasm; actin
C) myosin; actin
D) Z lines; T tubules
E) myosin; sarcolemma

F) B) and C)
G) A) and D)

Correct Answer

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A grasshopper has a(n) _____ composed mainly of chitin.


A) exoskeleton
B) hydrostatic skeleton
C) metaskeleton
D) endoskeleton
E) preskeleton

F) None of the above
G) A) and B)

Correct Answer

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