apu scin130 quiz 6

apu scin130 quiz 6

Question
	
Part 1 of 8 -
16.65/ 16.65 Points

Question 1 of 30
3.33/ 3.33 Points
If you were studying several organs working together to perform a particular function, you would be studying:
 A.An organism system
 B.A tissue system
 C.An organ system
 D.A cell system
 E.A metabolic system


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Question 2 of 30
3.33/ 3.33 Points


This figure shows a model of the negative feedback mechanism. What does "c" represent?
 A.Sensor
 B.Homeostasis
 C.Control center
 D.Stimulus
 E.Effect


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Question 3 of 30
3.33/ 3.33 Points
You are studying the differences between male and female humans. Based on your studies, which of the following systems vary the most in structure and function between males and females?
 A.The digestive system
 B.The immune system
 C.The reproductive system
 D.The cardiovascular system
 E.The nervous system


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Question 4 of 30
3.33/ 3.33 Points
Which of the following systems is useful in processing and absorbing nutrients?
 A.Urinary system
 B.Digestive system
 C.Respiratory system
 D.Reproductive system
 E.Lymphatic system


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Question 5 of 30
3.33/ 3.33 Points


This figure shows a model of the negative feedback mechanism. What does "a" represent?
 A.Homeostasis
 B.Effect
 C.Stimulus
 D.Control center
 E.Sensor


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Part 2 of 8 -
9.99/ 16.65 Points

Question 6 of 30
0.0/ 3.33 Points
You are dissecting a squid to determine what type of nervous system it has. Based on your dissection you conclude that it has:
 A.A ladderlike nervous system
 B.A nerve net
 C.A brain with a ventral nerve cord
 D.A brain with a dorsal nerve cord
 E.A ganglion nervous system


Feedback:In annelids (e.g., earthworm), arthropods (e.g., crab), and molluscs (e.g., squid), the nervous system shows further advances. The annelids and arthropods have the typical invertebrate nervous system. It consists of a brain and a ventral nerve cord that has a ganglion in each segment.
Question 7 of 30
3.33/ 3.33 Points

This figure shows the parts of a motor neuron. What does "c" represent?
 A.Schwann cell
 B.Axon terminal
 C.Cell body
 D.Node of Ranvier
 E.Dendrite


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Question 8 of 30
0.0/ 3.33 Points
If you were studying the two parts of the central nervous system in vertebrates you would be studying:
 A.A ganglion and spinal cord
 B.A brain and nerve net
 C.A brain and spinal cord
 D.A ganglion and nerve net
 E.A brain and ladderlike nervous system


Feedback:A vertebrate’s central nervous system (CNS) consists of a spinal cord and brain.
Question 9 of 30
3.33/ 3.33 Points

This figure shows the anatomy of the human brain. What does "e" represent?
 A.The pons
 B.The cerebellum
 C.The cerebrum
 D.The thalamus
 E.The corpus callosum


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Question 10 of 30
3.33/ 3.33 Points
The concentration of nerve tissue and sensory receptors in the head region is referred to as:
 A.Cephalization
 B.Parasympathetic
 C.Diencephalon
 D.Neuromodulation
 E.Autonomic


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Part 3 of 8 -
16.65/ 16.65 Points

Question 11 of 30
3.33/ 3.33 Points

This figure shows the anatomy of the human eye. What does "d" represent?
 A.The retina
 B.The cornea
 C.The lens
 D.The optic nerve
 E.The sclera


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Question 12 of 30
3.33/ 3.33 Points
Which are the mechanoreceptors that tell us the position of our body parts?
 A.Stereocilia
 B.Hair cells
 C.Cones
 D.Proprioceptors
 E.Rods


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Question 13 of 30
3.33/ 3.33 Points

This figure shows the anatomy of the human eye. What does "e" represent?
 A.The cornea
 B.The lens
 C.The sclera
 D.The retina
 E.The optic nerve


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Question 14 of 30
3.33/ 3.33 Points
A biologist is studying a decrease in response to stimuli. Based on this information you would conclude that he or she is studying which of the following?
 A.Sensory summation
 B.Sensory interpretation
 C.Sensory accommodation
 D.Sensory adaptation
 E.Sensory reception


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Question 15 of 30
3.33/ 3.33 Points
Which of the following is not part of the inner ear?
 A.The cochlea
 B.The vestibular nerve
 C.The cochlear nerve
 D.The stapes
 E.The semicircular canals


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Part 4 of 8 -
13.32/ 16.65 Points

Question 16 of 30
3.33/ 3.33 Points
If you were looking through a microscope at the tiny chambers where osteocytes are found you would be looking at:
 A. Osteons
 B.Central canals
 C. Lacuna
 D.The medullary cavity
 E.Canaliculus


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Question 17 of 30
3.33/ 3.33 Points

This figure shows the components of a muscle cell. What does "e" represent?
 A.The sarcolemma
 B.The sarcoplasm
 C.The sarcoplasmic reticulum
 D.A sarcomere
 E.A myofibril


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Question 18 of 30
3.33/ 3.33 Points
If you were studying the bones of the skull which of the following would not be included in your studies?
 A.Parietal
 B.Frontal
 C.Scapula
 D.Temporal
 E.Maxilla


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Question 19 of 30
3.33/ 3.33 Points
If you were studying the neuromuscular transmitter that is released from the axon terminals you would be studying:
 A.Calcium ions
 B.Acetylcholine
 C.ATP
 D.Lactic acid
 E.Creatine phosphate


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Question 20 of 30
0.0/ 3.33 Points
Which of the following organisms have an endoskeleton?
 A.Echinoderms
 B.Earthworms
 C.Flatworms
 D.Arthropods
 E.Molluscs


Feedback:Both echinoderms and vertebrates have an endoskeleton (internal skeleton).
Part 5 of 8 -
3.33/ 6.66 Points

Question 21 of 30
0.0/ 3.33 Points
What function did the oscilloscope perform in the simulation?
 A.It measured the time taken for the muscle to twitch.
 B.It displayed the number of fibers that contracted in the muscle.
 C.It delivered the stimulus to the muscle.


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Question 22 of 30
3.33/ 3.33 Points
If a muscle did not twitch after three tries at the first stimulus level what was the next step in the procedure?
 A.Replace the muscle with a different type.
 B.Set the stimulus to 10.0 volts and apply the stimulus three times.
 C.Apply the 80g weight and stimulate again at the same voltage.
 D.Increase the voltage of the stimulus by 0.5 volts and stimulate the muscle again.


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Part 6 of 8 -
9.99/ 9.99 Points

Question 23 of 30
3.33/ 3.33 Points
Which of the following muscles contract and relax slowly?
 A.Stretch
 B.Skeletal
 C.Cardiac
 D.Smooth


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Question 24 of 30
3.33/ 3.33 Points
Which of the following organs does not have smooth muscle?
 A.Heart
 B.Bladder
 C.Trachea
 D.Intestines


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Question 25 of 30
3.33/ 3.33 Points
The strength of a muscles’ contraction is determined by which of the following?
 A.Gender and age
 B.The amount of time the muscle is contracted
 C.Number of muscle fibers that respond
 D.The length of the muscle


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Part 7 of 8 -
9.99/ 9.99 Points

Question 26 of 30
3.33/ 3.33 Points
Rank the types of muscle in order of size of muscle overload (lowest to highest).
 A.Calf, thigh, lower forelimb, upper forelimb
 B.Upper forelimb, lower forelimb, thigh, calf
 C.Thigh, calf, upper forelimb, lower forelimb
 D.Lower forelimb, upper forelimb, calf, thigh


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Question 27 of 30
3.33/ 3.33 Points
It can be concluded from the data from the simulation that different muscle types:
 A.Cannot contract under 5 grams of workload
 B.Have different thresholds of stimulation
 C.Will only contract at 5.0 volts of stimulation or higher
 D.Have the same thresholds of stimulation


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Question 28 of 30
3.33/ 3.33 Points
The lower forelimb muscle was the smallest muscle. Its threshold stimulus was the smallest at ____ and its point of workload overload was the smallest at _______.
 A.2.0 volts, 20 grams
 B.2.0 grams, 20 volts
 C.20 grams, 2.0 volts
 D.20 volts, 2.0 grams


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Part 8 of 8 -
6.66/ 6.66 Points

Question 29 of 30
3.33/ 3.33 Points
Define two of the following: “all or none” response, oscilloscope, tendonAll or none response: When a muscle fiber is stimulated, either it gives full response or none at all.





Question 30 of 30
3.33/ 3.33 Points
Explain how biologists can determine the muscle’s threshold of stimulation under specific workloads.