Question 1 of 30
3.33/ 3.33 Points
Animals which get their heat from the outside environment are referred to as:
A.Adipothermic
B.Integuthermic
C.Homeothermic
D.Endothermic
E.Ectothermic Feedback: Good job!
Question 2 of 30
3.33/ 3.33 Points
Where in the human body would you expect to find smooth muscle?
A.Associated with nerves
B.Associated with tendons
C.In the heart
D.The digestive system E.Attached to bones
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Question 3 of 30
3.33/ 3.33 Points
Collagen and elastic fibers are found in _________ tissue.
A.Simple squamous
B.Epithelial
C.Nerve
D.Connective E.Muscle
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Question 4 of 30
3.33/ 3.33 Points
If you were studying the part of the brain which controls the temperature in the body you would be studying the:
A.Hypothalamus B.Pituitary gland
C.Frontal lobe
D.Temporal lobe
E.Cerebellum
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Question 5 of 30
0.0/ 3.33 Points
Which type of tissue will have cells bound end to end at intercalated disks?
A.Intercalated muscle B.Skeletal muscle
C.Stratified muscle
D.Smooth muscle
E.Cardiac muscle
Feedback: Cardiac muscle cells are separate and individual, but they are bound end-to-end at intercalated disks, areas where adhesion and gap junctions in folded plasma membranes allow the contraction impulse to spread from one cell to the other.
Part 2 of 8 - 13.32/ 16.65 Points
Question 6 of 30
3.33/ 3.33 Points
The brain and spinal cord are wrapped in protective membranes known as:
A.The meninges B.The hippocampus
C.The cerebrospinal membranes
D.The corpus callosum
E.The ventricles
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Question 7 of 30
3.33/ 3.33 Points
Diagramatic image of the human brain
This figure shows the anatomy of the human brain. What does "c" represent?
A.The cerebellum
B.The midbrain
C.The pons D.The thalamus
E.The corpus callosum
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Question 8 of 30
0.0/ 3.33 Points
Anatomy of a motor neuron
This figure shows the parts of a motor neuron. What does "e" represent?
A.Cell body
B.Dendrite
C.Node of Ranvier
D.Schwann cell
E.Axon terminal Feedback: See Figure 26.1B.
Question 9 of 30
3.33/ 3.33 Points
A biologist is studying the type of neuron which takes nervous impulses from sensory receptors to the central nervous system for integration. Based on this information you would conclude that he or she is studying which of the following?
A.An afferent neuron
B.An efferent neuron
C.A motor neuron
D.A ganglion neuron
E.An interneuron
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Question 10 of 30
3.33/ 3.33 Points
When the action potential "jumps" from node to node, thus increasing the speed of the nerve impulses, it is referred to as:
A.Synapse conduction
B.Refractory conduction
C.Depolarization conduction
D.Repolarization conduction
E.Saltatory conduction Feedback: Good job!
Part 3 of 8 - 9.99/ 16.65 Points
Question 11 of 30
0.0/ 3.33 Points
A biologist is studying deafness which results from sterocilia being damaged due to loud noises. Based on this information you would conclude that he or she is studying which of the following?
A.Conduction deafness
B.Semicircular deafness C.Ossicle deafness
D.Tympanic deafness
E.Nerve deafness
Feedback: Nerve deafness results from stereocilia damage due to exposure to loud noises.
Question 12 of 30
3.33/ 3.33 Points
Which structure in the human eye is responsible for controlling the shape of the lens?
A.The pupil
B.The ciliary body C.The retina
D.The sclera
E.The cornea
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Question 13 of 30
0.0/ 3.33 Points
Which of the following structures has a direct connection with the limbic system of the brain?
A.The olfactory cells B. The olfactory bulbs
C.The olfactory microvilli
D.The olfactory epithelium
E.The olfactory cilia
Feedback: The olfactory bulbs have direct connections with the limbic system and its centers for emotions and memory.
Question 14 of 30
3.33/ 3.33 Points
Color vision depends on three types of cones that contain pigments sensitive to either:
A.Red, white, or blue
B.Red, green, or blue C.Red, yellow, or blue
D.Green, blue, or yellow
E.Red, green, or orange
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Question 15 of 30
3.33/ 3.33 Points
Diagram of the anatomy of the human eye
This figure shows the anatomy of the human eye. What does "c" represent?
A.The lens B.The cornea
C.The optic nerve
D.The retina
E.The sclera
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Part 4 of 8 - 9.99/ 16.65 Points
Question 16 of 30
0.0/ 3.33 Points
Which of the following organisms have an endoskeleton?
A.Flatworms
B.Arthropods C.Molluscs
D.Echinoderms
E.Earthworms
Feedback: Both echinoderms and vertebrates have an endoskeleton (internal skeleton).
Question 17 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.Acetylcholine B.Creatine phosphate
C.Lactic acid
D.ATP
E.Calcium ions
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Question 18 of 30
3.33/ 3.33 Points
The pads of fibrocartilage between the vertebrae are referred to as:
A.Myosin disks
B.Articular disks
C.Axial disks
D.Intervertebral disks E.Synovial disks
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Question 19 of 30
3.33/ 3.33 Points
At the base of the skull, the spinal cord passes upward through a large opening called the:
A.Intervertebral opening
B.Synovial opening
C.Articular canal
D.Vertebral column
E.Foramen magnum Feedback: Good job!
Question 20 of 30
0.0/ 3.33 Points
Image showing the components of a muscle cell.
This figure shows the components of a muscle cell. What does "c" represent?
A.A sarcomere B.A myofibril
C.The sarcolemma
D.The sarcoplasmic reticulum
E.The sarcoplasm
Feedback: See Figure 28.9.
Part 5 of 8 - 3.33/ 6.66 Points
Question 21 of 30
3.33/ 3.33 Points
If you found the threshold of stimulation for a particular muscle at a particular workload the next step in the procedure was to:
A.Apply the stimulus three more times.
B.Increase the voltage and repeat the testing
C.Increase the workload by clicking and dragging the next heavier weight to the muscle. D.Replace the muscle with another muscle type
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Question 22 of 30
0.0/ 3.33 Points
Which of the following is not an objective of this lab simulation?
A.Measuring the threshold of stimulation for a type of skeletal muscle under different workloads
B.Measuring the strength of contraction of the different skeletal muscles under different workloads.
C.Comparing the points of muscle overload among different types of skeletal muscle
D.Comparing the threshold of stimulation under different workloads for different types of skeletal muscle Feedback: Refer to the lab for details.
Part 6 of 8 - 9.99/ 9.99 Points
Question 23 of 30
3.33/ 3.33 Points
What type of muscle is classified as involuntary?
A.Sensory
B.Smooth C.Skeletal
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Question 24 of 30
3.33/ 3.33 Points
The strength of a muscles’ contraction is determined by which of the following?
A.Number of muscle fibers that respond B.Gender and age
C.The length of the muscle
D.The amount of time the muscle is contracted
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Question 25 of 30
3.33/ 3.33 Points
Skeletal muscles are made up of:
A.A network of interconnected cells
B.Connective tissue called tendons
C.Sheets of densely packed cells
D.Individual cylindrical cells called fibers Feedback: Good job!
Part 7 of 8 - 3.33/ 9.99 Points
Question 26 of 30
0.0/ 3.33 Points
The lower forelimb had the _______threshold of stimulation. It also had the ______ point of muscle overload.
A.Highest, lowest
B.Highest, highest
C.Lowest, highest D.Lowest, lowest
Feedback: The lower forelimb had the lowest in both aspects whereas the thigh had the highest in both.
Question 27 of 30
3.33/ 3.33 Points
Stimulus voltages above threshold produced increasingly _________ spikes on the oscilloscope screen.
A.Flatter
B.Broader
C.Lower
D.Taller Feedback: Good job!
Question 28 of 30
0.0/ 3.33 Points
The simulation demonstrated that once the threshold stimulus was reached, the muscle __________ at higher stimulus voltages.
A.Would not contract
B.Would contract and then relax
C.Would contract and remain contracted D.Would fail under all workloads
Feedback: Refer to the lab simulation for details.
Part 8 of 8 - 6.33/ 6.66 Points
Question 29 of 30
3.0/ 3.33 Points
Write the names of the three types of muscle and give a location in the body for each
The names of the three types of muscles are cardiac which is found by the heart, smooth which is found by intestines and skeletal which are connected to the bone.
Comment: Smooth muscles are found in more places than just near the intestines.
Question 30 of 30
3.33/ 3.33 Points
Would a person at rest experience any muscle contractions? Explain.
A person at rest can experience muscle contractions. This is also known as muscle spasms. When the person moves there muscle a certain way or hold it in a certain postion it may contract.
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