Ribs that have costal cartilage that attaches directly to the sternum are called
a) floating ribs.
b) vertebrochondral ribs.
c) false ribs.
d) true ribs.
e) separated ribs.
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Question 2) Compared to a solution with a pH of 7, a solution with a pH of 4 is
A. more acidic and has a 1,000-fold increase in H+.B. more acidic and has a 300-fold increase in H+.C. more basic and has a 1,000-fold increase in H+.D. more basic and has a 300-fold increase in H+.E. more basic and has a 300-fold decrease in H+.
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Question 3) To neutralize a base, a(n) ________ must be added.
A. acid B. buffer C. weak base D. hydroxide ion
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Question 4) Which type of movement involves a continuous sequence of flexion, abduction, extension, and adduction resulting in a distal body part moving in a circle?
a) Gliding
b) Lateral flexion
c) Hyperextension
d) Circumduction
e) Elevation
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Question 5) Which of the following is the largest foramen in the human skeleton?
a) Acetabulum
b) Obturator foramen
c) Vertebral foramen
d) Mental foramen
e) Foramen magnum
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Question 6) The addition of a buffer to liquid such as blood with a pH of 7.4 causes the pH to drop to 7.0 (chemically neutral).
Indicate whether this statement is true or false.
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Question 7) During the resting state of a voltage-gated Na+ channel,
1. the inactivation gate is open.
2. the activation gate is closed.
3. the channel is permeable to Na+.
a) 1 only
b) 2 only
c) 3 only
d) both 1 and 2 are true.
e) all of these choices are true.
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Question 8) Which of the following is NOT an event in the process of sensation?
a) Stimulation of sensory receptors
b) Transduction of the stimulus
c) Activation of effector
d) Generation of impulses
e) Integration of sensory input.
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Question 9) In the diagram, where is the fulcrum?
a) A
b) B
c) C
d) All of these choices
e) None of these choices
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Question 10) A postganglionic neuron in the ANS
a) releases neurotransmitter that binds to the effector cell.
b) is the first part of an autonomic motor pathway.
c) has its cell body in the brain or spinal cord.
d) has its axons exiting the CNS through cranial nerves.
e) carries information into the sympathetic chain ganglia.
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