Cardiopulmonary Anatomy & Physiology
7th Edition
ISBN: 9781337794909
Author: Des Jardins, Terry.
Publisher: Cengage Learning,
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Chapter 12, Problem 7RQ
Summary Introduction
Introduction:
Action potentials are the
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Chapter 12 Solutions
Cardiopulmonary Anatomy & Physiology
Ch. 12 - 1. Which of the following is the rapid upstroke in...Ch. 12 - Prob. 2RQCh. 12 - Prob. 3RQCh. 12 - Prob. 4RQCh. 12 - Which of the following slows the heart rate and AV...Ch. 12 - Prob. 6RQCh. 12 - Prob. 7RQCh. 12 - Which of the following means the ability to...Ch. 12 - An electrical difference across the fibers of the...Ch. 12 - Prob. 10RQ
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- Which of the following is not a special characteristic of neurons? a. they are long-lived lasting an individual’s lifespan b. they are all amitotic c. they have a high metabolic rate d. all of the above e. none of the abovearrow_forwardWhich of the following is not excitable or have the capacity to generate electrical signals? Select one: a. Neuron b. Cardiac Muscle cell c. Skeletal Muscle d. Skin cellarrow_forwardPreparing the body for the "fight-or-flight" response is the role of the a.parasympathetic division b.somatic nervous system c.cerebrum d.sympathetic divisionarrow_forward
- Which of the following statements describe a characteristic of the human body? a. Under certain conditions your body’s resistance can be low as a few hundred ohms. b. The lower the resistance of your body, the more current that can be forced through it by a given amount of voltage. c. The resistance of your body is lower than the normal when you are wet. d. All of the above. EXPLAINarrow_forwardNeurons come in which different type(s)? A. Sensory B. Motor C. Skeletal D. A and Barrow_forwardDamage to neurons from Alzheimer's disease may prevent neurons from receiving signals from other neurons. Which of the following structures of a neuron is first affected by the damage? Select one: a. Axon b. Cell Body c. Axon Terminal d. Dendritesarrow_forward
- 1. Neural communication occurs through chemical messengers called neurotransmitters which send messages from one neuron to another. Which if the following statements about neurotransmitter signaling is correct?A. Neurotransmitters are local regulators that enable long-distance communication between neurons.B. Neurotransmitters are long-distance regulators that enable long or short-distance communication among neurons.C. Neurotransmitters are long-distance regulators that enable short-distance communication among neurons.D. Neurotransmitters are local regulators that enable short-distance communication between neurons. 2. Which of the following statements about histones is true?A. Histones do not undergo modifications once attached to DNA.B. The location of a gene relative to histone surface will affect gene expression.C. Histone modifications can only affect gene expression.D. Histone octamer is composed of dimers of H1, H2, H3, and H4. 3. Which of the following can explain why humans…arrow_forwardWhich of the following statements about potency is correct? O A. Committed progenitors have more potency than totipotent stem cells. B. Multipotent stem cells have higher potency than pluripotent stem cells. C. Unipotent stem cells are different from normal somatic cells because they can self-renew. D. Adult tissues have many totipotent stem cells in their niche.arrow_forwardCatecholamine (Epinephrine)-blockers are often used as a treatment to dilate blood vessels and therefore decrease arterial blood pressure (as a treatment for hypertension). This fact is excellent evidence to prove that the nervous system normally controlling the diameter of the arterial blood vessels is the: a. Somatosensory nervous system b. Sympathetic nervous system c. Reticular attenuating nervous system d. Parasympathetic nervous systemarrow_forward
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