Human Biology: Concepts and Current Issues
7th Edition
ISBN: 9780321821652
Author: Michael D. Johnson
Publisher: Benjamin Cummings
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Chapter 11, Problem 3TY
Summary Introduction
Introduction:
Nervous system is the hub where all the processing of the messages coming from different parts of the body. It comprises two sections in vertebrates, namely central and peripheral nervous system. The central part comprises of the brain and the spinal cord, while the peripheral section mainly comprises the nerves.
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Chapter 11 Solutions
Human Biology: Concepts and Current Issues
Ch. 11 - Prob. 1QCCh. 11 - Prob. 2QCCh. 11 -
1. Distinguish between the central nervous system...Ch. 11 - Explain what is meant by summation of graded...Ch. 11 - Describe, in terms of the opening and closing of...Ch. 11 - Prob. 4CRCh. 11 - Prob. 5CRCh. 11 -
6. List the three major divisions of the brain...Ch. 11 - Prob. 7CRCh. 11 - Prob. 8CR
Ch. 11 - Prob. 9CRCh. 11 - Prob. 10CRCh. 11 -
1. Which of the following statements correctly...Ch. 11 - Prob. 2TYCh. 11 - Prob. 3TYCh. 11 - What do multiple sclerosis and ALS (amyotropic...Ch. 11 - All of the following are directly involved in...Ch. 11 - An__________ neurotransmitter causes________ of...Ch. 11 - Prob. 7TYCh. 11 - Prob. 8TYCh. 11 - Prob. 9TYCh. 11 - Prob. 10TYCh. 11 - Prob. 11TYCh. 11 - Prob. 12TYCh. 11 - Prob. 13TYCh. 11 - Prob. 14TYCh. 11 - Prob. 15TYCh. 11 -
1. Explain in terms of brain anatomy and function...Ch. 11 - Prob. 2AWKCh. 11 - Prob. 3AWKCh. 11 - Prob. 4AWKCh. 11 - Prob. 5AWKCh. 11 - Prob. 6AWKCh. 11 - Prob. 7AWKCh. 11 -
8. Certain bacteria, such as those that cause...
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- Which 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_forwardWhat is the function of neuroglial cells in the nervous system?arrow_forwardWhich bulb shaped structures found at the end of neurons form connections with the dendrites and somas of other neurons and allow information to pass from one neuron to another? A. Myelin sheaths B. Ion channels C. Axon terminals D. Dendrite arcsarrow_forward
- An elderly neighbor was diagnosed with an astrocytoma tumor in the brain. This cancer affects what types of cell? a. ependymal cells b. microglia c. astrocytes d. satellite cellsarrow_forwardWhat is the electrical current that travels along neurons called? A. Neurotransmitter B. Action potential C. Contractions D. Electromagnetic wavearrow_forwardIn the sympathetic nervous system, which of the following prevents apoptosis? A. Steroid hormones B. Nerve growth factor C. Physical exercise D. Myelinationarrow_forward
- Where are neurotransmitter receptors located?(A) the nuclear membrane(B) the nodes of Ranvier(C) the postsynaptic membrane(D) synaptic vesicle membranesarrow_forwardAt rest, a neuron has a lower concentration of sodium than the surrounding fluid. When a neuron sends a signal, it opens sodium channels. What happens to the sodium when the sodium channels open? A. The sodium diffuses out of the cell. B. The sodium is pumped into the cell. C. The sodium is pumped out of the cell. D. The sodium diffuses into the cell.arrow_forwardWhich of the three types of nerves contains both sensory and motor neurons? a spinal cord b motor nerves c sensory nerves d mixed nervesarrow_forward
- How would nervous system function be affected if both the presynaptic and postsynaptic neurons at every synapse had both synaptic vesicles and neurotransmitter receptors?arrow_forwardOur nerve impulse travels from one neuron to the next in the form of. a. chemical signal b. electrical signal c. electromagnetic signal d. pressure signalarrow_forwardwhich of the following does not describe the somatic nervous system? A. motor neurons that innervate glands, cardiac and skeletal muscle B. a system of motor neurons that innervate all muscle cells c. voluntary nervous system d. general sensory for skin and joints.arrow_forward
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