Human Anatomy
5th Edition
ISBN: 9780073403700
Author: Kenneth S. Saladin Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 11.1, Problem 1BYGO
What is meant by the innervation of a muscle? Why is it important to know this? What two major groups of nerves innervate the skeletal muscles?
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Chapter 11 Solutions
Human Anatomy
Ch. 11.1 - What is meant by the innervation of a muscle? Why...Ch. 11.1 - Prob. 2BYGOCh. 11.2 - Of the muscles you have studied so far, name three...Ch. 11.2 - Name two muscles that elevate the upper lip and...Ch. 11.2 - Name the four paired muscles of mastication and...Ch. 11.2 - Distinguish between the functions of the...Ch. 11.2 - List the prime movers of neck extension and...Ch. 11.3 - What muscles are eaten as “spare ribs”? What is...Ch. 11.3 - Prob. 7BYGOCh. 11.3 - Prob. 8BYGO
Ch. 11.3 - Name a major superficial muscle and two major deep...Ch. 11.3 - Define perineum, urogenital triangle, and anal...Ch. 11.3 - Name one muscle in the superficial perineal space,...Ch. 11 - Prob. 11.1.1AYLOCh. 11 - Prob. 11.1.2AYLOCh. 11 - Prob. 11.2.1AYLOCh. 11 - Prob. 11.2.2AYLOCh. 11 - Prob. 11.2.3AYLOCh. 11 - Prob. 11.2.4AYLOCh. 11 - Prob. 11.2.5AYLOCh. 11 - Three muscles of the cheek, chin, and anterior...Ch. 11 - The difference between the intrinsic and extrinsic...Ch. 11 - Four extrinsic tongue muscles-the genioglossus,...Ch. 11 - Prob. 11.2.9AYLOCh. 11 - Prob. 11.2.10AYLOCh. 11 - Prob. 11.2.11AYLOCh. 11 - Four muscles of the infrahyoid group-the omohyoid,...Ch. 11 - Prob. 11.2.13AYLOCh. 11 - Prob. 11.2.14AYLOCh. 11 - Prob. 11.2.15AYLOCh. 11 - Prob. 11.2.16AYLOCh. 11 - The diaphragm and the three layers of intercostal...Ch. 11 - Prob. 11.3.2AYLOCh. 11 - Prob. 11.3.3AYLOCh. 11 - Prob. 11.3.4AYLOCh. 11 - Prob. 11.3.5AYLOCh. 11 - Prob. 11.3.6AYLOCh. 11 - Prob. 11.3.7AYLOCh. 11 - The boundaries of the perineum; its two triangles;...Ch. 11 - Prob. 11.3.9AYLOCh. 11 - Prob. 11.3.10AYLOCh. 11 - Prob. 11.3.11AYLOCh. 11 - Prob. 11.3.12AYLOCh. 11 - Prob. 1TYRCh. 11 - Prob. 2TYRCh. 11 - Which of these is not a suprahyoid muscle?...Ch. 11 - Prob. 4TYRCh. 11 - Prob. 5TYRCh. 11 - Prob. 6TYRCh. 11 - Prob. 7TYRCh. 11 - Prob. 8TYRCh. 11 - A muscle that aids in chewing without moving the...Ch. 11 - Prob. 10TYRCh. 11 - Prob. 11TYRCh. 11 - Prob. 12TYRCh. 11 - Prob. 13TYRCh. 11 - Prob. 14TYRCh. 11 - Prob. 15TYRCh. 11 - Prob. 16TYRCh. 11 - Prob. 17TYRCh. 11 - Prob. 18TYRCh. 11 - Prob. 19TYRCh. 11 - Prob. 20TYRCh. 11 - Prob. 1BYMVCh. 11 - Prob. 2BYMVCh. 11 - Prob. 3BYMVCh. 11 - Prob. 4BYMVCh. 11 - Prob. 5BYMVCh. 11 - Prob. 6BYMVCh. 11 - Prob. 7BYMVCh. 11 - State a meaning of each word element and give a...Ch. 11 - Prob. 9BYMVCh. 11 - Prob. 10BYMVCh. 11 - Prob. 1TOFCh. 11 - Prob. 2TOFCh. 11 - Prob. 3TOFCh. 11 - Prob. 4TOFCh. 11 - Prob. 5TOFCh. 11 - Prob. 6TOFCh. 11 - Prob. 7TOFCh. 11 - Prob. 8TOFCh. 11 - Prob. 9TOFCh. 11 - Prob. 10TOFCh. 11 - Name one antagonist of each of the following...Ch. 11 - Name one synergist of each of the following...Ch. 11 - Prob. 3TYCCh. 11 - Remova of cancerous lymph nodes from the neck...Ch. 11 - Prob. 5TYC
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- Why is an interneuron needed to provide reciprocal inhibition of the flexor muscle when an extensor muscle is activated?arrow_forwardDescribe a muscle spindle and its function considering the following items. Use all terms in paragraph form to describe: - Extrafusal fibers - Intrafusal fibers - Alpha motor neurons - Gamma motor neurons - Capsule - Contraction - Afferent nerve fiber - Somatic reflex (as in the patellar reflex)arrow_forwardIn a general sense, how do skeletal muscles produce movement?arrow_forward
- How would you explain the following observation? When motor nerve fibers in the leg are severed, the muscles they innervate become paralyzed; however, in time, control over the muscles often returns.arrow_forwardWhat are the two neurotransmitters involved in excitation and inhibitation of muscles?arrow_forwardLower back pain is quite common in America and treatments for this pain include muscle relaxants. How does the drug cyclobenzaprine work as a muscle relaxant at a cellular level? Which part of the muscle contraction is interrupted by cyclobenzaprine? Is it effective on the muscle itself or active in the central nervous system?arrow_forward
- What do you mean by innervation of skeletal muscles?arrow_forwardMuscle spindles are the sensory receptors that monitor the length of skeletal muscles. When the length of the hamstrings changes between standing and seated positions, which structure is responsible for adjusting the length of the intrafusal muscle fibers of the muscle spindle? Group of answer choices beta motor neurons gamma motor neurons extrafusal fibers alpha motor neuronsarrow_forwardPut the following events in chronological order. (Some of the steps may be missing.)1) Ca*+ floods into the pre-synaptic neuron.2) ch (Acetylcholine) binds to ACh receptors in the sarcolemma.3) Na+ floods into the post-synaptic muscle cell.4) The A.P arrives at the pre-synaptic terminal causing Ca+ channels to open.5) Ach from the synaptic vesicles spills into the pre-synaptic cleft.6) A post-synaptic action potential results in the muscle fiber (depolarizationarrow_forward
- Why is it important to remove acetylcholine from its binding to acetylcholine receptors once the neural stimulus ends? What can be the possible consequence of the non-removal of acetylcholine to the skeletal muscle fiber?arrow_forwardMotor neurons release what type of neurotransmitter onto the motor end plate of skeletal muscles? What effect does this neurotransmitter have on the postsynaptic membrane?arrow_forwardWe've referred to alpha-motor neurons as the "decision making centre" for whether or not a muscle fibre contracts. Which of the following statements are true with regards to his concept? Select all that apply. O Alpha motor neurons receive input from many different sources, the balance of which determines whether or not the alpha-motor neuron fires an action potential O Alpha motor neurons are involved in conscious decision making in our central nervous system for planning and executing movements O When an action potential is initiated in an alpha-motor neuron, we are guaranteed an action potential in the muscle fibre, and hence contraction of that fibre. This means the muscle itself does not determine whether or not it contracts O Alpha motor neurons report information on where we are in space (proprioception) back to the central nervous systemarrow_forward
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