A myofilament that runs through the core of a thick filament and anchors it to a Z disc is called a(n) ________.
A. elastic filament
B. myofibril
C. sarcolemma
D. T tubule
E. thin filament
Answer: A
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On axial CT images of the neck, the structure immediately posterior to the trachea is the ____________________.
Fill in the blank(s) with the appropriate word(s).
What layer of the skin contains the cold thermoreceptors?
a) Stratum lucidum b) Dermis c) Stratum basale d) Stratum corneum e) Hypodermis
Which region of the spinal cord does NOT contribute in a major way to any of the plexus es?
A. Cervical B. Brachial C. Thoracic D. Sacral
Define dual innervation
A) Dual innervation means that a given body system sends both sensory impulses and receives motor commands. B) Dual innervation means that a given body system receives instructions from both the central and peripheral nervous systems. C) Dual innervation means that sensory neurons and motor neurons are present in the tissue. D) Dual innervation means that a given body system has twice the amount of neural stimulation needed to produce an action. E) Dual innervation means that a given body system receives instructions from both the sympathetic and parasympathetic divisions of the ANS.