Which of these movements or muscle groups is not controlled by motor information transmitted by the corticobulbar tracts?
A. Eye movements
B. Cranial, facial, pharyngeal, and laryngeal muscles
C. Intrinsic and extrinsic tongue muscles
D. Muscles of the upper leg
E. Certain superficial muscles of the back and neck
Answer: D
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Which of the following types of fibers are commonly found in the extracellular matrix of connective tissue?
a) Elastic b) Reticular c) Collagen d) All of these answer choices are correct. e) None of these answer choices are correct.
Which of the following is NOT true of a steroid hormone?
A. The hormone-receptor complex binds to DNA. B. It activates a second messenger to cause cellular changes. C. It diffuses into the cell and binds to its receptor protein. D. Intracellular enzymes, made from the DNA, direct cellular changes.
Receptors
a. may be either a specialized ending of an afferent neuron or a special cell closely associated with the peripheral ending of an afferent neuron. b. are present for every modality in the environment. c. when stimulated bring about opening of Na+ channels in the afferent neuron membrane adjacent to the receptor. d. two of these answers. e. all of these answers.
In your own words, define:
What will be an ideal response?