Make a map of the following terms: alpha motor neurons, CNS, contractile fibers, extrafusual muscle fibers, Golgi tendon organs, integrating center, joint receptors, muscle spindles, proprioreceptors, sensory neurons, sensory receptors and somatic motor neurons.
What will be an ideal response?
Skeletal muscle reflexes have the following components: Sensory receptors known as proprioreceptors–the three types are: muscle spindles, Golgi tendon organs, and joint receptors. Sensory neurons carry input from proprioreceptors to the CNS, the integrating center. Somatic motor neurons carry the output signal from the CNS; alpha motor neurons are somatic motor neurons that innervate skeletal muscle contractile fibers, known as extrafusual muscle fibers.
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Thyroxine is a peptide hormone, but its mechanism is different from other peptide hormones. Which of the following statements is true concerning this difference?
A) It causes positive feedback. B) It does not require a second messenger to effect a response. C) It is very specific in the cell type it targets. D) It is a stimulant of cellular metabolism and targets all cells.
Functions of muscles include
A) all of the above. B) heartbeat. C) muscle tone. D) moving bones.
Emphysema is a long-term inflammatory condition of the lower respiratory airways, generally triggered by frequent exposure to irritating cigarette smoke, polluted air, or allergens
a. True b. False Indicate whether the statement is true or false
At the base of a nail, keratinized skin called the cuticle is also called the
A) eponychium. B) lunula. C) hyponychium. D) cerumen. E) phalanx.