Besides sending messages to and from the brain, the spinal cord has another important function: Reflexes. In fact, in very simple animals, that is the main function of the cord. In higher animals, reflexes are important because they provide
_____ protection from sudden or unexpected environmental harms.
_____ stimulation of the brain as a protection against atrophy in situations where voluntary movement is hindered, such as a coma.
_____ objective physical evidence of neurological injury.
_____ maintenance of life-sustaining processes such as breathing and heart beat, even while sleeping or unconscious.
__X__ protection from sudden or unexpected environmental harms.
_____ stimulation of the brain as a protection against atrophy in situations where voluntary movement is hindered, such as a coma.
__X__ objective physical evidence of neurological injury.
__X__ maintenance of life-sustaining processes such as breathing and heart beat, even while sleeping or unconscious.
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Coelomates are:
A. two embryos that develop in the same coelom B. animals that have a true coelom C. animals that have two coeloms D. animals that have no coelom E. animals in which the coelom disappears at gastrulation
Pit vipers are the only known vertebrates with an ability to detect a certain type of stimulus. What can these snakes sense?
A. infrared radiation B. ultraviolet radiation C. microwave radiation D. visible light radiation E. none of these
Transmission of the nerve impulse across a synapse is accomplished by
a. the release of Na+ at the presynaptic membrane b. the release of neurotransmitters at the postsynaptic c. the reception of neurotransmitters at the postsynaptic membrane d. only a and c are correct
Discuss how only one blocked metabolic pathway, such as the one leading from phenylalanine, has the potential to cause many different disorders
What will be an ideal response?