Pain, especially intense sensations, is unpleasant and sometimes difficult for a person to cope with. Nevertheless, pain detection is essential for human survival. Explain how pain detection is necessary for a person's survival
What will be an ideal response?
Sensory receptors that detect pain are sensing potential deviations from homeostatic conditions. Specifically, sensory receptors have detected that either cell or tissue damage has occurred or certain stimuli that are present could evoke damage if not avoided. These sensory messages allow the body to avoid the stimuli and/or begin the process of tissue repair.
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During weeks 5 - 6 which major structural feature is present on the developing embryo?
a. Stubby tail b. Pharyngeal arches c. Lower limb buds d. Umbilical cord e. Distinct fingers and toes
In a muscle contraction, what specifically is the
role of calcium?
a. it causes the hydrolysis of ATP b. it connects actin with myosin to form a cross-bridge c. it causes the uncovering of the myosin binding site on actin d. it catalyzes the formation of ATP from ADP and Pi e. it causes the release of Pi from the myosin head
Biofilms are the immune system's way to keep pathogens from colonizing a host
Indicate whether the statement is true or false
The rate at which wastes are produced by a cell partially depends on the cell's
A) ratio of surface area to volume. B) type of membrane. C) volume. D) surface area.