When a Person Displays a "Startle Response," in Which Reflexive

question 55

Multiple Choice

When a person displays a "startle response," in which reflexive changes in the position of the head, neck, and upper limbs occur in response to bright lights, sudden movements or loud noises, which of the following regions is responsible?

• A) vestibular nuclei
• B) reticulospinal tracts
• C) cerebral nuclei
• D) rubrospinal tracts
• E) tectospinal tracts

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Definitions:

Plate Tectonics

The scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates of the Earth's lithosphere.

Biogeographers

Scientists who study the distribution of species and ecosystems in geographic space and through geological time.

Paleobiologist

A scientist who studies ancient life and ecosystems through the examination of fossilized remains and geological context, aiming to understand the evolution of life on Earth.

Marine Invertebrate Fossils

Fossils of animals that lived in the sea and did not possess a vertebral column, important for understanding Earth's history and evolution.