The sensory structures that enable the brains of most invertebrates to determine the orientation of the body with respect to gravity are called
A)carotid bodies.
B)statocysts.
C)Ruffini endings.
D)baroreceptors.
E)interoceptors.

Question

Quizplus · Accepted Answer

Statocysts are sensory structures found in most invertebrates that aid in detecting gravity and orientation. They contain statoliths, which are small, dense bodies that move in response to changes in position and stimulate hair cells that are connected to sensory neurons. Carotid bodies, Ruffini endings, and baroreceptors are all sensory structures found in vertebrates that sense oxygen levels, joint position, and blood pressure, respectively. Interoceptors are sensory receptors that sense stimuli from inside the body, such as hunger or thirst.

The Sensory Structures That Enable the Brains of Most Invertebrates