Vestibular and Somatosensory Systems Quiz

What structures make up the vestibular system?

• Saccule and utricle

• Cochlea and semi-circular canals

• Ampulla and cristae ampullares

• Otolith organs and semi-circular canals

Which receptors detect changes in head tilt relative to the body?

• Cristae ampullares

• Pacinian corpuscles

• Golgi tendon organs

• Otolith organs

What is the main function of the semi-circular canals?

• Detecting changes in head tilt

• Sensing angular acceleration and deceleration

• Responding to changes in temperature

• Detecting pressure changes in the ear

Which pathway do hair cells in the vestibular system use to transmit information to the brain?

• Optic nerve

• Vestibulospinal tract

• Eighth cranial nerve

• Olfactory nerve

What is the primary function of the somatosensory system?

• Maintaining balance

• Detecting changes in temperature

• Sensing movement of internal organs

• Perceiving touch, pain, and body position

Which receptors respond to rapid changes in touch, such as slippage?

• Meissner's corpuscles

• Merkel's discs

• Pacinian corpuscles

• Ruffini endings

What is the term for the phenomenon where exposure to warmer temperatures changes the response of temperature receptors to tepid water?

• Sensory adaptation

• Across-fiber coding

• Selective adaptation

• Temperature inversion

Which pathway primarily carries somatosensory information related to touch and proprioception?

• Cortico-spinal tract

• Medial lemniscal pathway

• Ventro-medial tract

• Medial lemniscal pathway

What is the main function of the Golgi reflex?

• To counteract muscle stretch

• To withdraw from painful stimuli

• To control body temperature

• To modulate proprioceptive signals

Which condition is characterized by symptoms such as rigidity, tremors, and difficulty initiating movement?

• Alzheimer's disease

• Parkinson's disease

• Multiple sclerosis

• Huntington's disease