Match Each Term with Its Definition

question 101

Multiple Choice

Match each term with its definition.
-muscle spindles

• A)single units of a compound eye
• B)allow animals to detect and use Earth's magnetic field for navigation
• C)structure that creates pressure waves in the cochlea as it vibrates
• D)reduction in the frequency of action potentials generated by afferent neurons even though the stimulus has not changed
• E)commonly known as the eardrum
• F)specialized receptors that detect electrical fields
• G)viscous liquid filling the human eye cavity between the retina and lens
• H)responsible for terrestrial vertebrates' ability to perceive motion and position of the head
• I)process of converting a stimulus into a change in the membrane potential
• J)cells in the human eye that connect bipolar cells and ganglion cells
• K)dendrites of afferent neurons, or specialized cells that synapse with afferent neurons, that can gather information about the environment
• L)calcium carbonate crystals that bend stereocilia as a result of movement of the head
• M)a duct that eliminates pressure differentials that can occur between the outer and middle ear
• N)process by which the contrast between dark and light is increased in visual processing in the mammalian eye
• O)family of photopigments consisting of opsins combined with retinal
• P)photopigment found in vertebrate and invertebrate eyes alike
• Q)clear liquid between the cornea and the lens of a human eye
• R)cells in the human eye that connect different photoreceptor cells to each other
• S)where a portion of each optic nerve crosses to the opposite side of the brain
• T)detect stimuli used for balance and the perception of body position
• U)small region in the retina where cones are concentrated
• V)specialized muscle cells surrounded by afferent neuron dendrites; detect the degree of stretching that a muscle is undergoing
• W)the site in the thalamus where most optic axons make synapses with interneurons leading to the visual cortex
• X)hollow sensory bristles in insects

---

Definitions:

Cell Body

The part of a neuron that contains the nucleus and most of the cytoplasm and where the metabolic work of the cell is done.

Neuron

A nerve cell that is the basic building block of the nervous system, responsible for transmitting information throughout the body.

Biochemical Machinery

The complex systems and processes of biochemical reactions and interactions within living organisms.

Autonomic Nervous System

The part of the nervous system that controls involuntary bodily functions, including heart rate, digestion, and respiratory rate.