Start Key Terms: Anatomy & Physiology: The Brain and Cranial

Question: auricle

Choices:

fleshy external structure of the ear

Question: ampulla

Choices:

in the ear, the structure at the base of a semicircular canal that contains the hair cells and cupula for transduction of rotational movement of the head

Question: ascending pathway

Choices:

fiber structure that relays sensory information from the periphery through the spinal cord and brain stem to other structures of the brain

Question: association area

Choices:

region of cortex connected to a primary sensory cortical area that further processes the information to generate more complex sensory perceptions

Question: amacrine cell

Choices:

type of cell in the retina that connects to the bipolar cells near the outer synaptic layer and provides the basis for early image processing within the retina

Question: audition

Choices:

sense of hearing

Question: aqueous humor

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watery fluid that fills the anterior chamber containing the cornea, iris, ciliary body, and lens of the eye

Question: Betz cells

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output cells of the primary motor cortex that cause musculature to move through synapses on cranial and spinal motor neurons

Question: anosmia

Choices:

loss of the sense of smell; usually the result of physical disruption of the first cranial nerve

Question: alkaloid

Choices:

substance, usually from a plant source, that is chemically basic with respect to pH and will stimulate bitter receptors

Question: anterior corticospinal tract

Choices:

division of the corticospinal pathway that travels through the ventral (anterior) column of the spinal cord and controls axial musculature through the medial motor neurons in the ventral (anterior) horn