Senses and Nervous System
Initiates a sensory reaction (Hint: the start of any sensory pathway)
Stimulus
The area of the retina where the optic nerve enters the eye.
Blind spot
The white part of the eye.
Sclera
The funnel-shaped portion of the external ear.
Pinna
The five primary taste sensations.
Sweet, sour, salty, bitter, and umami
The two parts of the CNS
Brain and spinal chord
Structures that pick up stimuli and convert them into nerve signals
Sensory receptors
The scientific name for the vision condition where you are considered near-sighted
Myopia
The clear layer on the outside of your eye that helps to bend light.
Cornea
The sensory receptor type for the sense of hearing.
Hair-cells in the cochlea
The type of receptor used for smell
Olfactory cilia
Part of the brain responsible for thinking, movement and the senses
Cerebrum
The 5 senses
Taste, touch, smell, hearing and vision
The phenomenon in which the lens adjusts its shape to focus on an object
Accommodation
The type of sensory receptor that senses light and color.
What are photoreceptors?
The small bones located in the middle ear
Ossicles
Layer of the skin that contains the pigment (melanin)
Dermis
Part of the brain responsible for balance and posture
Cerebellum
The main divisions of the nervous system
Central nervous system (CNS) and peripheral nervous system (PNS)
Type of lens required to fix the vision of a person with hyperopia
Convex
The dark, vascular layer that supplies nutrients to the retina and reduces light reflection in the eye.
Choroid
The organs used for balance and detecting motion
The vestibule and semi-circular canals
Layer of the skin with the sensory receptors
Dermis
A function of the brainstem
autonomic functions
ex: breathing, heart rate, digestion, etc
Type of neuron that carries a message from the CNS to a muscle
Motor neuron
An involuntary reaction to a stimulus
Reflex
Photoreceptors that detect color and light in brightness.
Cones
The structure that enables your ears to maintain equal air pressure on either side of the tympanic membrane.
What is the Eustachian tube
The structures that contain the taste buds
Papillae
Type of neurons located in the CNS
Interneuron