Prelab 1 Flashcards
Transduction
any process by which a biological cell converts one kind of signal or stimulus into another.
photoreceptors
responsible for sensing wavelengths or light
mechanoreceptors
responsible for sensing touch and sound
chemoreceptors
responsible for sensing scent and taste
homoeostasis
body’s set points: temperature, blood pressure, heart rate
We spend most of our body’s energy on maintaining homeostasis. True or False?
True
We experience sensory information via emotional and rational homeostasis. True or false?
True
Emotional centers of brain process___
afraid or excited
Decision making parts of the brain will be influenced by
emotional and logical components of sensory info
Fovea
a small depression in the retina of the eye where visual acuity is highest. Where retinal cones are particularly concentrated/clustered surrounded by rods
macula lutea
white area; blind spot; where blood vessels and optic nerve (axons of retinal ganglion cells) leave your eye
adaptation
repetitive exposure to a stimulus leads to decrease in perceived intensity of sensation
5th cranial nerve complex
trigeminal
cranial nerve for smell?
1st cranial nerve/ olfaction
trigeminal nerve located?
throughout nasal cavity
Sense of smell is special as only sense where info is sent through thalamus before being processed by other areas in the cortex. True or False?
True
Certain scents may trigger intense memories. True or False?
True
