Chapter 16 SMI Bio 11191 Flashcards
(23 cards)
What is sensation?
Conscious or subconscious awareness of changes in the external or internal environment
Perception is ?
The conscious interpretation of sensations performed mainly by the cerebral cortex
Difference between sensation and perception in terms of conscious or subconscious awareness ?
Sensation is both conscious and subconscious awareness and perception is the conscious INTERPRETATION of the sensation
What is each type of sensation called? And the 4 examples of it.
Sensory modality, (touch, pain, vision, and hearing)
What are the 2 groups of sensory modalities?
General senses and special senses
What are the 2 general senses and name the aspects within them
Somatic (tactile,thermal,proprioceptive)
Visceral (pressure,chemicals, stretch, hunger, temperature, nausea)
What are the 5 special senses?
Smell, taste, hearing, vision, equilibrium
Different type of …. Receptors are involved in the different senses
Sensory
What are free nerve endings for?
To detect pain, itch, tickle, temperature and some touch
What are encapsulated nerve endings for ?
To detect pressure, vibration and some touch
What are the receptor cells called for taste buds, retina of the eye, and in the inner ear for hearing
Gustatory receptor cells, photoreceptors, hair cells
Sensations result in and evoke 2 kinds of perceptions?
Conscious perception and subconscious awareness
What is conscious perception?
The conscious interpretation of sensations performed mainly by the cerebral cortex
What is subconscious awareness?
Your body knowing changes have occurred in the external or internal environment
Exteroreceptors include what?
Hearing, vision, smell, taste, touch, pressure, vibration and pain
Interoreceptors monitor what
The body’s internal environment
Receptors are grouped based on what?
On the location of the receptors and the origin of the stimuli that activate them
Proprioceptors provide what
Information about body position, muscle length and tension and the position and movement of joints
What are “separate cells”
Receptors cells synapsing with first-order sensory neurons; photoreceptors, hair cells, gustatory receptor cells
Tactile corpuscle senses?
Onset of touch and low-frequency vibrations
Bulbous corpuscle senses
Senses skin stretching and pressure
Hair root plexus senses
Movements on skin surface that disturb hairs
Lamellar corpuscle senses
Senses high-frequency vibrations
