Exam 4 - Ch. 13
Anatomy & Physiology 2401 with Jacaruso at Tarrant County College
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By: Jamie Heath
Created: 2012-05-08
Size: 54 flashcards
Views: 9
Created: 2012-05-08
Size: 54 flashcards
Views: 9
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What is sensation?
recognize some stimulus
What is perception?
aware and interpret what it is
What is the function of sensory receptors?
Respond to stimuli
What is the pathway from the point of stimulus to the CNS?
Sensory receptor depolarizes to graded potential ? afferent action potential via sensory neuron ? CNS
Mechanoreceptors detect what?
touch, pressure, vibrations
Osmoreceptors detect what?
osmotic pressure
Photoreceptors detect?
in your eye for light waves
Thermoreceptors detect what?
in your skin for temp changes
Chemorceptors detect what?
respond to disolved chemicals
nocieceptors are what?
harmful at extremes
What are the 3 types of sensory receptors based on location?
1. Exteroceptors 2. Interoceptors 3. Proprioceptors
Function: Exteroceptors
Respond to touch, pressure, vibration, temp
Function: Interoceptors
Respond to organs
Function: Proprioceptors
In skeletal muscles, tendons, joints, ligaments, connective tissue covering bone and muscle,inner ear
Receptors of special sense organs
Exteroceptors
Receptors for monitoring lung pressure
Interoceptors
Receptors for degree of stretch, position of body
Proprioceptors
Receptor level, what happens?
sensory receptors
Circuit level , what happens?
ascending pathways
Perceptual level, what happens?
neurological circuits in the cerebral cortex
Rapidly adapting receptors respond to?
touch, vibrations
Slowly adapting receptors respond to?
body position, pain
T/F: Some start out as rapidly adapting receptors, then become slow adapting receptors
true
Perceptual detection
know a stimulus has occurred
Magnitude estimation
you know how strong it is
Spatial discrimination
know the area that has been stimulated
Endogenous opioids are produced by what?
your body for pain
only cranial nerve that goes further than head and neck
vagus
Can nervous tissue regenerate in the CNS? If regeneration can occur, what part of the neuron can regenerate?
no
Can it regenerate in the PNS? If regeneration can occur, what part of the neuron can regenerate?
yes; axon
What are the 3 types of nerves?
1. sensory 2. motor 3. mixed
Know the ganglia associated with afferent nerve fibers.
sensory
Know the ganglia associated with efferent nerve fibers.
motor
What 3 nerves control eyeball movement?
Oculomotor (III), Trochlear(IV), and Abducens (VI)
Which 3 nerves control taste?
Facial (VII), Glossopharyngeal (IX), and Vagus (X)
What is the function of the Olfactory (I) nerve?
smell
What is the function of the Optic (II) nerve?
vision
What is the function of the Trigeminal (V) nerve?
chewing
What is the function of the Vestibulocochlear (VIII) nerve?
hearing and balance
What is the function of the Accessory (XI) nerve?
Traoezuis and sternocleidomastoid muscles
What is the function of the Hypoglossal (XII) nerve?
tongue movement
Dorsal (posterior) roots contain ______ fibers and use the afferent pathyway
sensory
Ventral (anterior) roots contain ______ fibers and use the efferent pathways
motor
branch off spinal nerve
ramus
What are the 4 nerve plexuses?
1. cervical 2. brachial 3. lumbar 4. sacral
area of skin innervated by a branch of a single pair of nerves
Dermatome
rapid involuntary movement to a stimulus
reflex
stretching the patellar ligament
Patellar reflex
stretching the achellias tendon
Achilles reflex
grab your arm and move it away
Flexor (withdrawal) reflex
pushing them away as the grab the other arm
Crossed extensor reflex
sharp object on your foot and toes curl
Plantar reflex
dim room (dilates), light (contract)
Pupillary reflex
lightly touch hairs on back of head and the pupils dialate
Ciliospinal reflex
About this deck
By: Jamie Heath
Created: 2012-05-08
Size: 54 flashcards
Views: 9
Created: 2012-05-08
Size: 54 flashcards
Views: 9
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
STUDYBLUE exists to make studying efficient and effective for every student, for free. Join us.
“Simply amazing. The flash cards are smooth, there are many different types of studying tools, and there is a great search engine. I praise you on the awesomeness.”
Dennis
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