Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
35 Cards in this Set
- Front
- Back
|
What is a sensory receptor? |
Specialized nerve endings, each converts a specific type of stimulus into an action potential |
|
|
Touch |
Responds to pressure (merkel endings) |
|
|
Temperature |
Krause end-bulb, free nerve endings |
|
|
Nociceptors |
Pain receptors, Free nerve endings |
|
|
Sharp Pain nerve fibers are? |
myelinated nerve fibers |
|
|
Dull ache nerve fibers are? |
nonmyelinated nerve fibers |
|
|
What are the special senses? (5) |
1. Gustation 2. Olfaction 3. Hearing 4. Equilibrium 5. Vision |
|
|
Gustation |
Taste |
|
|
Function of taste? |
to allow animals to distinguish between healthful and harmful foods |
|
|
PICA |
term for abnormal appetite. often associated with dietary deficiencies |
|
|
Tasteful cranial nerves? |
vii- Facial nerve ix- Glossopharyngeal nerve |
|
|
filiform papillae |
no taste buds here |
|
|
Vallate (circumvallate) papillae |
taste buds here, round shape |
|
|
Fungiform papillae |
taste buds here, round mushroom shape |
|
|
Foliate papillae |
taste buds, triangular, leaf shape, not in ruminants |
|
|
Lenticular papillae |
only in ruminants |
|
|
Dissolved substances enters taste ____ of taste bud via the taste pore |
pit |
|
|
Dissolved substance comes into contact with the taste ______ |
hair |
|
|
Where is the olfactory region? |
Deep in the nasal passages |
|
|
Macrosmatic |
Animals with keen sense of smell |
|
|
Microsmatic |
less developed sense of smell |
|
|
Pheromones |
Odor communications/ substances released by one animal that affects the behavior of another. |
|
|
External ear parts |
1. Pinna 2. External ear canal 3. Tympanic membrane |
|
|
Middle ear parts |
1. Auditory ossicles 2. Tympanic cavity 3. Opening to auditory canal |
|
|
inner ear parts |
1. Cochlear portion 2. Vestibular portion |
|
|
Pinna function |
funnels sound waves, movement help pinpoint sounds |
|
|
Ear canal function |
funnels sound to tympanic membrane |
|
|
what is a tympanic membrane? |
tightly stretched thin connective tissue membrane |
|
|
What do ossicles do? |
transmit sound vibrations from ear drum to inner ear |
|
|
order of middle ear? |
1. Malleus 2. Incus 3. Stapes |
|
|
Auditory (Eustachian) tube function |
to equalize pressure between outer and middle ear |
|
|
Auditory (Eustachian) tube location
|
Opens into the tympanic cavity of middle ear |
|
|
Cornea |
Transparent rostral portion of eye |
|
|
Sclera |
Tough white outer layer |
|
|
Limbus |
Junction between sclera and cornea |
