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Amphibs/Reptiles
JJC Vet Tech 216
194
Veterinary Medicine
Undergraduate 2
11/15/2014

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Cards

Term
Toad vs Frog
Definition
Toad: mostly terrestrial, bumpy/warty (mucus or poison glands)

Frog: mostly aquatic, thin/smooth/delicate skin
Term
Species of amphib commonly used for dissections? What else is this species used for?
Definition
American Bullfrog; culinary use = frog legs
Term
The highest diversity is found within what group of amphibs?
Definition
Anura (frogs/toads)
Term
Name the 3 main groups of amphibians that we covered in class:
Definition
-Anura (frog/toad)
-Caudata (salamander/newt)
-Gymnophiona (caecilians)
Term
When it comes to environmental health, what group is considered "canaries in the coal mine"?
Definition
Anura- skin really permeable, so sensitive to enviro changes/pollutants
Term
In addition to overall declining numbers of Anura species, what else has been found in these species lately?
Definition
-bizarre deformities
Term
What has contributed to declining #s of Anura spp?
Definition
-habitat loss
-contaminants (pollutants/insecticides)
-exotic pet trade
Term
Name the group containing frogs and toads:
Definition
Anura
Term
Name the group containing salamanders and newts:
Definition
Caudata
Term
Name the group containing caecilians:
Definition
Gymophiona
Term
The word "Anura" means:
Definition
no tail
Term
The word "Caudata" means:
Definition
with tail
Term
The word "Gymnophiona" means:
Definition
limbless/wormlike
Term
Species of amphib commonly used in biomedical research?
Definition
African Clawed Frog
Term
What species of toad is fully aquatic?
Definition
Suriname toad (also, babies hatch out of back like disgusting little parasites)
Term
What kind of amphib retains its larval state, never progressing to the adult stage?
Definition
Axolotl
Term
What type of amphibs are used in limb regeneration research?
Definition
newts and axolotls
Term
What species of Anura was available until 2002 in pet stores, despite being extinct in the wild?
Definition
Golden Mantella
Term
Describe the life cycle of amphibians:
Definition
egg > larva with gills (tadpole) > larva with limb buds (metamorph) > metamorphosis into air-breathing adult
Term
What organs of respiration does an amphibian have?
Definition
gills and lungs
Term
Do amphibians have a diaphragm?
Definition
No, body cavity = ceolom
Term
Gas exchange in the amphibian:
Definition
-gas exchange on skin surface, so they don't need to breathe via mouth as much
-helpful during hibernation
Term
How are amphibians anaesthetized?
Definition
-don't breathe much through mouth
-MS-222 mixed with KY jelly on skin
Term
How do amphibs secrete ammonia?
Definition
-gills
-skin
-primitive kidneys
Term
Which amphibs are viviparous? Which are oviparous?
Definition
Viviparous (live birth): some salamanders
Oviparous (lay eggs, then fertilize): most
Term
Describe amphibian lungs:
Definition
simple air sac- intercostal and limb muscles pull chest up and out to breathe
Term
Factors to keep in mind when choosing a reptile for a pet:
Definition
-size
-longevity
-husbandry (diet, enclosure, temp, humidity/water req's)
-temperament
Term
Name some species that people buy as cute little babies, not realizing they grow pretty big:
Definition
-iguanas
-Burmese python
-tortoises
Term
Name some long-living species:
Definition
turtles, tortoises, iguanas
Term
Most important factor in the care of an amphibian or reptile?
Definition
HUSBANDRY!!!!
Term
Common ways that people screw up herp diets?
Definition
-iceberg lettuce
-vegetarian diets for non-veg species
Term
Species that needs dripping water, not a bowl to drink from?
Definition
chameleons
Term
For herps, any sort or amount of handling = ____.
Definition
stress
Term
The PP featured pics of bite wounds from what species?
Definition
tegu
Term
Term for shedding and difficulty shedding?
Definition
ecdysis / dysecdysis
Term
Describe the differences in how the following animals shed:
-amphibians
-chelonians
-snakes
Definition
--Amphibs: gyrate to shed pieces
--Chelonians: shed small pieces
--Snakes: should shed 1 whole piece, including spectacle
Term
What is the term for a scale that covers the eye of a snake? Why is it important to know that this exists?
Definition
spectacle- must make sure spectacle is included in the shed
Term
How to hydrate a herp and prevent dysecdysis?
Definition
soak in warm water for 30min each day
Term
Describe how a reptile's appearance and demeanor changes before a shed:
Definition
-body turns a dull color
-opaque eyes (spectacle)
-really cranky, inactive
Term
What should an owner do if their pet is shedding?
Definition
leave it alone!!!!! monitor for dysecdysis
Term
Problems arising from retained shed:
Definition
-dead skin dries and constricts, can have tourniquet effect if on appendages
Term
What should the owner do with the shed skin from its pet?
Definition
it's okay to leave it in the tank; eating shed is beneficial to animal
Term
Chelonia
Definition
turtles and tortoises
Term
Life span of chelonians?
Definition
up to 100yrs
Term
Type of chelonian that can weigh up to 200lbs?
Definition
African spur-thighed tortoise
Term
Only tortoise group native to the US?
Definition
gopher desert tortoise
-endangered, protected by law
Term
Tortoise vs Turtle vs Terrepin
Definition
Tortoise: terrestrial
Turtle: aquatic or semi-aquatic
Terrepin: hard-shelled turtle in brackish water
Term
Common chelonian pet that is technically mis-named in the US?
Definition
box turtle - really a tortoise
Term
Difference in the carapace of a soft-shell turtle VS sea turtle?
Definition
soft-shell: just skin on the carapace
sea turtle: cartilage with tiny bones called scutes
Term
The carapace of a chelonian consists of about how many bones? How many in the plastron?
Definition
carapace: 50- including the nuchal bone
plastron: 9
Term
What feature of chelonian anatomy is helpful in identifying the species?
Definition
scutes
Term
Term for the pointy part of a chelonian mouth that sometimes needs to be trimmed?
Definition
beak
Term
A chelonian shell consists of two parts. What are they called?
Definition
carapace (upper)
plastron (lower)
Term
How is a chelonian's trachea different from that of a mammal?
Definition
-trachea is short and bifurcates
-ETT doesn't go in very far
Term
What are the unique ways an aquatic chelonian can exchange O2?
Definition
-oral and cloacal mucosa
-soft-shells: through skin
Term
Chelonian waste consists of:
Definition
Aquatic spp: urea and ammonia (NH3)
everyone else: uric acid
Term
Sexual dimorphism of chelonians:
Definition
-males have longer/larger tail
-males have concave plastron
-aquatic: males have long front nails
Term
Notes on the chelonian penis:
Definition
-large & dark penis, fans out
-not used for urination
-can prolapse; Tx= amputation
Term
How can the **housing** of a pet chelonian predispose it to egg-binding?
Definition
-very picky about where to lay eggs
-may desire different substrate
Term
Tips on getting a chelonian out of its shell:
Definition
-poke butt, front legs come out usually
-place in shallow water
-grasp head behind mandible once it's out
Term
What might a chelonian do to aid respiration?
Definition
pump its legs
Term
Notes on chelonian lungs:
Definition
-saccular lungs
-attached to carapace
-air escapes when turtle brings in legs/head = hiss
-no diaphragm > pump limbs
Term
What type of chelonian has a hinged plastron?
Definition
box turtle
Term
Venomous lizards:
Definition
Mexican Beaded Lizard
Gila monster
Term
Group that contains lizards and snakes? Sub-order containing just lizards?
Definition
Squamata
-lizards:Sauria
Term
What lizard has surpassed the green iguana in popularity? Why might this be?
Definition
Bearded dragon- good temperament, smaller size
Term
What type of lizard did Eileen call a "lil dino"? (hint: fat, spiky tails)
Definition
Uromastyx
Term
Type of lizard that can weigh up to 150#?
Definition
Komodo dragon
Term
The Komodo dragon is a type of ____.
Definition
monitor
Term
Type of gecko that makes a very distinctive sound, giving it its name?
Definition
Tokay
Term
Are Komodo dragons venomous?
Definition
-disputed; may just kill with tons of bacteria
Term
Type of lizard that is can be aggressive and not necessarily a good pet? (hint: Sharon Stone's husband was bit by one)
Definition
monitors
Term
Life span of the iguana?
Definition
~15yrs
Term
How big is an iguana's tail in relation to the body length?
Definition
tail is 2-3x as long
Term
Can iguanas change colors?
Definition
-many can, but not of own volition
-change with age, stress, illness
Term
How do the pupils differ in nocturnal vs diurnal iguanas?
Definition
nocturnal: vertical pupil
diurnal: round pupil
Term
Characteristics of an iguana's eye:
Definition
-movable eyelids
-nictitating membranes
Term
Can iguanas regrow dropped tails?
Definition
they may try to, but it usually looks abnormal
Term
Term for when a lizard drops its tail in self defense?
Definition
autotomy
Term
Iguanas can be arboreal or...
Definition
terrestrial, burrowing, aquatic
Term
Name the crests on the iguana:
Definition
nuchal, dorsal, caudal
Term
Special feature of the iguana neck:
Definition
dewlap
Term
Special feature of the iguana face:
Definition
sub-tympanic scale
Term
Method of iguana restraint that is not recommended?
Definition
-arm under body, fingers around head (not rec'd bc tail)
Term
Most lizards have a __-chambered heart. What are the exceptions?
Definition
most: 3 chambered
alligator/croc: valve allows mixing of oxygenated/un-oxygenated blood for lower metabolic state (submersion)
Term
What herps what a cardiac shunt? Why do they have this?
Definition
-lizards
-diverts blood across heart to bypass pulmonary circulation
-they only need intermittant breathing (some can hold breath for 24hr)
Term
Why are reptiles hard to monitor during Sx?
Definition
-intermittant breathing
Term
renal portal system
Definition
-reptiles have it
-blood from caudal body goes to kidneys before the heart
-give injections in cranial body (even though caudal injections don't destroy kidneys)
Term
How can paraphimosis occur in a lizard?
Definition
-forced probing to sex
-after mating
-straining to defecate
Term
What are a lizard's femoral pores?
Definition
pores for scent glands; used to think they were useful for sexing but they're not
Term
What type of reptiles have hemipenes?
Definition
lizards, snakes
Term
Reptile waste consists of:
Definition
uric acid
Term
Are lizards oviparous or viviparous?
Definition
oviparous - shell gland= oviduct
Term
How to sex a lizard?
Definition
-metal probe in cloaca, directed caudally
-females: probe goes in shallowly (1-2 scales)
-males: probe goes much farther
-not recommended bc can cause paraphimosis
Term
Name of the sub-order containing snakes?
Definition
Serpentes
Term
Name the 4 different families of snakes:
Definition
-Boas
-Pythons
-Vipers (Viperids) eg rattlesnake - all venomous
-Elapids eg cobra, coral snake, adders - tropical and venomous
Term
What type of snake causes hypersensitivity reactions, meaning that the person has a stronger allergic reaction with each exposure?
Definition
Elapids
Term
"hot species" of snakes
Definition
Elapids
Term
Boas are exclusively found where?
Definition
New World (S/C/N America)
Term
Avg length of boas?
Definition
up to 8 ft
Term
Vipers are found where?
Definition
all over world except isolated islands
Term
Pythons are found where?
Definition
Africa, Asia, Australia
Term
What type of python can be 20+ft long?
Definition
reticulated pythons
Term
Special heart feature of snakes?
Definition
-intracardiac shunting: hold breath, blood bypasses lungs; allows for ingestion of large prey
Term
Important thing to know about snake respiratory system:
Definition
only R lung is functional! L is small and useless
Term
Describe the ventilation system of snakes:
Definition
negative pressure ventilation
-intercostals expand ribs along whole body
-pressure drops, sucks air into lung sac
Term
Special sensory organs of snakes:
Definition
-pit organs (pythons/boas)
-Jacobson's organ
Term
Do snakes have ears?
Definition
-no external ear
-can hear via vibrations
-arboreal spp can hear birds fly by
Term
Describe snake eyes:
Definition
-no eyelid
-no nictitating membrane
-spectacle
-Harderian gland keeps eye moist
Term
Can snakes replace lost fangs?
Definition
yes
Term
Snake waste consists of:
Definition
uric acid
Term
Snakes have ___, which are vestigial remnants of legs. What is their purpose?
Definition
-spurs
-stimulation in copulation; keeps 2 cloaca together
Term
Reproductive style of snakes?
Definition
-70% oviparous
-rest ovoviviparous
Term
Notes on handling/restraint of snakes:
Definition
-support whole body
-bag = great transport
-snake hooks can damage snake; really only used for venomous ones
-if handling venomous ones, must know spp to know what antivenom is needed
Term
Tips on auscultating heart:
Definition
-damp paper towel b/t body and stetho
Term
Notes on general reptilian PE:
Definition
-weigth in grams
-overall condition
-eyes/nares
-tympanic membrane
-auscult if possible
-respirations
Term
How to document turtle growth?
Definition
-measure shell circumference
-does turtle fit shell? edematous?
Term
What to check on a snake PE:
Definition
-muscle tone, motility
-measure snout to vent
-redness, discharges?
-righting reflex (place upside-down)
-moist buccal cavity?
Term
Term for snake teeth that can shed and regrow?
Definition
polyphyodontic
Term
IPPV
Definition
Intermittant Positive Pressure Ventilation
Term
Notes on reptile anaesthesia:
Definition
-injectable
-intubation
-inhalant anaesthesia? they hold breath
-IPPV @4-8/bpm
-dosing varies wildly
-slow metab = slow recovery
Term
Specific anesthetic drugs that may be used:
Definition
Telazol, Ace, Ketamine, Metetomidine
Term
What stimulates respiration in mammals? What about reptiles?
Definition
mammals: increased CO2 stimulates resps
reptiles: decreased O2 stimulates resps
Term
Notes on recovering a reptilian patient:
Definition
-turn off O2, maybe Ambu-bag
-heat, light
-hard to monitor
Term
Name the different venipuncture sites for the following:
-iguana
-turtle
-snakes
Definition
IGUANA
-jugular
-tail vein (great)
-axillary plexus

TURTLE
-jugular
-subcarapacial sinus

SNAKES
-tail vein (hard!)
-cardiocentesis (if you realllly need blood)
Term
Injection sites in reptiles:
Definition
-IM
-Intracoelomic (Ice)
-Prefemoral fossa (can do fluids this way)
-SQ (difficult- small amounts down body)
Term
Reptile Ringers
Definition
equal parts dextrose, saline, LRS
Term
Aside from lateral, what type of rad should one take of turtles?
Definition
"skyline view" - see lungs; esp if HBC / attacked by dog
Term
Fecal collection in reptiles:
Definition
-they defecate infrequently
-warm water bath
-colonic wash
-fecal float
-direct smear
Term
What microbes may you find in a reptile fecal?
Definition
-amoebas, protozoa, flagellates (normal vs patho?)
-Kalicephalus (intestinal hook; anemia in snakes)
-Nyctotherus (normal Chelonian flora)
Term
Normal chelonian flora species?
Definition
Nyctotherus
Term
Intestinal hook that can cause anemia in snakes?
Definition
Kalicephalus
Term
Types of heaters for reptile tank? Which is rec'd?
Definition
-under-tank heater
-"hot rocks"
-REC'D: ceramic heat emitter
Term
When heating a tank, it is important to remember that reptiles in captivity behave differently from those in the wild, in that they:
Definition
will not move away from excessive heat- will get burned
Term
Components of a basic non-aquatic tank:
Definition
-basking light
-UV light
-hide box w/sphagnum moss
-food away from heat source
-2 thermometers (on hot and cool side)
Term
Easiest/cleanest substrate:
Definition
newspaper or astroturf
Term
Components of a basic aquatic tank:
Definition
-basking light
-UV light
-3 thermometers (hot/cool side, water therm-cover cord to protect f/bites)
-basking area out of water
-floating food pad
-water filter (most expensive you can buy)
Term
How big of a tank do you need for a snake?
Definition
perimeter should be greater or equal to snake length
Term
What does POTZ stand for? What is it usually?
Definition
Preferred Optimum Temperature Zone - usu. 75-99F
Term
Ectotherms are sometimes called ____ because their body temp is unstable.
Definition
poikilotherms
Term
Turtles are sometimes called ____ because they "seek the sun."
Definition
heliotherms
Term
Temperature has a direct effect on ___.
Definition
metabolism
Term
What happens if a reptile is too cold?
Definition
-anorectic, poor digestion, poor immunity
Term
3 important components to lighting in a reptile tank:
Definition
-photoperiod (try to mimic sun)
-light quality (windows filter UV)
-light intensity (in tank outside = fry; if free, metab ^ = run off)
Term
Why is UVB important?
Definition
it activates vitamin D3 (cholecalciferol) which aids in calcium absorption
Term
New type of lighting:
Definition
-mercury halite
-extreme levels output
-cancer? *hyper*calcemia? we don't know!
Term
What type of UV light must you get for a reptile tank? What are some important things to note about it?
Definition
-whole spectrum UV lights
-really expensive, but critical
-MBD (metabolic bone Dz) without it
-neg: doesn't turn off light if UVB gone
-switch at least every 6mo
Term
Water/Humidity notes:
Definition
-50-70%, depends on spp
-sphagnum moss or sponge helps retain moisture
-soak in tepid water regularly
Term
Quarantine new reptiles for how long?
Definition
-at least 3mo, 6mo better
-monitor appetite, fecal, behavior
Term
Particulate substrates can result in:
Definition
-caseous abscesses, stomatitis, impactions (esp Calcisand)
Term
Examples of bad substrate:
Definition
-sand
-gravel
-walnut
-wood shaving
-Calcisand
Term
Examples of acceptable substrate/flooring:
Definition
-cage carpeting
-astroturf
-newspaper
-shelf paper
Term
Juvenile reptiles should be fed __x week. What about older ones?
Definition
Juvies: 2x week
Older: less frequent, depends on species
Term
Prey should be what size in relation to the reptile?
Definition
no biggger than the biggest part of the reptile's body
Term
More colorful veggies contain more of what nutrient?
Definition
-beta-carotene, a precursor to vitamin A
Term
Notes on live prey vs killed prey?
Definition
LIVE
-stress to prey
-bites to predator

DEAD
-killed humanely?
-freshly killed or frozen?
-frozen how long? - vit E deficiency
Term
Why is it bad to feed only pinkies?
Definition
less calcium
Term
Important notes on feeding your pet insects:
Definition
-feed the insects
-dust or gut-load with calcium
-don't feed pet the dead/sick insects
Term
Vitamin E deficiency can cause what? What may cause this?
Definition
steatitis: inflammation of fatty tissue
-hardens, calcifies; not reversible
-eg snakes fed obese rats
Term
What to do if a snake is not eating?
Definition
-heat up prey
-forceps to move prey around
-is snake pre-shed?
Term
Signs of MBD:
Definition
-bilateral swelling of mandibles
-muscles become fibrous, appendages plump up
-animals feel squishy, turtles soft
Term
When might tail amputation be required?
Definition
severe cases of MBD - spondylosis
Term
Two possibly causes of petechiae?
Definition
-heat
-cleanliness
Term
Reptile health conditions:
Definition
-MBD
-Anorexia
-Rostral abrasion
-Abscesses
-Burns
-Paraphimosis/cloacal prolapse
-Gout
-Stomatitis
Term
What is gout?
Definition
excess uric acid in joints
Term
Stomatitis is also called ______ in snakes and lizards. What causes this?
Definition
mouth rot; husbandry and stress
Term
What can cause paraphimosis or cloacal prolapse?
Definition
-probing
-manual eversion
-post-copulation
-strain from parasite load
Term
Tx for gout?
Definition
not really a Tx; fluids, diuretics
Term
Shell deformities of turtles:
Definition
-pyramiding
-shell rot
-Septicemic Cutaneous Ulcerative Dz (SCUD)
-trauma (HBC/dog)
Term
pyramiding
Definition
-type of MBD
-caused by ^protein, ^fat, low humidity
Term
shell rot
Definition
-abnormal scutes, soft shell
-caused by low calcium, low water temp, lack of cleanliness
Term
Shell Fxs can be fixed with:
Definition
-dentistry materials like epoxy, resin
-mesh, screws
Term
How to Tx shell rot?
Definition
Abx
Term
Aquatic chelonions with respiratory problems may show what CS?
Definition
lose buoyancy
Term
Vit A deficiency in turtles can cause:
Definition
-blepharitis, nasal discharge, dyspnea, aural abscess
Term
Health conditions of snakes:
Definition
-regurgitation
-vesicular dermatitis aka "blister Dz"
-pneumonia
-parasite/mites
Term
vesicular dermatitis
Definition
"blister Dz"
-poor hygiene, high humidity
Term
Pneumonia is common in what reptile? And is it usually caused by Gm- or Gm+?
Definition
-snakes
-Gm-
Term
CS of pneumonia in snakes:
Definition
-bubbling from nares, glottis
-oral petechiae
-cyanotic
Term
Snakes may be overloaded with what sort of parasite?
Definition
trepanosomes
Term
What can cause regurgitation in snakes?
Definition
-stress
-handling after meal
-prey too large
-prey too cold
Term
What can cause regurgitation in snakes?
Definition
-stress
-handling after meal
-prey too large
-prey too cold
Term
IBD
Definition
Inclusion Body Dz (snakes)
-viral - poss. from mites?
-"star gazing"
-head tremors, disorientation
-lose righting reflex
-only occurs in boas
-no Tx, fatal
Term
Paramyxovirus
Definition
-mostly vipers
-severe Dz, poor prognosis
-respiratory Dz
Term
Cryptosporidia
Definition
-protozoan
-regurgitation
-weight loss
-midline swelling (lives in SI)
-can't absorb food well
-commonly tested for (acid fast + but small!)
-in lizards, no Tx, causes gastritis
Term
Salmonella
Definition
-bacteria w/potential to cause severe Dz
-found in raw meat, apparently healthy reptiles, and people
-no test can guarantee that pet is free of it
-no cure for Salmonella-related infection in reptile
Term
CDC reports human deaths resulting from reptile-related exposure to ____.
Definition
Salmonella
Term
Term for hibernation in reptiles?
Definition
brumation
Term
Brumation impacts:
Definition
-life expectancy
-hormonal activity
-repro hormone stimulation/synchronization
Term
What reptiles undergo brumation?
Definition
any that live in an area with a cold period / winter
Term
Do beardies go through brumation?
Definition
somewhat; they may stop eating
Term
Signs of imminent hibernation:
Definition
-declining appetite
-declining activity
-burrowing
-hiding
Term
How to perform brumation:
Definition
-CAREFULLY!!!
-gradually with lots of monitoring
-refridgerate reptile
-pull out every few weeks to weigh, soak; then put back
-proper humidity, ventilation; dark/cool enviro
-balanced diet w/vitamin supps
-pull food 10d prior
-remove heat source for week
-temp: 50-55F for 3-4mo
Term
torpor
Definition
somewhat like hibernation, may help immune system (like a "reboot")
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