ANATOMY OF SEA TURTLES - School of Veterinary … OF SEA TURTLES Jeanette Wyneken, PhD Florida...
Transcript of ANATOMY OF SEA TURTLES - School of Veterinary … OF SEA TURTLES Jeanette Wyneken, PhD Florida...
ANATOMY OF SEA ANATOMY OF SEA TURTLESTURTLES
Jeanette Wyneken, PhDJeanette Wyneken, PhDFlorida Atlantic UniversityFlorida Atlantic University
External Parts, Key CharacteristicsExternal Parts, Key Characteristics
Key CharacteristicsKey Characteristics
Species Species IdentificationIdentification
PreocularScale
Natator depressus
From D.R. Mader 2005 Reptile Medicine and Surgery, 2nd Ed.
Sea Turtle Species of the WorldSea Turtle Species of the World
Photo: Matthew Godfrey
Green Turtle
Loggerhead Turtle
Hawksbill Turtle
Flatback Turtle
Leatherback Turtle
Sea Turtle Species of the WorldSea Turtle Species of the World
Photo: Matthew Godfrey
Green Turtle
Loggerhead Turtle
Hawksbill Turtle
Flatback Turtle
Leatherback Turtle
Characteristics – ridley
Characteristics – ridley
Identified by having more than 5 costal scutes
Characteristics – ridleyDistinct Infra-marginal pores which lead to Rathke’sSimilar glands in freshwater turtles produces scent
The Shell & SkeletonThe Shell & Skeleton
The Shell & SkeletonThe Shell & Skeleton
How to take at turtle apart
Who, What, Where, WhenWho, What, Where, When
Inside the Inside the Inside the Inside the Carapace PlastronCarapace Plastron
Heart / Heart / Ext.JugularExt.Jugular
InsideInside andand InternalInternal LandmarksLandmarks
InsideInside andand InternalInternal LandmarksLandmarks
Basic Gastrointestinal AnatomyBasic Gastrointestinal Anatomy
Oral Cavity
Large SmallIntestine Intestine
Cloaca
Alimentary Canal: esophagus, stomach, intestines & cloacaAlimentary Canal: esophagus, stomach, intestines & cloaca
Oral Cavity (Oral Cavity (BuccalBuccal Cavity)Cavity)
Mouth: Prey capture and transport, also display.
Teeth: No!
Rhamphotheca or beak: cutting & crushing, also aggression & defense
Tongue: Taste food manipulation
RhamphothecaRhamphotheca =Beak=BeakRhamphotheca (or beak) varieties:•Cusped,thick & crushing,•Serrated and clipping, •Thin and slicing•Species-specific
D.R. Mader Photo
Minimally mobile tongue compared with tortoises
Jaw & Jaw Joint Jaw & Jaw Joint
Basic AnatomyBasic Anatomy
Oral Cavity
Large SmallIntestine Intestine
Cloaca
Alimentary Canal: esophagus, stomach, intestines & cloacaAlimentary Canal: esophagus, stomach, intestines & cloaca
EsophagusEsophagus-- tube to the stomachtube to the stomach
EsophagusEsophagus-- tube to the stomachtube to the stomach
EsophagusEsophagus
Esophagus is similar in most sea turtles; muscular wall with papillae lining lumen.
Intestines Intestines and glandsand glands
GIGI DiversityDiversity in Sea Turtlesin Sea Turtles
CloacalCloacal FormForm
Proctodeum Urodeum Coprodeum Rectum
CoprodeumUrodeumProctodeum
P U C RP U C R
Urinary bladderUrinary bladder
CloacalCloacal AnatomyAnatomy
P U C RP U C R
Gonadal Systems
ImmatureOvary Ovary Testis
Gonadal Systems
ImmatureOvary Maturing Ovary Testis
& Oviduct w/ eggs
Lungs & HeartLungs & Heart Lung Longitudinal SectionLung Longitudinal Section
Brain & Sense Organs
D.R. Mader photo
D.R. Mader photo