Birds/reptiles Flashcards
Pneumatic bones
Hollow/ air filled bones
Extra bone in birds
Coracoid
Another name for a Keel
Sternum
Why is the keel laterally flattened
It increases surface area for the attachment of muscles
Where is the coracoid bone located
Lies between keel and shoulder joint
Function of the coracoid bone?
Counteracts flight muscles
Supports wings
Why do birds have less joints
To provide a strong base for flight muscle attachment
How many cervical vertebrae can birds have
Approx 25
Pygostyle?
Bird tail
The glands of a bird that secretions aid in waterproofing feathers
Preen gland/uropygial
Quadrate bone
Bone located by mandible
Allows the jaw to open wider
Craniofacial hinge function
Increases the motility during feeding
Fused appendicular skeletal bones in birds
Tibiotarsus
Tarsometatarsus
How many toes do most birds have
3 toes pointing forward
1 toe pointing backwards
How many toes do parots have
2 forwards
2 backwards
Alula
‘bastard wing’ is made up of digit I.
controlling take-off and landing
Basilic vein
ulnar vein
site for venepuncture
Caeca
Blind-ended section of the large intestine where bacterial digestion
occurs
Choana
Cleft in the hard palate
connect the oral and
nasal cavities
Found in some birds
Name for the 1 body cavity in birds
Coelom
Columella
Single middle ear bone that transmits sound to the inner ear
Contour feathers
Feathers of the wings and outer surface of the body
Crop
Its the enlargement of the oesophagus and serves as a storage place for food
Digital flexor tendon function
responsible for the perching reflex
Filoplume
Lie close to the body
Break up, creating dust that absorbs sweat and dirt
Gizzard
AKA (ventriculus)
Muscular part of the
stomach where mechanical digestion occurs
Isthmus
Where the inner and outer shell membranes are formed
Magnum
most glandular part of the oviduct where the
majority of albumen is added
Pectoral
Flight muscle responsible for down stroke
Pectoral and brachial
arteries
Supply blood to flight muscles and wings
Phalus
Bird penis
Pinioning
Method of preventing flight by cutting the end of the wing
(chick is between 4-10 days old)
Primaries
Flight feathers that attach to digit 3
(THRUST)
Proventriculus
First section of the stomach lined with glands that secrete pepsin,
hydrochloric acid and mucus
Rachis
Central shaft of the feather which is filled with blood capillaries
Salt gland
Located above the eye in some marine birds which balances the salt
Sclerotic ring
bones around the eye
Secondaries
flight feathers
Shell gland
where the shell membrane becomes calcified
(15hrs)
Syrinx
Vocal organ in birds
Reptiles Renal portal system
Transports blood from the hind legs and tail directly to the kidneys
Acrodonts
reptile Teeth
Arboreal
tree climbing/dwelling species
Autotomy
Ability to shed their tail as a defence against
predators
Carapace
Domed upper part of a tortoise’s shell
Chelonia
Class of reptiles
Tortoises, terrapins and
turtles
Chromatophores
The cells that allow for reptiles to change their skin colour
Coelom
Thoraco-abdominal cavity, there is only one combined cavity
Coprodeum
First section of the cloaca where the faeces are collected
Crepuscular
Species of animal active during dawn and dusk
Diurnal
Species of animal active during the day
Ecdysis
Shedding of the skin
Ectothermic
Species of animals that obtain the heat they require from their
environment
Herpetology
The study of reptiles and amphibians
Jacobson’s organ
Vomeronasal organ.
Roof of mouth
part of the olfactory system
Lamellae
Overlapping scales arranged in layers found on the underside of
geckoes enabling them to grip on to smooth surfaces
Nuchal scute
Found on the anterior end of the carapace.
AKA cervical scute
Oviparous
animals that lay eggs
Ovoviviparous
Species of animals that hatch their eggs internally
Plastron
Flattish ventral part of a tortoise’s shell
Poikilothermic
Species of animals that have a body temperature that varies with the
environment around them
Proctodeum
Final section of the cloaca that acts as a collection chamber prior to
the elimination of waste
Scutes
Horny plates in the shell of tortoises
Sexually dimorphic
Species where visible differences in external features between males and females: colouration, shape etc
Spectacle
Transparent eyelid
Stomatitis
‘Mouth rot’