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29 Cards in this Set

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Tetrapod
four-limbed vertebrates
Axial skeleton
consisting of skull, vertebral column, and rib cage
Appendicular skeleton
consisting of the pectoral and pelvic girdles and associated limbs
Sensory capsules
spaces for sensory organs in the skull
Nasal capsule
complex of nasal bones which house olfactory organs
Otic capsules
provide protection for the middle and inner ear
Occipital Condyles
allow the skull to pivot smoothly on the first vertebra
Atlas
first vertebra
Axis
second vertebra
Secondary palate
partition in higher tetrapods that divides the nasal passage from the oral cavity
Maxilla
upper jaw
Mandible
lower jaw
Temporal fenestra
holes in the temporal region of the skull which provide surface area for muscle attachment
Function of vertebral column
1) prodives a flexible protective covering for the spinal cord
2) supports the weight of the body's thoracic and abdominal cavities
3) provides surfaces for muscle attachment
Neural arch
space on dorsal surface of each vertebra where nerve cord passes
Intervertebral discs
allows articulation among centra and protect the bony surfaces from damaging each other
5 categories of vertebrae
1) cervical
2) thoracic
3) lumbar
4) sacral
5) caudal
Pectoral girdle
not directly attached to veretebral column;
scapula
humerus
ulna/radius
carpals
metacarpals
phalanges
Pelvic girdle
firmly fused to vertebral column which provides greater strength for propulsion;
pelvis
femur
tibia/fibula
tarsals
metatarsals
phalanges
Posterior spine
used for defense
Thoracic legs
5 pairs used for generating water currents and filter feeding
Post-abdominal claw
used to remove debris from under the carapace
Brood pouch
contains eggs which hatch inside the pouch and then emerge from the female
parthenogenesis
development of egg without fertlization by sperm
Ectothermic
heat comes from external sources
Endothermic
generate heat internally as a result of metabolism
Homeothermic
ability to thermoregulate
Poikilothermic
cannot thermoregulate; internal temperature fluctuates with environment
Q10
sensitivity of reaction to temperature;
= Rt/Rt-10