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26 Cards in this Set
- Front
- Back
Vertebrae |
Segments of bone or some other hard substance that are arranged into a backbone |
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Notochord |
A rod of tough, flexible material that runs the length of the creature's body, providing the majority of its support |
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Endoskeleton |
A skeleton on the inside of the creature's body, typically composed of bone or cartilage |
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Bone marrow |
The soft tissue inside the bone that produces blood cells |
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Axial skeleton |
The portion of the skeleton that supports and protects the head, neck, and trunk |
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Appendicular skeleton |
The portion of the skeleton that attaches to the axial skeleton and has the limbs attached to it |
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Closed circulatory system |
A circulatory system in which the oxygen carrying blood cells never leave the blood vessels |
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Arteries |
Blood vessels that carry blood away from the heart |
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Capillaries |
Tiny, thin-walled blood vessels that allow the exchange of gases and nutrients between the blood and the cells of the body |
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Veins |
Blood vessels that carry blood back to the heart |
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Olfactory lobes |
The lobes of the brain that receive signals from The receptors in the nose |
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Cerebrum |
The lobes of the brain that integrate sensory information and coordinate the creature's response to that information |
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Optic lobes |
The lobes of the brain that receives signals from the receptors in the eyes |
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Cerebellum |
The lobe that controls involuntary actions and refines muscle movement |
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Medulla oblongata |
The lobes that coordinate vital functions, such as those of the circulatory and respiratory systems, and transport signals from the brain to the spinal cord |
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Internal fertilization |
The process by which the male places sperm inside the female's body, where the eggs are fertilized |
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External fertilization |
The process by which the female lays eggs and the male fertilizes them once they are outside of the female |
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Oviparous development |
Development that occurs in an egg that is hatched outside the female's body |
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Ovoviviparous development |
Development that occurs in an egg that is hatched inside the female's body |
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Viviparous development |
Development that occurs inside the female, allowing the offspring to gain nutrients and vital substances from the mother through a placenta |
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Anadromous |
A life cycle in which creatures are hatched in fresh water, migrate to salt water as adults, and then go back to fresh water in order to reproduce |
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Bile |
A mixture of salts and phospholipids that aids in the breakdown of fat |
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Atrium |
A heart chamber that receives blood |
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Ventricle |
A heart chamber from which blood is pumped out |
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Ectothermic |
Lacking an internal mechanism for regulating body heat |
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Hibernation |
A state of extremely low metabolism and respiration, accompanied by lower than normal body temperatures |