Animals With Spines: Phylum Chordata Flashcards

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1
Q

What is a notochord?

A

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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2
Q

What is an endoskeleton?

A

A skeleton on the inside of a creature’s body, typically composed of bone or cartilage.

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3
Q

What is bone marrow?

A

A soft tissue inside the bone that produces blood cells.

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4
Q

What is an what is an axial skeleton?

A

The portion of the skeleton that supports and protects the head, neck, and trunk.

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5
Q

What is in appendicular skeleton?

A

The portion of the skeleton that attaches to the axial skeleton and has the limbs attached to it.

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6
Q

What is a closed circulatory system?

A

A circulatory system in which the oxygen-carrying blood never leave the blood vessels.

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7
Q

What are arteries?

A

Blood vessels that carry blood away from the heart.

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8
Q

What are capillaries?

A

Tiny, thin walled blood vessels that allow the exchange of gases and nutrients between the blood in the cells of the body.

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9
Q

What are veins?

A

Blood vessels that carry blood back to the heart.

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10
Q

What are olfactory lobes?

A

The lobes of the brain that receives signals from the receptors in the nose.

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11
Q

What is a Cerebrum?

A

The lobes of the brain that integrates sensory information to coordinate the creature’s response to that information.

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12
Q

What are the Optic lobes?

A

The lobes of the brain that receives signals from receptors in the eyes.

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13
Q

What is the Cerebellum?

A

The lobe that controls involuntary actions and refines muscle movement.

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14
Q

What is the Medela oblongata?

A

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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15
Q

What is a vertebrae?

A

Segments of bone or some other hard substance that are arranged into a backbone.

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16
Q

What is Oviparous development?

A

Development that occurs in an egg that is hatched outside the female’s body.

17
Q

What is Ovoviviparous development?

A

Development that occurs in an egg that is hatched inside the female’s body.

18
Q

What is Viviparous development?

A

Development that occurs inside the female, allowing the offspring to gain nutrients and vital substances from the mother through a placenta.

19
Q

What does Anadromous mean?

A

A life cycle in which creatures are hatched in fresh water, migrate to salt water as adults, and then go back go fresh water in order to reproduce.

20
Q

What is Bile?

A

A mixture of salts and phospholipids that aids in the breakdown of fat.

21
Q

What is an Atrium?

A

A heart chamber that receives blood.

22
Q

What is a Ventricle?

A

A heart chamber from which blood is pumped out.

23
Q

What does Ectothermic mean?

A

Lacking an internal mechanism for regulation body heat.