In the Bony Fish,all Heart Chambers Are Contractile Except the

question 42

Multiple Choice

In the bony fish,all heart chambers are contractile except the

• A)sinus venosus.
• B)atrium.
• C)ventricle.
• D)bulbus arteriosus.

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Definitions:

Spinal Cord

The cylindrical bundle of nerve fibers that runs from the brainstem down the spine and mediates nerve signals between the brain and the body.

Reflexes

Reflexes are involuntary and nearly instantaneous movements in response to a stimulus, serving as basic building blocks of behavior and survival mechanisms.

Peripheral Nervous System

A part of the nervous system that lies outside the brain and spinal cord, responsible for transmitting information to and from the central nervous system and the rest of the body.

Central Nervous System

The part of the nervous system consisting of the brain and spinal cord, responsible for processing and sending out information to and from the body.