In a Hypothetical Experiment, the Blood Flow Between Two Dogs

question 46

Multiple Choice

In a hypothetical experiment, the blood flow between two dogs is joined and one dog is stressed so that its heart rate goes up rapidly. What will happen to the heart rate of the second dog?

• A) It will remain calm because the heart rate is determined intrinsically in each heart.
• B) Heart rate will go up due to an increase in epinephrine and norepinephrine in the blood.
• C) Heart rate will go up due to signals from the first dog's SA node.
• D) It will remain calm because there is no connection of the dogs' sympathetic nervous systems.
• E) The heart rate of the second dog will decrease to compensate for the speed of the first dog's heart.

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Definitions:

Spinal Nerve Plexuses

Networks of intersecting spinal nerves that distribute and collect nerve signals from specific regions of the body.

Anterior Roots

The front part of the spinal nerve that carries motor output from the central nervous system to the peripheral organs and muscles.

Motor Neurons

Neurons that transmit impulses from the central nervous system to muscles or glands, inducing action.

Tibial Nerve

A major peripheral nerve of the lower leg that innervates the muscles of the calf and foot, as well as the skin of the lower leg.