Some Crocodiles and Turtles Have an Exceptional Ability to Divert

question 38

Multiple Choice

Some crocodiles and turtles have an exceptional ability to divert blood flow through the heart when they are diving and no longer breathing and exchanging gases. Which of the following most likely occurs when these animals dive?

• A) Instead of flowing to the lungs, blood travels to the rest of the body to support bodily functions.
• B) Instead of flowing to the body, blood travels to the lungs to exchange gases.
• C) Instead of flowing to the capillaries, blood travels to alveoli to exchange gases.
• D) Blood flow ceases altogether since gases cannot be exchanged while diving.

---

Definitions:

Pons

A part of the brainstem that links the medulla oblongata and the thalamus, involved in the control of breathing, communication between different parts of the brain, and sensations such as hearing, taste, and balance.

Leg-Muscle Movements

Physical actions involving the muscles in the legs, which can include walking, running, jumping, or other forms of locomotion or exercise.

Psychoactive Drugs

Substances that affect the mind, mood, or other mental processes, often used for medicinal, recreational, or spiritual purposes.

Brain Neurotransmitters

Chemical messengers in the brain that transmit signals across synapses between neurons, influencing mood, thought, and behavior.