Destruction of the Suprachiasmatic Nuclei (SCN) of Hamsters Results in

question 67

Multiple Choice

Destruction of the suprachiasmatic nuclei (SCN) of hamsters results in

• A) entrainment.
• B) long daily cycles.
• C) short daily cycles.
• D) arrhythmia.
• E) death.

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Definitions:

Spiracles

External respiratory openings found in some animals, such as insects and some amphibians, that allow air to enter and exit the trachea.

Tracheae

Tubes in the respiratory system that conduct air to and from the lungs.

Book Lungs

Respiratory organs found in certain arachnids, such as spiders and scorpions, consisting of stacked leaf-like structures used for gas exchange.

Malpighian Tubules

Excretory structures in insects and some arthropods that remove metabolic wastes from the body into the digestive tract for excretion.