Which Statement Regarding the Lobster Circulatory System Is False

question 55

Multiple Choice

Which statement regarding the lobster circulatory system is false?

• A) Hemolymph returns through holes in the heart called ostia.
• B) All vessels connected to the heart are arteries.
• C) The primary force that refills the heart is elastic rebound.
• D) There is a clear distinction between blood and interstitial fluid.

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Definitions:

Fibula

A thin, elongated bone situated on the outer aspect of the tibia, within the lower portion of the leg.

Clavicle

A long bone that serves as a strut between the shoulder blade and the sternum or breastbone, also known as the collarbone.

Radial Notch

A depression or groove on the ulna bone that articulates with the head of the radius to form part of the elbow joint.

Coracoid Process

A small hook-like structure on the lateral edge of the superior anterior portion of the scapula (shoulder blade) involved in muscle attachment.