As She Runs a Race, Aggie's Heart Starts Beating Faster

question 36

Multiple Choice

As she runs a race, Aggie's heart starts beating faster to help her body keep up with its increasing need for oxygen. Aggie can largely thank her _______ for this change.

• A) forebrain
• B) midbrain
• C) hindbrain
• D) hippocampus

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Definitions:

Epithelial

Pertaining to the epithelium, a layer of cells covering the body surfaces or lining cavities.

Reticular Connective Tissue

A type of connective tissue that contains a network of reticular fibers, supporting the framework of organs like the spleen and lymph nodes.

Dense Regular Connective Tissue

Connective tissue characterized by tightly packed parallel collagen fibers, providing strength and resistance to stretching in one direction, common in tendons and ligaments.

Elastic Cartilage

A type of cartilage that contains elastic fibers, making it flexible and found in structures like the external ear.