The Areas Around the Third Ventricle Can Detect Chemicals Circulating

question 190

Multiple Choice

The areas around the third ventricle can detect chemicals circulating in the blood because:

• A) these areas are not protected by a blood-brain barrier.
• B) these areas have low concentrations of solutes themselves.
• C) there is so much more blood here than anywhere else in the brain.
• D) these cells maintain a higher internal temperature than the rest of the body.

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Definitions:

Musculocutaneous Nerve

The musculocutaneous nerve is a major peripheral nerve of the upper limb, primarily responsible for the innervation of the biceps muscle and sensation to the forearm.

Biceps Brachii

A muscle located in the upper arm, responsible for flexing the elbow and rotating the forearm.

Deltoid

A large, triangular muscle covering the shoulder joint, involved in lifting and rotating the arm.

Teres Minor

One of the four rotator cuff muscles in the shoulder, aiding in rotation and stabilization of the humerus.