We Know That Nutrient Receptors Are Located Within the Intestines

question 74

Multiple Choice

We know that nutrient receptors are located within the intestines because

• A) injection of nutrients into the duodenum will induce eating.
• B) infusion of fatty acids into the duodenum increases the firing rate of afferent axons from the gut.
• C) infusion of amino acids into the stomach increases the firing rate of afferent axons from the gut.
• D) infusion of glucose into the duodenum increases the firing rate of afferent axons from the gut.
• E) eating is not altered by surgery that cuts the gut afferents.

---

Definitions:

O Proposition

In traditional logic, an O proposition is a type of categorical statement that asserts some S are not P, where S and P are the subject and predicate respectively.

Contrary

Opposite in nature, direction, or meaning; conflicting with each other.

Contraries

In the traditional square of opposition, a pair of categorical propositions that, in virtue of their logical form, could not both be true but could both be false (A and E).

Universal

Pertaining to or affecting the whole or applicable in all cases; general.