Refer to the Figure Showing Feedback Information That Controls Breathing

question 242

Multiple Choice

Refer to the figure showing feedback information that controls breathing in humans. The nerves labeled 1 are _______; the structure labeled 2 senses the _______; and the nerve labeled 3 is _______.

• A) sensory; O₂ content of the blood; a sensory nerve that goes to the heart
• B) sensory; hydrogen ions in the cerebrospinal fluid; a motor nerve that stimulates the diaphragm to contract
• C) sensory; N₂ content of the blood; a motor nerve that innervates the intercostal muscles
• D) motor; O₂ content of the blood; a sensory nerve to the diaphragm
• E) motor; pH of the blood; the phrenic nerve

---

Definitions:

Scientific Knowledge

Knowledge that is based on scientific methods, principles, and empirical evidence.

Power Relations

The dynamics of control and influence among individuals or groups within any given society, highlighting how power is distributed and exercised.

Gramsci's Analysis

Refers to the work of Italian Marxist theorist Antonio Gramsci, particularly his theories on cultural hegemony and the role of intellectuals in society.

Capitalism

An economic model where capital goods are owned by individuals or corporations, with investments made based on personal choices, and where the pricing, creation, and distribution of products are primarily influenced by competitive forces in an unregulated market.