The Retina

question 226

Multiple Choice

The retina

• A)is the middle layer of the eye
• B)contains the photoreceptors
• C)becomes specialized anteriorly to form the cornea
• D)secretes the aqueous humor
• E)is not characterized by any of the above\

---

Definitions:

Electrolyte Balances

The levels of minerals in the body that have an electric charge, crucial for nerve and muscle function, hydration, blood pH, and other processes.

Sodium

A chemical element (symbol Na) that is highly reactive and essential for nerve and muscle function in the human body, commonly found in salt.

Kidney Tubules

The small tubes in the kidneys where reabsorption and secretion occur, playing a crucial role in the formation of urine.

Potassium

A chemical element with the symbol K and atomic number 19, essential for many bodily functions, including normal heart and muscle function.