A certain type of cell in the nervous system detects external or internal environmental changes and transmits electrical impulses from sensory receptors to the central nervous system (CNS). What is the name of this type of neuron?

Compare how messages are sent by the nervous system and the endocrine system. Describe two differences in how they transmit or deliver messages.

Different parts of the eye perform different functions to facilitate vision. Match each eye part to its correct function:

Eye Parts:

1. Cornea
2. Iris
3. Suspensory ligaments
4. Fovea

Functions:

• A: Connects the ciliary body to the lens, transferring tension to adjust lens shape during accommodation.
• B: The transparent, curved anterior window of the eye that initially refracts incoming light.
• C: A pigmented muscular ring that contracts or relaxes to control the amount of light entering the eye.
• D: An area of the retina with an extremely high concentration of cone cells, providing maximum visual acuity.

The active transport of ions to maintain a neuron's resting potential relies on the sodium-potassium pump, which is a specialized transmembrane protein. Which chemical building blocks are polymerized to synthesize this pump?

The coordination of voluntary muscle movement, posture, and motor learning is controlled by a major region situated at the base of the brain. Name this region of the brain.