A certain type of cell in the nervous system transmits electrical impulses from the central nervous system to effector organs (such as muscles or glands) to initiate a response. 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. Retina
2. Pupil
3. Ciliary muscles
4. Sclera

Functions:

• A: The central opening that allows light to enter the eye.
• B: Contains specialized photoreceptor cells (rods and cones) to detect light.
• C: The tough, white outer fibrous layer that protects the inner structures of the eye.
• D: Contracts or relaxes to alter the curvature of the lens for focusing.

Rhodopsin is a light-sensitive protein found in the retina. Which chemical building blocks are linked together to synthesize this protein?

Visual processing and conscious integration of images occur in the largest part of the human brain. Name this region of the brain.