Match the Following Structures to Their Descriptions

question 72

Multiple Choice

Match the following structures to their descriptions.
-tough, inelastic outer meningeal layer

• A)arachnoid villi
• B)subarachnoid space
• C)choroid plexuses
• D)dural sinuses
• E)dura mater

---

Definitions:

Neurotransmitter

Chemical substances released by neurons to transmit signals across a synapse to another cell, either exciting or inhibiting their functions.

Presynaptic Terminal

The part of a neuron that releases neurotransmitters into the synaptic cleft, initiating a response in another neuron.

Intracellular Mediator

Molecules within cells that transmit signals from a receptor to a target, often leading to a cellular response.

Membrane-bound Receptor Model

A concept describing receptors located on the cell membrane that bind to specific molecules outside the cell, initiating a cellular response.