Norepinephrine (NE) is released from:

Which of the following structures protects the brain, but NOT the spinal cord?

The cerebrospinal fluid will move through which structure to drain into the dural venous sinuses?

Identify the muscle: Muscle 39.png

Identify the muscle: (The arrows are pointing to the same muscle in each picture) Muscle 22.1.png Muscle 22.2.png

Which meningeal layer is located closest to the brain?

Identify the structure: (The arrows are pointing to the same structure in each picture). The 2nd photo is a close-up view of the knee joint model. Joints 44.1.png Joints 44.2.png

Which of the following does NOT describe negative feedback?

Increased sympathetic innervation has what effect on blood vessels?

Which type of cell breaks down bones releasing calcium into the blood?