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?

A person with an injury in the upper cervical region of the spinal cord would be unable to move which limbs?

Norepinephrine (NE) is released from:

In the picture, the arrow is pointing to which structure? spinal cord.png

At your yearly physical, the doctor tests your reflexes with a small hammer.  When she taps the hammer to your knee, your quadricep muscles lengthen which causes your quadricep muscle to contract.  Which reflex was activated during this action?

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