When levels of cortisol in the blood decrease, the hypothalamus increases its production of corticotropin releasing hormone (CRH) and the pituitary increases release of adrenocorticotropic hormone (ACTH).  This causes cortisol levels to increase.  Based on this, which of the following statements is true?

The Na+/K+ pump moves Na+ out of the cell and K+ into the cell

Ricardo is unable to feel a burning sensation on his hand, nor is he able to pull his hand away.  Based on this, Rick has problems with _______________________ pathways involving his arm

Which of these happens last during skeletal muscle contraction?

Acetylcholine (ACh) is an andrenergic neurotransmitter

Sending the signals to skeletal muscles telling them to contract is the role of which branch of the PNS?

Only polysynaptic reflex arcs include an interneuron

As the stability of a joint increases, its flexibility decreases.

Mesenchymal cells are capable of becoming osteoblasts.

Which epithelial tissue would be better at protecting underlying tissues?