Draw the action potential that would be occurring at the SA node in humans. Indicate which ions are permeable, and direction of movement, during each part of action potential. Which channel is responsible for the unstable membrane potential?

Share an example of how an administrative healthcare professional may use knowledge of directional terms, planes, and regions of the human body in their position.

Explain the process of forward and reverse transport of fatty acids and cholesterol and the role of cholesterol in the regulation of the transcription of the LDL receptor gene. Your answer should describe the relevant apolipoproteins and receptors

What are the growth conditions and mechanisms that regulate the production and activity of glutamine synthetase.

An infant receives her first dose of an oral vaccine.  The nurse explains to her parents that the vaccine is a weaken virus.  What type of immunity is being conferred on the infant?  What type of immunity did the infant from her mother in utero and when she was breast fed by her mother?  What classes of antibodies were given to her by her mother?

A) The total volume of air in Jeffrey’s lungs is 5800 mL. If his IC is 3200 and his RV is 1000, calculate his ERV and FRC.

B) The total volume of air Sally can inhale after a quiet exhalation is 3400 mL. When Sally is sitting still she inhales 400 mL and there is 2200 mL left in her lungs. Calculate or figure out from the information given in the question the following values TV, TLC, IC,   FRC, IRV. ?

C) When at rest Jeremy inspires and expires 600 mL. While his lungs can hold 7000 mL of air only 5500 mL can move in and out, if he really, really tries. Normally, there is 3400 mL of air left in his lungs after a quiet expiration. Calculate or figure out TV, ERV, TLC, IC, FRC, IRV, RV.

describe the anatomy of the upper gastrointestinal tract (from esophagus to the duodenum?

State a clinical diagnosis for the results of the laboratory assays/tests below and describe the relevant sonographic findings of each condition.

i. ↑Ca2+, ↑PTH

ii. FT4/FT3↓, TSH↑

iii. FT4/FT3↑, TSH↓

Explain what effect a lack of functional androgen receptors would have on the development of the reproductive system of a chromosomally XY fetus. Assume sry is present. Your answer should address the development of the gonads, internal reproductive system and genitalia.

Explain how the release of FSH is regulated by negative feedback. Be sure to include all the hormones that are involved and how they affect the release of FSH.

How do FSH, LH, estradiol and androgens interact with one another to produce accelerated follicular growth in the final stage of follicular development? Your answer should reference the synthesis of steroid hormone levels as well as changes in the numbers of thecal and granulosa cells.

7. When you hit your funny bone (olecranon), where do you experience referred pain? What nerve would you hit?

8. a. When a person experiences a heart attack, why is there pain down the left arm? b.  Why would pain persist even after the stimulus is removed?

9. Identify the nerve carrying the axon of the first-order neuron and the levels where the first-order neuron enters the spinal cord.