1. In hemostasis

A.Erythropoietin stimulates erythrocyte production

B.Platelets stimulate the intrinsic pathway

C.von Willenbrand factor is an anticoagulant

D. Thrombin converts fibrinogen to fibrin

2.

Which of the following term and definition pair is correctly matched?

Group of answer choices

ESV : the volume of blood in the ventricle after the final filling

pacemaker potential : spontaneous depolarization

P wave : ventricle depolarization

systole : relaxation

3.

Which type of capillary would allow proteins to pass through the gaps between the endothelial cells?

Discontinuous

No capillaries allow proteins to pass through.

Fenestrated

Continuous

4.

When the ventricles are no longer acting as a syncytium and can't pump blood, they are in __________.

bradycardia

ventricular tachycardia

AV node block

fibrillation

Dr. Green is studying the role of rods in vision. Dr. Green applies a K⁺ channel blocker, which inhibits K⁺ channels, to rods in a Petri dish. Before and after adding the K⁺ channel blocker, Dr. Green also measures the concentration of neurotransmitters in the media of the Petri dish and the membrane potential of the rods. What does Dr. Green find? (Select all options that apply)

(a) Glutamate secretion decreases after addition of the K⁺ channel blocker

(b) The membrane of rods depolarizes after addition of the K⁺ channel blocker

(c) Serotonin secretion increases after addition of the K⁺ channel blocker

(d) Action potentials are generated in rods after addition of the K⁺ channel blocker

(e) cGMP secretion increases after addition of the K⁺ channel blocker

Discuss 3 benefits of improving nutrition during pregnancy.

If ADH levels are high, you would expect the concentration of urine to be close to?

a. The concentration of interstitial fluid deep in the medulla

b. The concentration of fluid at the junction of the cortex and medulla

c. The concentration of fluid in the superficial cortex

Trace the blood flow chambers, but don't include
heart valves?
Start at Pulmonary Capillary

End at Right Tastes

Explain the compensatory mechanisms operatory during shock.

List the physical pathway from the point of absorption of the glucose molecule in the gastrointestinal tract to getting to the right gastrocnemius muscle

1. Mr. Ragnor, a 66 year old male, was referred to the department of respiratory diseases at Mount Sighania Hospital with a dry cough accompanied with blood in phlegm over a month. The previous medical history of Mr. Ragnor is uneventful, with the exception of a 40 pack/year history of smoking. Physical examination revealed a rough respiratory murmur in each lung. Laboratory findings were within normal limits, with the exception of prostate special antigen (PSA) at 5.35 ng/ml. Chest CT images revealed an irregular soft-tissue mass with a 9.6 cm maximum diameter, internal uniformity density in the middle-low right lobe close to pulmonary hilum, and a nodular high-density shadow with a 2.5 cm maximum diameter that was a lobulated lesion in the left upper lobe. The patient was positive for metastasis to the mediastinal lymph node. Fiber bronchoscopic biopsy revealed squamous cell carcinoma in the left lobe and SCLC in the right lobe. Additionally, the pharmacogenomic testing revealed mutations in RAS because of which the RAS signaling is ON all the time. Which of the 2 intracellular signaling pathways activated by RAS may promote cell growth and proliferation? Please draw the downstream signaling events involved in the pathways.

Explain the mechanisms that influence hemodynamics

Make a chart of ten known STD’s and separate them based on whether they are parasitic, bacterial or viral. Describe symptoms, treatment options and areas of the body affected. Also include statistics with each disease describing how prevalent they are in the sexually active population. Further separate treatable STD’s versus curable STD’s (you can put this in the same chart if you would like).

Your lab partner did an experiment where he added drug to a tissue, he thinks the drug caused receptor desensitization. He froze the tissue so it could be used in biochemical assays. What experiment would you do to test if the desensitization is the result of acute or chronic drug exposure? How would you interpret the results obtained?

Which of the following processes draws energy directly from the hydrolysis of ATP?

simple diffusion

facilitated diffusion

primary active transport

secondary active transport