How will changes in arterial P_O2 impact ventilation? Select the one most accurate response.

Group of answer choices

Small changes in arterial P_O2 will result in fine changes to V_E in order to maintain relatively stable arterial P_O2.

Arterial P_O2 will not affect ventilation unless it drops below 60mmHg.

O₂ cannot cross the blood/brain barrier, thus cannot interact with central chemoreceptors to have an impact on ventilation.

Breathing 100% O₂ at atmospheric pressure will greatly reduce the urge to breathe.

List and briefly describe the mechanisms for smooth muscle contraction in terms of altering (increasing) the force of contraction.

A friend of yours needs bypass surgery. She does not want to get blood from a blood blank and asks you to call up her friends and ask them to donate blood. Her blood type is A-

You find out that 4 have blood type O+; 5 have blood type A+; 1 has blood type O-; 1 has blood type B-; 1 has blood type AB-

You will ask the friends with blood type/s _______________________ to donate blood. Why? Your answer must include an explanation about antigens and antibodies.

Provided below are the pressures in the left atrium, left ventricle, and aorta at a given point during the cardiac cycle of two different NORMAL patients. Based on the three pressures, what phase of the cardiac cycle are each of the two patients in?

Patient 1

Atrial pressure: 10 mmHg

Ventricular pressure: 75 mmHg

Aortic pressure: 85 mmHg

Patient 2

Atrial pressure: 15 mmHg

Ventricular pressure: 10 mmHg

Aortic pressure: 90 mmHg

A) Patient 1: Isovolumetric Contraction

Patient 2: Filling

B) Patient 1: Isovolumetric contraction

Patient 2: Ejection

C) Patient 1: Isovolumetric Relaxation

Patient 2: Ejection

D) Patient 1: Filling

Patient 2: Isovolumetric Contraction

E) Patient 1: Filling

Patient 2: Isovolumetric Relaxation

What 3 injuries might this predispose the athlete to suffer and why because of pes planus

the most frequently broken bone in the body is the

what is the most frequent broken bone in the body?

5. An athlete experiences a FOOSH mechanism and has radial side wrist pain. You suspect a scaphoid fracture - which fracture test would be ideal for this assessment prior to sending for x-rays?

2. The x-ray comes back negative but the athlete is still in a lot of pain. How will you manage the injury in the short term and why?

3. What is the risk if this injury isn’t managed properly? If misdiagnosed, what follow up care is required?  
4. What 3 other injuries might this athlete have suffered with the mechanism? Be specific about the structure and type of injury.

Sarah's doctor has detected late-stage malignant ovarian tumors. Which branch of the immune system would respond to these conditions?

A) cell-mediated immune response - Tc cells

B) cell-mediated immune response - B lymphocytes

C) macrophages

D) complement

A 50-year-old female presents to your office complaining of headaches, pain in her joints, and enlarged shoe, glove, and hat size. Physical examination is significant for a predominant jaw, increased soft-tissue in the palm and soul and a large tongue.

Laboratory workup is significant for hyperglycemia.

1. What lab tests would be ordered for this condition?

2. What treatments would be recommended for this patient?

3. If the patient would go untreated what would be the complications from this disorder or this condition?

Which of the three non-human organisms (rats, elephants, and dolphins) do you think would be best suited for research on mitochondrial disorders and their effect on ATP production? Explain your answer. (you can take a variety of factors into account.)