When you eat a candy bar, the sugar is absorbed into your blood, and as a result, insulin is released to lower your blood sugar. This is an example of:

a. negative feedback because the response amplifies the change.
    b.   positive feedback because the response amplifies the change.
    c.   negative feedback because the response opposes the change.
    d.   positive feedback because the response opposes the change.
    e.   positive feedback because it has a positive outcome and is beneficial to body homeostasis.

Question 71 (1 point)

All action potentials are the same size.

Question 71 options:

Question 72

Parkinson's Disease is a pituitary disorder.

Question 72 options:

Question 75

PTH stimulates osteoblasts.

Question 75 options:

Question 76

People with myopia have difficulty focusing on objects that are far away.

Question 76 options:

Question 77

Hydroxyapatite is formed from potassium and calcium.

Question 77 options:

Please answer all questions.

2- Please describe the nine regions of the abdomen.

Peristalsis (mass movement) of large intestine following a meal is due to _____ reflex

1. a.	enterogastric
   	b.	gastroileal
   	c.	gastrocolic

1. Which of the following are upregulated by parasympathetic stimulation?

   		Heart rate
   		Digestion
   		Breathing rate
   		Sperm production

2 points   

QUESTION 23

1. Which of the following symptoms could be caused by a heart defect?

   		Low urine production
   		Inability to get or maintain an erection
   		Failure to ovulate
   		Rapid breathing

2 points   

QUESTION 24

1. Thyroxins are the thyroid hormones that control metabolic rate. Which of the following do you expect to occur in someone who has hyperthyroidism?

   		Increase BP
   		Decreased urination
   		Hunger
   		Decreased nutrient absorption

For each of the following situations, describe the effect on blood pressure and the physiological basis of the response: A). Being attacked by a mugger B). Addison’s disease C). Diabetes insipidus

Two patients, both in respiratory distress, present to your hospital when you have only a single ventilator available. Each has a history of emphysema and each wants “everything possible done.” Results of ABG testing of the first patient show PO2 = 68 mmHg, PCO2 = 58 mmHg, and HCO3– = 22 mEq/L. Results for the second patient are PO2 = 59 mmHg, PCO2 = 75 mmHg, and HCO3– = 38 mEq/L. All else being equal and based purely on ABG analysis, which patient should get the ventilator?

The action(s) of aldosterone is (are) to

promote renal reabsorption of water.

promote renal excretion of potassium.

promote renal reabsorption of sodium.

All apply.

Because of _______________, renin is released by _____________. Select one: a. ADH activity; mesangial cells b. systemic blood pressure increases; granular cells c. aldosterone activity; macula densa d. systemic blood pressure decreases; granular cells

Biomechanics, Body segments as Levers

1A: The “Sit-up” Draw or explain

• Differences in muscle involvements and spinal demands with each phase and variation?

1B: Push-ups, Squats, and Vertical Leg Press

• Differences in Internal vs. External Torques?
• Varying demands on the key joints depending on hip and foot positioning?

1. What is mean arterial pressure (MAP) and why is it important? 2. Identify three factors that maintain MAP. 3. What role does the heart play in regulating MAP? 4. What role does peripheral resistance play in maintaining MAP? 5. What effect would acute heart failure have on MAP?

A 24-year old Latin American woman was in good health until she experienced a seizure at home. She was brought to the emergency room and a CT scan was ordered. Multiple cranial lesions were revealed.

A. Identify by scientific name the parasite causing these lesions and name the condition.

B. Based on the epidemiology of the life cycle, how did she become infected with this parasite?

C. How is this infection differ from intestinal infection?

D. What in the patient's history predisposes her to this infection?