Examen

UAFS HUMAN PHYSIOLOGY CONCEPTS EXAM 2025 WITH ACCURATE SOLUTIONS

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UAFS HUMAN PHYSIOLOGY CONCEPTS

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UAFS HUMAN PHYSIOLOGY CONCEPTS

If a patient has a deficiency in LH, what effects might this have on reproductive functions in both males and females? No significant effects on reproductive functions. Increased cortisol production in both genders. Reduced levels of testosterone in males and decreased estrogen production in fema...

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uafs human physiology
uafs human
uafs
uafs human physiology concepts exam 2025 with acc
uafs human physiology concepts exam 2025

Institución UAFS HUMAN PHYSIOLOGY CONCEPTS
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UAFS HUMAN PHYSIOLOGY CONCEPTS EXAM 2025 WITH
ACCURATE SOLUTIONS

1. If a patient has a deficiency in LH, what effects might this have on
reproductive functions in both males and females?

No significant effects on reproductive functions.

Increased cortisol production in both genders.

Reduced levels of testosterone in males and decreased
estrogen production in females.

Increased milk production in females and enhanced sperm
production in males.

2. What hormone released into the blood (shown by letter D) by the
posterior pituitary inhibits or prevents urine formation?

antidiuretic hormone (ADH)

thyroid-stimulating hormone (TSH)

cortisol

oxytocin

,3. Describe the significance of a band not shortening during muscle
contraction.

It indicates that the structural integrity of the muscle fibers is
maintained while the filaments slide past each other.

It shows that the muscle fibers are damaged during contraction.

It means that the muscle is unable to contract effectively.

It suggests that the muscle is in a relaxed state.

4. Diastolic blood pressure is

measures the amount of times your heart isn't refilling

measures hypertension

the pressure remaining in the arteries when the left ventricle of
the heart is relaxed and refilling

measures the force the heart exerts on the walls of the arteries
each time it beats

5. Describe the significance of the closure of the semilunar valves during
isovolumic ventricular relaxation.

The closure of the semilunar valves increases ventricular pressure.

The closure of the semilunar valves initiates ventricular
contraction.

The closure of the semilunar valves prevents backflow of blood
into the ventricles.

The closure of the semilunar valves allows blood to flow into the
aorta.

6. What is the relationship between concentration gradient and diffusion
rate (D.R.) of gases across the respiratory membrane?

It varies randomly.

, It is directly related.

It is inversely related.

There is no relationship.

7. What is the typical resting membrane potential of a nerve cell?

+30 mV

-90 mV

-70 mV

0 mV

8. When depolarization occurs during an action potential:

The inside of the neuron becomes more negative due to K+
leaving the cell

The inside of the neuron becomes more negative due to Na+
leaving the cell

The inside of the cell becomes more positive due to Na+
entering the cell

The inside of the neuron becomes more positive due to K+
entering the cell

9. The structure that permits material to pass from the ileum into the large
intestine is the:

, Ileocecal valve

Cardiac sphincter

Sigmoid colon

Anal canal

10. If the AV node is damaged, what would be the most likely consequence
for heart function?

Decreased blood flow to the lungs

Improved efficiency of blood circulation

Disruption of coordinated contraction between the atria and
ventricles

Increased heart rate due to excess electrical impulses

11. If glomerular capillary colloid osmotic pressure increases due to
dehydration, what would be the expected effect on GFR?

GFR would fluctuate unpredictably

GFR would increase

GFR would decrease

GFR would remain unchanged

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UAFS HUMAN PHYSIOLOGY CONCEPTS EXAM 2025 WITH ACCURATE SOLUTIONS

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