Question 1

Which of the following best describes the difference between endemic and epidemic diseases?

Accepted Answer

Endemic diseases are consistently present in a population, whereas epidemic diseases occur suddenly in higher-than-normal numbers.

Question 2

A patient is diagnosed with hepatitis. Which organ is primarily affected, and what is the main function of this organ?

Accepted Answer

The liver; it detoxifies chemicals and metabolizes drugs.

Question 3

Which of the following best defines the term 'cranial'?

Accepted Answer

Toward the head

Question 4

A patient is experiencing muscle weakness and bone pain. Blood tests reveal low calcium levels. Which hormone is most likely deficient?

Accepted Answer

Parathyroid hormone (PTH)

Question 5

Which of the following equations correctly represents the osmotic pressure ($\Pi$) of a solution according to van't Hoff's law?

Accepted Answer

$\Pi = iMRT$

Question 6

Which type of muscle tissue is classified by striations and voluntary control?

Accepted Answer

Skeletal muscle

Question 7

During facilitated diffusion, which molecule is most likely to be transported across the cell membrane?

Accepted Answer

Glucose

Question 8

Which of the following best describes the role of osteoclasts in bone physiology?

Accepted Answer

Osteoclasts break down bone tissue to release calcium.

Question 9

A patient presents with yellowing of the skin and eyes. Laboratory tests show elevated bilirubin levels. What is the most likely diagnosis?

Accepted Answer

Jaundice

Question 10

Which of the following statements about the difference between ligaments and tendons is correct?

Accepted Answer

Ligaments connect bone to bone, while tendons connect muscle to bone.

Question 11

Which of the following best describes the function of lysosomes in a cell?

Accepted Answer

Digestion and breakdown of cellular waste

Question 12

Which phase of mitosis is characterized by the alignment of chromosomes along the center of the cell?

Accepted Answer

Metaphase

Question 13

Which of the following is a function of the medulla oblongata?

Accepted Answer

Control of heart rate and breathing

Question 14

A patient is unable to distinguish between hot and cold sensations on their skin. Which part of the brain is most likely affected?

Accepted Answer

Somatic sensory cortex

Question 15

Which of the following best describes the role of surfactant in the lungs?

Accepted Answer

It reduces surface tension, preventing alveolar collapse.

Question 16

Which equation correctly represents the relationship between cardiac output ($CO$), heart rate ($HR$), and stroke volume ($SV$)?

Accepted Answer

$CO = HR 	imes SV$

Question 17

Which of the following is a primary function of macrophages in the immune system?

Accepted Answer

Phagocytosis of pathogens and cellular debris

Question 18

A patient is experiencing rapid heart rate and increased blood pressure after a stressful event. Which hormones are most likely responsible for these symptoms?

Accepted Answer

Norepinephrine and epinephrine

Question 19

Which of the following best describes the difference between ventilation and respiration?

Accepted Answer

Ventilation is the movement of air in and out of the lungs, while respiration is the exchange of gases between blood and tissues.

Question 20

Which of the following is a negative feedback loop in human physiology?

Accepted Answer

Regulation of blood glucose by insulin

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