Question 1

A patient presents with loss of sensation and motor function below the level of injury after a traumatic event. Which region of the spinal cord is most likely affected if the patient also loses control of the diaphragm?

Accepted Answer

Cervical region

Question 2

During a patellar reflex test, the quadriceps muscle contracts and the leg extends. Which pathway best describes the reflex arc involved?

Accepted Answer

Sensory neuron → motor neuron

Question 3

A student performs a virtual eye dissection and identifies the lens. Which function does the lens primarily serve?

Accepted Answer

Focuses light onto the retina

Question 4

A patient is unable to distinguish between high and low pitch sounds. Which structure of the ear is most likely damaged?

Accepted Answer

Cochlea

Question 5

A blood glucose test is performed after a meal. If the initial glucose concentration is 90 mg/dL and rises to 140 mg/dL after eating, which hormone is primarily responsible for returning glucose levels to normal?

Accepted Answer

Insulin

Question 6

A blood typing test reveals agglutination with anti-A and anti-B sera, but not with anti-Rh. What is the blood type of the individual?

Accepted Answer

AB-

Question 7

A differential white blood cell count shows an elevated number of neutrophils. Which condition is most likely present?

Accepted Answer

Bacterial infection

Question 8

During a heart dissection, a student identifies the thickest wall in the heart. Which chamber is this, and why?

Accepted Answer

Left ventricle, because it pumps blood to the systemic circulation

Question 9

If cardiac output ($$CO) is $$calculated using the formula $$CO = HR 	imes SV$$, where $$HR is $$heart rate and $$SV is $$stroke volume, what is the cardiac output if $$HR = 75$$ beats/min and $$SV = 70 mL/$$beat?

Accepted Answer

$$CO = 5250 mL/$$min$

Question 10

A patient with chronic obstructive pulmonary disease (COPD) has a forced vital capacity ($$FVC) of 2.0 L $$and a forced expiratory volume in 1 second ($$FEV_1) of 1.0 L. $$What is the $$FEV_1/$$FVC$$ ratio, and what does it indicate?

Accepted Answer

$$FEV_1/$$FVC = 0.5$$, indicating obstructive lung disease

Question 11

During urinalysis, the presence of glucose in urine is detected. Which condition is most likely responsible?

Accepted Answer

Diabetes mellitus

Question 12

A kidney dissection reveals the cortex, medulla, and pelvis. Which structure is responsible for filtering blood?

Accepted Answer

Renal cortex

Question 13

A patient has a blood pH of 7.25 and a high concentration of CO$$_2 in $$arterial blood. Which respiratory condition is most likely present?

Accepted Answer

Respiratory acidosis

Question 14

During digestion, which enzyme is responsible for breaking down proteins in the stomach?

Accepted Answer

Pepsin

Question 15

A patient with gallstones has impaired fat digestion. Which organ is most directly affected?

Accepted Answer

Gallbladder

Question 16

Which hormone stimulates the release of gastric acid in the stomach?

Accepted Answer

Gastrin

Question 17

A male patient is diagnosed with low testosterone levels. Which structure is most likely dysfunctional?

Accepted Answer

Testes

Question 18

A female patient has a blockage in her fallopian tubes. Which process is most likely impaired?

Accepted Answer

Fertilization

Question 19

A patient with anemia has a hematocrit of 30%. If the total blood volume is 5 L, what is the volume of red blood cells?

Accepted Answer

$$1.5 L$

Anatomy & Physiology Lab Schedule and Key Topics Study Guide

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