TEAS Science: Human Body Systems and Anatomy 2 — Questions and Answers
Question 1: Which structure prevents food from entering the trachea during swallowing?
- Epiglottis (Correct answer)
- Uvula
- Larynx
- Pharynx
Correct answer: Epiglottis
The epiglottis is a flap of cartilage that covers the trachea during swallowing to direct food into the esophagus.
Question 2: What is the primary function of red blood cells?
- Fight infection
- Transport oxygen (Correct answer)
- Form blood clots
- Produce antibodies
Correct answer: Transport oxygen
Red blood cells contain hemoglobin, which binds and carries oxygen throughout the body.
Question 3: Which part of the nephron is responsible for filtering blood in the kidney?
- Loop of Henle
- Glomerulus (Correct answer)
- Collecting duct
- Ureter
Correct answer: Glomerulus
The glomerulus is a network of capillaries where initial blood filtration occurs in the nephron.
Question 4: The pancreas releases insulin in response to which condition?
- Low blood glucose
- High blood glucose (Correct answer)
- Low blood pressure
- High body temperature
Correct answer: High blood glucose
Insulin is released when blood glucose is high, allowing cells to take up glucose and lowering blood sugar.
Question 5: Which type of muscle is found in the walls of the stomach and intestines?
- Skeletal muscle
- Cardiac muscle
- Smooth muscle (Correct answer)
- Striated muscle
Correct answer: Smooth muscle
Smooth muscle is involuntary and lines hollow internal organs like the digestive tract.
Question 6: What is the largest organ of the human body?
- Liver
- Lungs
- Skin (Correct answer)
- Brain
Correct answer: Skin
The skin is the body's largest organ and serves as a protective barrier and temperature regulator.
Question 7: Which chamber of the heart pumps oxygenated blood to the body?
- Right atrium
- Right ventricle
- Left atrium
- Left ventricle (Correct answer)
Correct answer: Left ventricle
The left ventricle pumps oxygen-rich blood into the aorta and out to the body.
TEAS Science: Human Body Systems and Anatomy 2
Which structure prevents food from entering the trachea during swallowing?