HBS Part 1 Quiz

Which system provides protection against environmental factors and helps regulate body temperature?

• Skeletal system

• Integumentary system

• Muscular system

• Cardiovascular system

What type of feedback loop causes an increase in the initial stimulus?

• Negative feedback loop

• Positive feedback loop

• Homeostatic loop

• Neural loop

Which organ system is responsible for removing nitrogenous wastes from the body?

• Digestive system

• Respiratory system

• Excretory system

• Integumentary system

In the skeletal system, where does blood cell production occur?

• Compact bone

• Red bone marrow

• Yellow bone marrow

• Periosteum

What is the primary function of the cardiovascular system?

• Digestion of nutrients

• Gas exchange

• Transport of materials throughout the body

• Waste elimination

Which of the following is NOT a component of the digestive system?

• Gallbladder

• Pancreas

• Thyroid

• Small intestine

What type of muscle tissue is found in the heart?

• Skeletal muscle

• Smooth muscle

• Cardiac muscle

• Striated muscle

Which system directly interacts with the external environment to exchange gases?

• Cardiovascular system

• Respiratory system

• Digestive system

• Excretory system

What is the main function of the skeletal system?

• Produce hormones

• Support and protect internal organs

• Filter blood

• Digest food

In a negative feedback loop controlling blood sugar, what happens when glucose levels are too high?

• Glucagon is released

• Insulin is inhibited

• Glucose production increases

• Insulin is released