FREE Biology Anatomy and Physiology Questions and Answers
What part of the brain controls voluntary movements?
The cerebrum, specifically the motor cortex, is responsible for initiating and controlling voluntary movements, as well as cognitive functions like thinking and decision-making.
What is the primary function of the circulatory system?
The circulatory system, consisting of the heart, blood, and blood vessels, ensures the transport of oxygen and nutrients to cells while removing waste products like carbon dioxide.
What is the primary purpose of red blood cells?
Red blood cells contain hemoglobin, a protein that binds to oxygen and transports it from the lungs to tissues throughout the body, while also carrying carbon dioxide back to the lungs for exhalation.
What type of muscle is found in the walls of internal organs, such as the stomach and intestines?
Smooth muscle is an involuntary muscle type found in the walls of hollow organs. It helps move substances through the digestive system, blood vessels, and other structures.
Which organ is primarily responsible for filtering blood and removing waste products?
The kidneys filter waste products and excess substances from the blood, producing urine. They also regulate electrolyte balance and blood pressure.