Anatomy and Physiology Basics Flashcards
6 cards from real CNA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Anatomy and Physiology Basics flashcards as text
Which chamber of the heart pumps oxygenated blood to the body through the aorta?
Answer: Left ventricle
The left ventricle pumps oxygenated blood through the aorta to the entire body. The right ventricle sends deoxygenated blood to the lungs via the pulmonary artery.
What is the primary function of the respiratory system?
Answer: Exchange oxygen and carbon dioxide between the body and the environment
The respiratory system's main job is gas exchange: bringing oxygen into the body through inhalation and expelling carbon dioxide through exhalation.
Which organ is responsible for filtering waste products from the blood and producing urine?
Answer: Kidney
The kidneys filter blood, remove waste products and excess water, and produce urine, which travels to the bladder for storage and elimination.
What type of muscle tissue is found in the walls of the heart?
Answer: Cardiac muscle
The heart is made of cardiac muscle, which is involuntary (works automatically without conscious control) and striated in appearance.
Which part of the nervous system controls involuntary functions such as heart rate and digestion?
Answer: Autonomic nervous system
The autonomic nervous system controls involuntary body functions like heart rate, breathing, digestion, and blood pressure without conscious effort.
The digestive system breaks down food into nutrients that can be absorbed into the bloodstream. Where does most nutrient absorption occur?
Answer: Small intestine
The small intestine is the primary site of nutrient absorption. Its inner lining is covered with finger-like projections called villi that greatly increase the surface area for absorption.