Biology Topic 2 Flashcards
(27 cards)
What is the primary function of the circulatory system?
To transport oxygen, nutrients, hormones, and waste products throughout the body.
True or False: The heart has four chambers.
True.
Fill in the blank: The two upper chambers of the heart are called the _____ and _____ .
atria, ventricles.
What type of blood vessel carries blood away from the heart?
Arteries.
What is the name of the largest artery in the body?
Aorta.
True or False: Veins carry oxygen-rich blood.
False.
What is the role of capillaries in the circulatory system?
To facilitate the exchange of oxygen, carbon dioxide, nutrients, and waste between blood and tissues.
Which blood component is responsible for transporting oxygen?
Red blood cells.
What is the liquid component of blood called?
Plasma.
Fill in the blank: The _____ circulatory system involves the flow of blood between the heart and lungs.
pulmonary.
What is the function of the valves in the heart?
To prevent backflow of blood.
Multiple choice: Which part of the heart receives deoxygenated blood? A) Left atrium B) Right atrium C) Left ventricle D) Right ventricle
B) Right atrium.
What is the term for the heartbeat’s electrical signal?
Pacemaker.
True or False: Blood pressure is the force exerted by circulating blood on the walls of blood vessels.
True.
What is the main function of white blood cells?
To fight infections and protect the body against diseases.
Fill in the blank: The _____ circuit delivers oxygenated blood to the body and returns deoxygenated blood to the heart.
systemic.
What is the name of the condition characterized by high blood pressure?
Hypertension.
Multiple choice: What type of blood vessel has thin walls and valves? A) Arteries B) Veins C) Capillaries D) None of the above
B) Veins.
What is the primary role of platelets in the blood?
To aid in blood clotting.
True or False: The circulatory system is also known as the cardiovascular system.
True.
What is the term for the process of blood cell formation?
Hemopoiesis.
Fill in the blank: The _____ is a muscular organ that pumps blood throughout the body.
heart.
What is the average resting heart rate for adults?
60 to 100 beats per minute.
Multiple choice: Which of the following is NOT a type of blood vessel? A) Arteries B) Veins C) Alveoli D) Capillaries
C) Alveoli.
