n Flashcards
(25 cards)
What is the primary function of the circulatory system?
To transport blood, nutrients, gases, and waste products throughout the body.
True or False: The heart is a muscular organ that pumps blood through the circulatory system.
True
Fill in the blank: The two main types of circulation are _____ circulation and _____ circulation.
systemic; pulmonary
What are the components of blood?
Red blood cells, white blood cells, platelets, and plasma.
Which blood vessels carry oxygenated blood away from the heart?
Arteries
What is the role of veins in the circulatory system?
To return deoxygenated blood back to the heart.
Multiple choice: Which of the following is NOT a function of the circulatory system? A) Transport nutrients B) Regulate body temperature C) Digest food D) Remove waste
C) Digest food
True or False: Capillaries are the smallest blood vessels and facilitate the exchange of oxygen and carbon dioxide.
True
What is the function of red blood cells?
To carry oxygen from the lungs to the body’s tissues and return carbon dioxide to the lungs.
Fill in the blank: The _____ is responsible for the rhythmic contractions that pump blood.
heart
What is the average resting heart rate for adults?
60 to 100 beats per minute.
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
True or False: Plasma makes up about 55% of total blood volume.
True
What is the primary role of platelets?
To aid in blood clotting.
Fill in the blank: The _____ valve prevents backflow of blood into the left atrium.
mitral
What is the significance of the pulmonary circulation?
It carries deoxygenated blood from the heart to the lungs for oxygenation.
Multiple choice: Which structure in the heart separates the left and right sides? A) Septum B) Aorta C) Valve D) Atrium
A) Septum
True or False: The circulatory system includes the heart, blood vessels, and blood.
True
What is hypertension?
A condition characterized by consistently high blood pressure.
Fill in the blank: The _____ system works closely with the circulatory system to transport nutrients and waste.
lymphatic
What is the function of white blood cells?
To fight infections and protect the body from disease.
Multiple choice: Which part of the heart pumps oxygenated blood to the body? A) Right atrium B) Left atrium C) Left ventricle D) Right ventricle
C) Left ventricle
True or False: The tricuspid valve is located between the right atrium and right ventricle.
True
What is the role of the aorta?
To carry oxygenated blood from the heart to the rest of the body.
