A.1.3.1 Cardiovascular System Quiz

What is the primary role of the cardiovascular system?

• To digest food

• To circulate blood continuously

• To store nutrients

• To produce hormones

Which vein carries absorbed nutrients from the small intestine to the liver?

• Pulmonary vein

• Jugular vein

• Hepatic portal vein

• Renal vein

How are amino acids used in the body according to the text?

• For energy storage

• For protein synthesis

• For hormone production

• For oxygen transport

What analogy is used to describe the function of the bloodstream?

• A library storing books

• A delivery truck carrying raw materials

• A computer processing data

• A garden growing plants

Which system releases hormones into the bloodstream to regulate body functions?

• Nervous system

• Endocrine system

• Digestive system

• Respiratory system

Which hormone is secreted by the pancreas to regulate blood sugar levels?

• Adrenaline

• Thyroxine

• Insulin

• Cortisol

During intense exercise, what triggers an increased breathing rate and heart rate?

• Decreased oxygen consumption

• Increased carbon dioxide production

• Decreased carbon dioxide production

• Increased oxygen production

What is the primary function of vasodilation in the body?

• To narrow blood vessels and retain heat

• To widen blood vessels and release excess heat

• To increase blood pressure

• To decrease blood flow to the skin

Which waste product is filtered out by the kidneys and excreted in urine?

• Carbon dioxide

• Lactic acid

• Urea

• Glucose

What is the role of the heart in the cardiovascular system?

• To filter waste products from the blood

• To serve as a transport network for blood

• To pump blood throughout the body, maintaining circulation

• To convert lactic acid into glucose