Jamb Biology Questions - Mammalian circulatory system
Question 1:
The hepatic portal vein is characterized by
- A Beginning and ending with capillaries
- B Connecting the liver and the kidney
- C Carrying deoxygenated blood
- D Ending with large capillaries
- E Having no capillaries
Question 2:
The hepatic portal vein is unique because it
- A Carries deoxygenated blood
- B Begins and ends with capillaries
- C Is the largest vein in mammals
- D Carries digested food
- E Is the shortest vein in mammals
Question 3:
The three blood vessels that supply the mammalian alimentary canals are
- A Segmented artery, hepatic artery and coeliac artery
- B Coeliac artery, anterior mesenteric artery and posteroir mesenteric artery
- C Coelic artery, segmental artery and hepatic artery
- D Hepatic artery, anterior mesenteric artery and posterior mesenteric artery
- E Hepatic portal vein, anterior mesenteric artery and posterior mesenteric artery
Question 4:
The vein which returns blood from the head and arms to the heart is called
- A Aorta
- B Inferior vena cava
- C Superior vena cava
- D Pulmonary vein
- E Pulmonary artery
Question 5:
Blood platelets are important because they are
- A Amoeboid and nucleated
- B Produce antitoxins
- C Produce antibodies
- D Digest harmful bacteria
- E Release thrombin for blood clothing