Module 1 Practice Questions

Question 1

The muscular layer of a blood vessel is the:
a) Tunica interna
b) Tunica media
c) Tunica adventitia
d) Tunica intima
e) Tunica externa

Answer 1

B

Question 2

The normal pH range for blood is:
a) 6.35-7.35
b) 6.35-9.35
c) 7.35-9.45
d) 7.35-7.45
e) 7.35-8.5

Answer 2

D

Question 3

Compared to arteries, veins:
a) Have thinner walls.
b) Have internal and external elastic membranes.
c) Have a pleated endothelium.
d) Have more smooth muscle in their tunica media.
e) Are usually round when cut.

Answer 3

A

Question 4

Which of the following layers of a vessel contains collagen fibres with scattered bands of elastic fibres?
a) Internal elastic membrane
b) External elastic membrane
c) Tunica externa
d) Tunica intima
e) Tunica media

Answer 4

C

Question 5

Which of the following is NOT a component of blood?
a) Formed elements
b) White blood cells
c) Platelets
d) Carbon dioxide
e) Blood plasma

Answer 5

D

Question 6

The haematocrit is composed of:
a) Proteins
b) RBC
c) WBC
d) Platelets
e) Plasma

Answer 6

B

Question 7

These vessels make up the largest blood reservoir.
a) Venules and capillaries
b) Arteries and arterioles
c) Arterioles and capillaries
d) Veins and venules
e) Aorta and veins

Answer 7

D

Question 8

Blood returning to the heart from the systemic circuit first enters the…
a) left ventricle
b) conus arteriosus
c) left atrium
d) right ventricle
e) right atrium

Answer 8

E

Question 9

Each haemoglobin molecule contains:
a) None of the options listed are correct
b) Four alpha chains
c) One heme group
d) One alpha and one beta chain
e) Four iron atoms

Answer 9

E

Question 10

All the circulating red blood cells originate in the:
a) Lymph tissue
b) Thymus
c) Spleen
d) Heart
e) Red bone marrow

Answer 10

E

Question 11

Platelets are pinched off from giant multinucleated cells in the bone marrow called:
a) megakaryocytes
b) myeloblasts
c) erythroblasts
d) lymphoblasts
e) normoblasts

Answer 11

A

Question 12

The average lifespan of a red blood cell is:
a) 24 hours
b) approximately 1 year
c) 1 month
d) 4 months
e) many years

Answer 12

D

Question 13

Cardiac muscle cells electrically connect to neighbouring cells by…
a) intermediate discs
b) desmosomes
c) chordae tendinae
d) contractile fibres
e) gap junctions

Answer 13

E

Question 14

Haemostasis is:
a) The process of red blood cell maturation, occurs in the blood.
b) The process of blood clotting due to rupture of a blood vessel.
c) The formation of all cellular blood components, and occurs in the bone marrow.
d) The process of white blood cell formation, and occurs in the bone marrow.
e) The process of platelet formation, and occurs in the blood.

Answer 14

B

Question 15

The “universal donor” blood type is:
a) O positive
b) B positive
c) O negative
d) AB negative
e) AB positive

Answer 15

C

Question 16

Which of the following is NOT one of the formed elements of blood?
a) Basophils.
b) Lymphocytes.
c) RBCs.
d) Platelets.
e) Antibodies.

Answer 16

E

Question 17

Which component of an artery wall controls the diameter of the lumen via vasoconstriction and vasodilation?
a) Connective tissue.
b) External elastic lamina.
c) Smooth muscle cells.
d) Tunica adventitia.
e) Internal elastic lamina

Answer 17

C

Question 18

Pulmonary veins:
a) Carry oxygen-rich blood to the tissues.
b) Carry oxygen-rich blood to the lungs.
c) Carry oxygen-poor blood to the lungs.
d) Carry oxygen-rich blood to the heart.
e) Carry oxygen-poor blood to the heart.

Answer 18

D