Exam 9: Cardiac Physiology

Polycythaemia can occur in association with chronic lung disease.

____________________ are immature circulating erythrocytes that contain residual ribosomes and organelle remnants that have not yet been extruded.

What is the stimulus for increased secretion of erythropoietin?

Reticulocytes are produced from erythrocytes.

Which of the following is NOT a function of white blood cells?

Heme in haemoglobin contains four ____________________-containing groups.

Match these blood disorders labelled a. through h. with their characteristics. (Options may be used more than once or not at all.) a.aplastic anaemia b.pernicious anaemia c.haemolytic anaemia d.haemorrhagic anaemia e.polycythaemia f.leukaemia g.neutrophilia h.sickle cell anaemia -vitamin B₁₂ is not absorbed

The plasma is about 50 percent water.

Match the haemostasis steps, labelled a. through j., with their correct characteristic(s). (Options may be used more than once or not at all.) a.converts fibrinogen to fibrin b.When platelets come into contact with this substance in an injured vessel wall, it causes them to adhere and aggregate. c.When activated, this substance digests the fibrin threads, causing dissolution of the clot. d.substance released by the platelet plug that causes more platelets to aggregate e.first step in haemostasis f.forms the meshwork of the clot g.a plasma protein activated by factor X h.second step in haemostasis i.released from injured tissues; activates extrinsic clotting pathway j.third step in haemostasis -vascular spasm

Match the leukocytes, labelled a. through e., with their correct characteristic. (Options may be used more than once or not at all.) a.neutrophils b.eosinophils c.basophils d.monocytes e.lymphocytes -produce antibodies

Match these blood disorders labelled a. through h. with their characteristics. (Options may be used more than once or not at all.) a.aplastic anaemia b.pernicious anaemia c.haemolytic anaemia d.haemorrhagic anaemia e.polycythaemia f.leukaemia g.neutrophilia h.sickle cell anaemia -associated with sickle cell anaemia

Anaemia is a condition in which the oxygen-carrying capacity of the blood is increased.

Which chemical signal makes platelets sticky upon aggregation?

Which of these statements does NOT correctly describe antibodies?

Undifferentiated ____________________ reside in the bone marrow, where they continuously divide and differentiate to give rise to each of the types of blood cells.

Erythrocytes contain the enzyme ____________________, which catalyzes the conversion of metabolically produced CO₂ into HCO₃^-.

Plasma proteins are not normally used as metabolic fuels.

Which of these statements does NOT correctly describe platelets?

Which of these statements does NOT correctly describe erythrocytes?

Specific hormones direct the differentiation and proliferation of the various types of white blood cells.