5 Written Questions

1. This is the outermost layer of blood vessel walls
2. Blood flow
   To veins from capillaries
3. Structure
   Very thin wall of muscle and elastic fibres
4. Structure
   Thin wall with a small amount of smooth muscle and elastic tissue. Semilunar valves along the length
5. Structure
   Thin wall mainly of smooth muscle and some elastic fibre

5 Matching Questions

1. Sphygmomanometer
2. Tunica media
3. Venules
4. Arteries
5. Blood pressure

1. a Function
   Carry blood from capillaries back to the veins
2. b Structure
   Thick wall of smooth muscle and elastic fibres
3. c Middle layer of a blood vessel; made up of smooth muscle fibres and thick layer of elastic connective tissue
4. d Instrument calibrated for measuring blood pressure in millimeters of mercury
5. e The pressure of the circulating blood against the walls of the blood vessels

5 Multiple Choice Questions

1. System in which blood is contained within a network of blood vessels
   1. Capillaries
   2. Blood pressure
   3. Closed circulatory system
   4. Double circulatory system
2. The innermost layer of a blood vessel
   1. Hypertension
   2. Tunica intima
   3. Tunica externa
   4. Tunica media
3. Blood flow
   To the heart. Flow is slow with low pressure. No pulse
   1. Arterioles
   2. Venules
   3. Arteries
   4. Veins
4. Blood flow
   Leaves the heart. Rapid flow with high pressure which pulses
   1. Arteries
   2. Veins
   3. Arterioles
   4. Capillaries
5. Blood flow
   Smooth muscle contracts to narrow (constrict) the lumen and decrease the flow to certain tissues OR relaxes to widen (dilate) the lumen to increase the blood flow
   1. Venules
   2. Veins
   3. Arterioles
   4. Arteries

5 True/False Questions

1. Double circulatory system → Refers to the separate systems of pulmonary circulation and the systemic circulation. When there are two circuits from the heart, it is described as a double circulatory system. The blood passes through the heart twice for a full circulation through the body.

   True        False

2. Arteries - Arterioles - Capillaries - Venules - Veins → What is the order of blood vessels around the body? (Beginning with arteries)

   True        False

3. Capillaries → Structure
   Thick wall of smooth muscle and elastic fibres

   True        False

4. Veins → Structure
   Very thin wall of muscle and elastic fibres

   True        False

5. Capillaries → Structure
   Thick wall of smooth muscle and elastic fibres

   True        False