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6. the valves that prevent backflow of blood during ventricular relaxation are the
- ventricular valve
- semilunar valves
- aortic valve
- bicuspid valves
7. which of the following best describes the function of the effector
- it interprets all information recieved
- it recieves information from the control centre and produces a response
- it recieves information from the receptor and produces a response
- it sends information to the control centre
8. the airway is protected during swallowing because
- the pharynx moves down to cover the oesophagus
- the larynx moves down to cover the trachea
- the larynx moves up and is covered by the epiglottis
- the pharynx moves up and is covered by the epiglottis
9. Which side of the heart contains oxygenated blood?
- Both Sides
- Only the right side
- Only the left side
- Both the atria and the ventricles
10. the nervous system contain special cells called
- neurotransmitt
- neurons
- neurofibrils
- axons
11. the common passage for both air and food is the
- pharynx
- oesophagus
- trachea
- lung
12. in order, on its way to the exterior urine passes through the
- none of the above
- glomerulus, collecting duct, calyx, urethra, bladder and ureter
- collecting duct, calyx, renal pelvis, ureter, bladder, urethra
- renal pelvis, collecting duct, calyx, ureter, bladder, urethra
13. which of the following is not regulated by a negative feedback mechanism
- blood clotting
- blood pressure
- body temperature
- blood glucose levels
14. The cell membrane is very specialised because
- cells bringing O2 and other nutrients can pass through it
- only selective substances can enter the cell through the membrane
- O2 and other gases are the only substances capable of crossing the membrane
- only harmless substances may enter the cell through the membrane
15. Which of the following is listed in the correct order
- receptor, efferent pathway, control centre, afferent pathway, effector
- effector, efferent pathway, afferent pathway, control centre, effector
- Receptor, afferent pathway, control centre, efferent pathway, effector
- control centre, efferent pathway, receptor, afferent pathway, effector
16. The two body systems that regulate homeostasis are
- cardiovascular and endocrine systems
- endocrine and respiratory systems
- nervous and endocrine systems
- nervous and cardiovascular systems
17. Human beings are able to maintain a certain constancy of their internal environment. This statement refers to:
- positive feedback mechanisms work
- the homeostasis of the body
- physiology of the vascular system
- direct control of cell activities by nucleus
18. the brain stem consists of the following parts
- mid brain, pons and medulla oblongata
- medulla oblongata, cerebrum, cerebellum
- mid brain, cerebrum, pons
- cerebrum, cerebellum, pons
19. the sternum is located in the
- under the clavical
- lower leg
- chest cavity
- upper arm
20. the hollow space in the middle of bone is filled with
- tissue fluid
- blood cells
- bone marrow
- bone cells