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CIBTAC ANATOM Y AND PHYSIOLOGY NEWEST 2024
ACTUAL EXAM COMLETE 200 QUESTIONS ND
CORRECT DETAILED ANSWERS ( VERIFIED
ANSWERS) |ALREADY GRADED A
what constituents can leave the capillaries? - ANSWER- - leucocytes
- food
- water
- oxygen
what drains into the lymphatic capillaries instead of the blood capillaries? - ANSWER- - pressure is lower here
- excess tissue fluid
- micro organisms
- foreign matter + damaged cells
how is lymph described? - ANSWER- - clear
- colourless fluid
- derived from plasma
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how are micro organisms destroyed? - ANSWER- phagocytic monocytes and neutrophils engulf and destroy bacteria draining them to the lymphatic capillaries.
what does an obstruction in tissue fluid cause? - ANSWER- oedema
what is tissue fluid? - ANSWER- As blood passes through the blood capillaries some of the fluid oozes out through the capillary walls and bathes the tissues
what do lymphatic capillaries eventually form? - ANSWER- they unite to form lymphatic vessels collecting excess tissue fluid.
how are lymphatic capillaries described? - ANSWER- - thin permeable walls
- orientate as minute blind end tubes
- drain away excess tissue fluid
how are lymphatic vessels described? - ANSWER- - one way valves directing lymph to the heart
- knotted or beaded appearance
- drain into the nodes 2 / 4
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what type of circulation is the lymphatic system? - ANSWER- subsidiary
what are the lymphatic organs? - ANSWER- - spleen, thymus gland, adenoids, lymph nodes, appendix, bone marrow and tonsils
what do lacteals do? - ANSWER- found in the villi of small intestine; absorb fat - emulsified by bile and carried to cisterna chilli.
what disease is described as destroying the immunity of an individual? - ANSWER- AIDS
what are the function of the thoracic duct? - ANSWER-
COLLECTS MOST LYMPH
- via the cycsterni chilli
- to left subclavian vein
Whats the function of the right lymphatic duct? - ANSWER-
COLLECTS LESS LYMPH
- via the right subclavian vein 3 / 4
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how is the spleen described? - ANSWER- dark purple oblong shape that has a phagocytic action.left side under the stomach.
- B + B
- forms phagocytes
- stores iron for haemoglobin
how is the thymus described? - ANSWER- triangular tissue against the trachea.
- atrophies after puberty
what does not contain lymphoid tissue in this system? - ANSWER- the larynx
what are the lymph nodes of the face? - ANSWER- preaurricular
- cheek bone\ear
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paratoid + tonsular - by jaw/ear submental and submandibular - under chin cervical - neck supra clavicle - polar bone