CIBTAC ANATOM Y AND PHYSIOLOGY NEWEST

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CIBTAC ANATOM Y AND PHYSIOLOGY NEWEST

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

paratoid + tonsular - by jaw/ear submental and submandibular - under chin cervical - neck supra clavicle - polar bone

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