A&P 3.9 WBC & Immunity Flashcards
Peroneal muscles also known as
Fibularis
PERONEUS brevis
A, I ,O
Origin: distal 2/3 lateral fibula
Insertion: base of the 5th metatarsal
Action: plantar-flexion and eversion of foot
COULD BE FIBULARIS PERONEUS BREVIS
PERONEUS longus
A, I, O
Origin: proximal 2/3 lateral fibula and head of the fibula
Insertion: base of the first metatarsal and medial cuniform
Action: plantar-flexion and eversion of foot
Whole blood
55% plasma - 91% water, 8% proteins, 1% solutes and waste
45% formed elements - 99% RBC, 1% WBC and platelets
Platelets
Thrombo - clot, cytes - cell Fragments of MEGAKAROCYTEs Normal value of 250,000/ ml blood Live 5-9 days Function to form platelet plugs
Hemostasis
The sequence of events that stops bleeding
1- vascular spasm - vasoconstriction
2- platelet plug
3- coagulation-clotting
Clotting is the interweaving of the fibrin threads from plasma
Clotting pathologies
BODYWORK CONTRAINDICATED MOST OF THE TIME
Thrombus - stationary clot
Embolus - floating debris (clot, fat air bubble)
- venous- pulmonary embolism
- arterial - coronary embolism/ TIA / renal infarct
Hemophilia - lack of clotting factor
TIA
Transient ischemia attack
Red blood pathologies
Anemias Polycythemia (too many RBC) Sickle cell/thalassemia Hemorgic (blood loss) Aplastic Pernicious (vitamin B12 not absorbed)
White blood cells
Leukocytes
1 WBC for every 700 RBC
5 types classified according to the presence or absence of granules and staining classification of their cytoplasm
Granular WBC
3
Visible granules (rough edges) under a microscope Named based on response to color dyes
Basophils
Eosinophils
Neutrophils
Basophils
Granules dye bluish purple with basic dyes
Intensify ALLERGIC REACTION
release HISTAMINE
less than 1% of circulating WBCS
Eosinophils
Granular dye reddish orange with acidic dyes
COMBAT ALLERGIC REACTION
Release ANTI-HISTAMINES
2-4% of circulating WBCs
Neutrophils
Fairly neutral to dyes
Perform PHAGOCYTOSIS
60-70% circulating WBCs
FASTEST RESPONSE OF ALL WBC’S TO BACTERIA
Agrandular WBC
2
Granules not visible under a microscope
Lymphocytes (lymphatic system)
Monocytes