BIO 460 FINAl
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What are the three layers of arteries and veins?
- Tunica externa
- Tunica media
- Tunica interna
What is the t.media composed of
smooth muscle and connective tissue
What are the two types of arteries?
Elastic and muscular(v.constriction/dilation)
What is the connective tissue of veins?
What are capillary walls composed of
What are the two types of capillaries
continuous and fenestrated
materials move out of the blood and into the cell (vice versa)
What are the four functions of the lymphatic system?
- 1. filter
- 2. absorbtion
- 3. return excess tissue fluid to the blood
- 4. return plasma proteins to the blood
What is the lymph system composed of
lymph capillaries, nodes, and vessels
What are the two lymph ducts and what do they empty into?
Right Lymphatic duct into the right subclavian and the thoracic duct into the left subclavian
What do lyphm vessle empty into?
What are the lymph capillaries in the intestinal villi called
What are the lipids absorbed by the villi coated with
stationary blood clot
moving blood clot
build up in the walls of arteries which is caused by injury to the endothelium
Low Density Lipoproteins
transport cholesterol in the blood which are coated by apoliproteins and taken up by receptors in the body
coat low density lipoproteins
High density Lipoproteins
transports cholesterols and lipds to the liver to be excreted
Ischemic heart disease
lack of blood supply to tissue=>lose of oxygen=> fermination=>latic acid buikd up=> pain
pain of the heart
heart attack caues by arterial blockage
sensation of bleeding
What are the three stages of blood clotting
- 1. vasoconstriction
- 2. formation of platlet plug
- 3. clot
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