ANAT 261 Lecture Notes - Lecture 11: Arteriole, Adventitia, Venule

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peachdeer29

16 Mar 2012

School

McGill University

Department

Anatomy & Cell Biology

Course

ANAT 261

Professor

Jason Young

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Document Summary

Lymphatic system is separate from the circulatory system. It starts as blind capillaries larger lymphatic vessels drain into larger veins such as the superior vena cava: lymph is made of plasma and immunoglobulins. Right side - afferent system, left efferent system. Each box on both sides (in the above diagram) are parallel because they go together (i. e an arteriole and a venule, large vein and a large artery, etc. ) Larger arteries and veins are easy to distinguish because only a piece of their walls are seen under a light microscope. When observing blood vessels (both veins and arteries) there are 3 layers intima (closer to lumen), media (larger for an artery), adventitia (connective tissue around the structure). The media of muscular artery contains more than four layers of muscle cells (spindle shaped smooth muscle cells). Both media contain reticular fibres, proteoglycans, and sometimes external elastic membrane.

Related Questions

Which characteristic distinguishes the circulatory system from the lymphatic system?

	A.	Circulatory system transports vitamins, lymphatic system does not
	B.	Circulatory system is pumped by the heart, lymphatic system has no pump
	C.	Circulatory system is a transport system, lymphatic system is not
	D.	Circulatory system contains lacteals, lymphatic system contains capillaries

What is the role of bile in the bodyâs handling of lipids?

	A.	Bile separates fatty acids from glycerol so that they can be absorbed.
	B.	Bile attaches to a very small proportion of fat in the small intestine and causes it to be excreted.
	C.	Bile helps keep lipids in small droplets in the small intestine.
	D.	Bile aids in formation of lipoproteins.

Identify the correct sequence of events in the digestion of fat.

	A.	mixing into chyme, absorption, cephalic phase, digestion
	B.	cephalic phase, digestion, mixing into chyme, absorption
	C.	cephalic phase, mixing into chyme, digestion, absorption
	D.	absorption, cephalic phase, mixing into chyme, digestion

indigowater-buffalo650

Describe the general flew of lymph from lymphatic capillaries through return to three circulatory system. Include relevant structures and functional aspects of this journey.