Notes in 3. Circulatory system

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Published	02/12/2025	Transports fluids (nutrients and oxygen dissolved) throughout the body
Published	02/12/2025	Circulatory system consist of
Published	02/12/2025	There are three types of blood vessels
Published	02/12/2025	make up the blood transportation network
Published	02/12/2025	carries nutrients, oxygen, and waste products to and from the cells.
Published	02/12/2025	Blood under high pressure leaves the heart and is distributed to the body by a branching system of
Published	02/12/2025	The final distributing vessels,________ deliver oxygenated blood to _________.
Published	02/12/2025	Composed of endothelium; the flat cells that line the lumen of blood vessels supported by the subendothelial tissue.
Published	02/12/2025	Internal elastic lamina
Published	02/12/2025	Composed primarily of smooth muscles supported by your external elastic lamina.
Published	02/12/2025	Made up of tough connective tissue sheath that covers the blood vessels
Published	02/12/2025	Smallest artery
Published	02/12/2025	Endothelium is supported by
Published	02/12/2025	Delivers oxygenated blood towards the capillary bed
Published	02/12/2025	 Tighter junction Substances crossing through would cross through phagocytosis or pinocytosis.
Published	02/12/2025	Breaks between intimal cells termed as fenestrations or pores which allows free passage of water and other substances across the openings.
Published	02/12/2025	difference between the capillaries
Published	02/12/2025	Interchange of O2, nutrients, waste products and other subs with extracellular fluid occurs.
Published	02/12/2025	Blood from the capillary beds passes into__________, which resemble wide capillaries.
Published	02/12/2025	largest veins
Published	02/12/2025	Muscular organ that pumps blood through the body’s vast system of blood vessels.
Published	02/12/2025	FOUR CHAMBERS OF THE HEART
Published	02/12/2025	receives un-oxygenated blood from the body (superior and inferior vena cava)
Published	02/12/2025	receives oxygenated blood from the lungs, carried by the pulmonary veins
Published	02/12/2025	Thinner wall, pumps un-oxygenated blood to the lungs. (requires lower pressure)
Published	02/12/2025	Thicker wall, pumps oxygenated blood to the body (requires higher pressure to pump blood)
Published	02/12/2025	Brings un-oxygenated blood to the lungs.
Published	02/12/2025	Distributes oxygenated blood to the rest of the body.
Published	02/12/2025	TWO CIRCULATIONS
Published	02/12/2025	BLOOD VESSEL WALLS:
Published	02/12/2025	TUNICA INTIMA
Published	02/12/2025	A middle layer consisting primarily of smooth muscle.
Published	02/12/2025	An outer connective tissue layer or sheath.
Published	02/12/2025	Carry blood FROM THE HEART and distribute it to the body.
Published	02/12/2025	The types of arteries are distinguished on the basis of:
Published	02/12/2025	There is a gradual change in morphological char. From one type to another.
Published	02/12/2025	three types of arteries
Published	02/12/2025	LARGE ELASTIC ARTERIES (conducting arteries)
Published	02/12/2025	MEDIUM MUSCULAR ARTERIES (distributing arteries)
Published	02/12/2025	SMALL ARTERIES AND ARTERIOLES
Published	02/12/2025	Mean arterial pressure is a fxn of cardiac output and resistance in the arterioles= the vol produced by the heart times vessel radius (vasodilation/va…
Published	02/12/2025	Communication between the multiple branches of an artery.
Published	02/12/2025	Previous numerous potential detours for blood flow in case the usual pathway is obstructed by compression, the position of a joint, pathology, or surg…
Published	02/12/2025	If main channel is occluded
Published	02/12/2025	Functional terminal arteries
Published	02/12/2025	Arteries that do not anastomose with adjacent arteries are
Published	02/12/2025	VENOUS ANASTOMOSIS
Published	02/12/2025	ARTERIAL ANASTOMOSIS
Published	02/12/2025	Generally, return DEOXYGENATED (venous) blood from the capillary beds to the heart
Published	02/12/2025	large pulmonary veins
Published	02/12/2025	Carry well-oxygenated blood (AB from lungs to heart)
Published	02/12/2025	➢ The smallest veins
Published	02/12/2025	➢ Drain capillary beds
Published	02/12/2025	VENULES
Published	02/12/2025	Drain venous plexus
Published	02/12/2025	Accompany medium arteries
Published	02/12/2025	flap valves in medium veins
Published	02/12/2025	Have flap valves
Published	02/12/2025	MEDIUM VEINS
Published	02/12/2025	➢ Char. By wide bundles of longitudinal smooth muscle➢ A well-developed tunica adventitia
Published	02/12/2025	Superior Vena Cava
Published	02/12/2025	- More abundant than arteries- Walls are thinner
Published	02/12/2025	The arteries and veins make up a
Published	02/12/2025	Only ____ of the blood occupies the arteries.
Published	02/12/2025	L. venae comitantes
Published	02/12/2025	ACCOMPANYING VEINS
Published	02/12/2025	Serves as a countercurrent heat exchanger
Published	02/12/2025	SYSTEMIC VEINS
Published	02/12/2025	BLOOD CAPILLARIES
Published	02/12/2025	The HYDROSTATIC PRESSURE in the arterioles
Published	02/12/2025	AV SHUNTS
Published	02/12/2025	Permit blood to pass directly from the arterial to the venous side of the circulation w/o passing through capillaries.
Published	02/12/2025	Capillary walls
Published	02/12/2025	HOW TO DESCRIBE ARTERIES
Published	02/12/2025	Flow of blood
Published	02/12/2025	parts of the heart
Published	02/12/2025	Provides an important immune mechanism for the body.
Published	02/12/2025	Is involved in the metastasis of cancer cells and provides a route for transporting fat and largeprotein molecules absorbed from the intestine to the …
Published	02/12/2025	Serve as one-way drainage toward the heart and return lymph to the bloodstream through the
Published	02/12/2025	Lymphatic Vessels
Published	02/12/2025	Lymphatic Capillaries
Published	02/12/2025	Lymphatic capillaries Are called ________ in the villi of the small intestine, where they absorb emulsified fat.
Published	02/12/2025	Absorb lymph from tissue spaces and transport it back to the venous system.
Published	02/12/2025	Are organized collections of lymphatic tissue permeated by lymph channels.
Published	02/12/2025	Produce lymphocytes and plasma cells and filter the lymph
Published	02/12/2025	Trap bacteria drained from an infected area and contain reticuloendothelial cells and phagocyticcells (macrophages) that ingest these bacteria
Published	02/12/2025	Lymph
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