aim: describe the structures and functions of arteries, capillaries and veins. obj: given activity...

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Aim: Describe the structures and functions of arteries, capillaries and veins. OBJ: Given activity sheet SWBAT describe the structures and functions of arteries, capillaries and veins with 70% accuracy. DN: HW Check- Body’s Transport System; Watch Blood Vessels Video ACT: Review : Blood Vessels Text, read p. 85-89; Complete A Closer Look At Blood Vessels Booklet Watch Heart Video; Circulatory System video HW: Work on CRE Review Sheets; CRE Exam, March 9; INERH Exam, March 20

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Page 1: Aim: Describe the structures and functions of arteries, capillaries and veins. OBJ: Given activity sheet SWBAT describe the structures and functions of

Aim: Describe the structures and functions of arteries, capillaries and veins.

OBJ: Given activity sheet SWBAT describe the structures and functions of arteries, capillaries and veins with 70% accuracy.

DN: HW Check- Body’s Transport System;Watch Blood Vessels Video

ACT: Review : Blood VesselsText, read p. 85-89; Complete A Closer Look At Blood Vessels BookletWatch Heart Video; Circulatory System video

HW: Work on CRE Review Sheets; CRE Exam, March 9; INERH Exam, March 20

Page 2: Aim: Describe the structures and functions of arteries, capillaries and veins. OBJ: Given activity sheet SWBAT describe the structures and functions of

Blood Vessels

Arteries: blood flows away from the heart; 3 cell layers, thick walledVeins: blood flows towards the heart; Valves prevent backflow due to low blood pressure;3 cell layers, thin walledCapillaries: connect arterioles to veinuoles; The site of capillaries/tissues is where nutrient/waste exchange by diffusion takes place; 1 cell layer

Page 3: Aim: Describe the structures and functions of arteries, capillaries and veins. OBJ: Given activity sheet SWBAT describe the structures and functions of

Blood VesselsPulse: expansion and relaxation of the artery wallDiffusion (osmosis): movement of molecules from an area of high concentration to an area of low concentration (through membrane).Blood Pressure: caused by the contraction of the heart’s ventricles. As blood moves away from the heart, blood pressure decreases.

Page 4: Aim: Describe the structures and functions of arteries, capillaries and veins. OBJ: Given activity sheet SWBAT describe the structures and functions of

Higher Pressure

Lower Pressure

Capillary(nutrient & waste)

Exchange withTissue (Body) Cells

Page 5: Aim: Describe the structures and functions of arteries, capillaries and veins. OBJ: Given activity sheet SWBAT describe the structures and functions of

Capillary(nutrient & waste)

Exchange withTissue (Body) Cells