aim: describe the structures and functions of arteries, capillaries and veins. obj: given activity...
TRANSCRIPT
![Page 1: Aim: Describe the structures and functions of arteries, capillaries and veins. OBJ: Given activity sheet SWBAT describe the structures and functions of](https://reader036.vdocument.in/reader036/viewer/2022083009/5697c00c1a28abf838cc9069/html5/thumbnails/1.jpg)
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](https://reader036.vdocument.in/reader036/viewer/2022083009/5697c00c1a28abf838cc9069/html5/thumbnails/2.jpg)
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](https://reader036.vdocument.in/reader036/viewer/2022083009/5697c00c1a28abf838cc9069/html5/thumbnails/3.jpg)
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](https://reader036.vdocument.in/reader036/viewer/2022083009/5697c00c1a28abf838cc9069/html5/thumbnails/4.jpg)
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](https://reader036.vdocument.in/reader036/viewer/2022083009/5697c00c1a28abf838cc9069/html5/thumbnails/5.jpg)
Capillary(nutrient & waste)
Exchange withTissue (Body) Cells