You need to know thefactors that affect blood flow through the cardiovascular system: blood pressure, blood volume, resistance, disease and exercise. You need to knowhow these factors affect blood flow.

You are watching: Which best describes what people could buy on credit in the 1920s?


The rate at which blood flows through the human body changes in response to many factors. Which statement describes one of these factors and its effect on blood flow?

A. A high viscosity of blood causes an increased resistance in the blood vessels and leads to slow blood flow.

B. A low blood pH decreases the rate of diffusion through the blood vessels and leads to slow blood flow.

C. The changing of the shape of red blood cells to a crescent shape decreases resistance and lead to a faster blood flow.

D. The narrowing of blood vessels increases pressure and leads to a faster blood flow.

CLICK HERE FOR ANSWER


Example Two


Which of the following factors would most directly affect blood flow through the circulatory system?

A. blood pressure

B. blood sugar

C. respiratory rate

D. outside temperature

CLICK HERE FOR ANSWER


Example Three


What causes blood pressure?

A. cholesterol in the blood

B. stress that exercise puts on heart muscle

C. contraction of the ventricles in the heart

D. removal of oxygen from the blood

CLICK HERE FOR ANSWER


Example Four


Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise?

*

A.

B.

C.

D.

CLICK HERE FOR ANSWER


Example Five


Which of the following best describes the connection between cardiovascular disease and age?

A. As people age, their blood vessels become more elastic leading to less cardiovascular disease.

B. As people age, the heart becomes more efficient with each pump, increasing cardiac output.

C. As people age, blood pressure decreases leading to more cardiovascular disease.

D. As people age, plaque builds up in the arteries increasing vessel resistance, which leads to disease.

See more: How Many Inches Is Five Feet, How Many Inches Is 5 Feet 4 Inches

CLICK HERE FOR ANSWER


*

Blood Pressure, Flow, & Resistance
*

In Your Book


General Biology - Chapter 30, pg. 732

Honors Biology - Chapter 33, pg. 784


Additional Activity Links


Virtual Lab: Blood Pressure - Glencoe


Escambia County School District


75 North Pace BlvdPensacola, Florida 32505(850) 432-6121 Phone


2021-2022 District Summary Budget (PDF)

2021-2022 Supplemental Budget Information (PDF)

2021-2022 Proposed Tentative Budget (PDF)

Accessibility

Escambia's Implementation Plans and Reports

Florida Value Added Model (VAM) and Fiscal Transparency Tool

Policy of Nondiscrimination (PDF)

Public Records Process (PDF)

Title IX


*

*

*

Family Empowerment Scholarship(850) 469-5580schoolchoice
ecsdfl.us


Make changes to the header and footer on the "Edit Header and Footer" tab on the left.