Biology
Please write some notes about high and low blood pressure:
- Renin-angiotensin-aldosterone Made Simple
The body has many systems that work together in order to maintain homeostasis. The renin-angiotensin-aldosterone pathway is no different. It has 3 functions: (1) to maintain a proper blood pressure/blood flow, (2) to maintain the right concentration of...
- #83 Question 6
The diagram below shows pressure changes in the left atrium and left ventricle of the heart and the aorta during the cardiac cycle. (a) Calculate how many heart beats there will be in one minute. (2 marks)(b) (i) On the diagram, indicate the point at...
- # 44 The Circulatory System - Blood Vessels
The mammalian circulatory system is a closed double circulation, consisting of a heart, blood vessels and blood. The heart produces high pressure --> blood moves through the vessels by mass flow. The mammalian...
- #43.2 Transport In Mammals - Syllabus 2016
8.1 The circulatory system 8.2 The heart As animals become larger, more complex and more active, transport systems become essential to supply nutrients to, and remove waste from, individual cells. Mammals...
- Comparison Between Artery And Vein
Artery Vein 1. Direction of blood flow is from heart to other body parts Direction of blood flow is from body parts to heart 2. Carries oxygenated (pure)...
Biology
Homework Blood Pressure
Please write some notes about high and low blood pressure:
- What are the risks of high and low blood pressure
- How can blood pressure be changed, for example how can high blood pressure be reduced?
- Renin-angiotensin-aldosterone Made Simple
The body has many systems that work together in order to maintain homeostasis. The renin-angiotensin-aldosterone pathway is no different. It has 3 functions: (1) to maintain a proper blood pressure/blood flow, (2) to maintain the right concentration of...
- #83 Question 6
The diagram below shows pressure changes in the left atrium and left ventricle of the heart and the aorta during the cardiac cycle. (a) Calculate how many heart beats there will be in one minute. (2 marks)(b) (i) On the diagram, indicate the point at...
- # 44 The Circulatory System - Blood Vessels
The mammalian circulatory system is a closed double circulation, consisting of a heart, blood vessels and blood. The heart produces high pressure --> blood moves through the vessels by mass flow. The mammalian...
- #43.2 Transport In Mammals - Syllabus 2016
8.1 The circulatory system 8.2 The heart As animals become larger, more complex and more active, transport systems become essential to supply nutrients to, and remove waste from, individual cells. Mammals...
- Comparison Between Artery And Vein
Artery Vein 1. Direction of blood flow is from heart to other body parts Direction of blood flow is from body parts to heart 2. Carries oxygenated (pure)...