13 public questions tagged with this topic.
**Diastolic pressure occurs when the heart relaxes**, while **systolic pressure** occurs during ventricular contraction. This follows from NCERT principle where relation explains outcome clearly for students.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Biology - Zoology portion covering relevant system and function, Topic: Structural organization and physiology.
Atrial natriuretic factor (ANF) is secreted by the heart and lowers blood pressure by promoting sodium excretion.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Endocrine Disorders
The juxtaglomerular apparatus (JGA) releases renin to regulate blood pressure by activating the renin-angiotensin system.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Regulation of Kidney Function - RAAS ADH ANF
ANF reduces blood pressure by promoting sodium excretion and inhibiting the renin-angiotensin system.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Regulation of Kidney Function - RAAS ADH ANF
Renin converts angiotensinogen into angiotensin I, which is then converted to angiotensin II, helping to increase blood pressure.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Regulation of Kidney Function - RAAS ADH ANF
The JGA releases renin, which helps regulate blood pressure by activating the renin-angiotensin mechanism.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Regulation of Kidney Function - RAAS ADH ANF
ADH regulates water reabsorption in the kidneys, helping to concentrate urine.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Urine Formation - Reabsorption and Secretion
The normal blood pressure is about 120/80 mmHg, not 90/60 mmHg (which indicates low blood pressure).
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Circulatory System - Comparative and Evolutionary Aspects
Diastolic pressure occurs when the heart relaxes, while systolic pressure occurs during ventricular contraction.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Circulatory System - Comparative and Evolutionary Aspects
The aorta has the highest blood pressure as it receives blood directly from the left ventricle.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation ECG and Blood Vessels
Diastolic pressure occurs when the heart relaxes, while systolic pressure occurs when the heart contracts.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation ECG and Blood Vessels
Diastolic pressure occurs when the heart relaxes, while systolic pressure occurs when the heart contracts.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation ECG and Blood Vessels
