BIO 12 UNIT 4: Study Notes

FACTORS AFFECTING BP: HYPERTENSION AND HYPOTENSION

• HYPERTENSION: High blood pressure (mild systole > 140 BUT severe systole > 180)
• Causes: Diet (fatty foods), obesity, hormone malfunction, arteries hardening, smoking, proper functioning kidneys help regulate this increase, reduction of stress, avoiding smoking, and eating healthy are factors that help regulate/counteract hypertension
• HYPOTENSION: Very low blood pressure (systole < 100)
• Causes: Weak pumping of heart (Often genetic or hereditary), kidneys regulate BP [ensure it does not get too low], ADH (increases BP), Renin (increases BP), and Aldosterone (increases BP)--> Response/regulation factors of Hypotension (counteract effects)