Question

1. Using the template below, fill in the boxes corresponding to the letters on the diagram with what would happen if MAP is elevated due to abnormally high blood volume. To get full credit, include the role of the heart, the kidney, aortic and carotid baroreceptors, the HT/PPG, and the CVCC. Include how the autorhythmic cells, pumping cells, vascular circular smooth muscle change their activity, and indicate whether the kidneys conserve or get rid of blood volume. Hormones to include are ANP, ADH, Aldosterone, EPI, ANGII and Ach. Note whether levels of hormones increase or decrease in the blood. (17 pts) Sensors Integrating Center(s) Controlled variable High MAP High MAP The HONEY Effectors

Please include all hormones and everything required in the question! Thanks!

Hormones: SA node(AR cells), myocardial pumping cells, kidney, vascular smooth muscle

Answer 1

• a) Vessel wall stretch
• b) Volume receptors of the atria
• c) Baroreceptors of aortic sinus and carotid body
• d) Nitric oxide release
• e) Atrial natriuretic peptide
• f) sympathetic autonomic nervous system
• g) parasympathetic autonomic nervous system
• h) Reduce the force of contraction of the cardiac muscle
• i) Reduce heart rate and reduce rate of conduction through AV node
• j) reduced cardiac output
• k) reduced-sodium resorption at the collecting duct
• l) inhibition of release of aldosterone
• m) inhibition antidiuretic hormone (ADH)
• n) inhibition of renin activity
• o) vasodilatation
• p) reduced peripheral resistance