Positioning. Multiple positions may be used to accomplish a digital rectal examination. The easiest for the examiner is to have the patient tuck the knees up to the chest, either in the dorsal lithotomy position or the lateral recumbent position.
Answer:
True
Explanation:
Pacemaker cells, unlike other neurons in the body, can depolarized themselves (and therefore can fire action potentials) without the need of an external innervation of the autonomic nervous system.
Each class of pacemaker cells has its own intrinsic rate.
For example, sinoatrial node rate is 60-100 bpm (the normal heart frequency).
The atrioventricular node is also part of the electrical conduction system of the heart. When the sinoatrial node fails, atrioventricular node takes the lead (40-60 bpm).
Monkeys
Gecko
Starfish
Fish
Answer:
The correct answer is E.
Explanation:
The main function of <u>atrial natriuretic peptide</u> (ANP) is to reduce extracellular fluid volume by increasing renal sodium excretion.
<u>Aldosterone</u> is a steroid hormone, produced by the adrenal cortex, that is part of the renin-angiotensin-aldosterone system which helps to maintain blood pressure. Aldosterone increases reabsorption of sodium and potassium excretion, and as a result an increase in extracellular fluid volume and in blood pressure.
In conclusion, <em>ANP reduces aldosterone secretion.</em>
