The second heart sound is due to closure of the AV valves

Indicate whether the statement is true or false


F

Anatomy & Physiology

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What is the advantage of transmitting information by an electrical synapse?

A. It is chemical free. B. It is hormone free. C. There is fast recovery. D. There is less toxicity.

Anatomy & Physiology

How does the renal countercurrent multiplier mechanism allow the creation of a concentrated urine?

A. It transports NaCl from the medullary interstitium into the collecting duct, which directly increases the osmolarity of the urine. B. It transports urea from the medullary interstitium into the collecting duct, which directly increases the osmolarity of the urine. C. By concentrating NaCl in the renal medullary interstitium, it allows water to be reabsorbed from the collecting ducts when vasopressin is present. D. By pumping NaCl and urea into the ascending limb of the loop of Henle, it raises the solute load, which turns into a concentrated urine once water is extracted from the collecting duct. E. When anti-diuretic hormone is present, it stimulates the pumping of NaCl from the medullary interstitium and water follows, concentrating the urine.

Anatomy & Physiology

Which of the following organs drains its blood through the hepatic portal system?

A) stomach B) suprarenal gland C) uterus D) urinary bladder E) kidney

Anatomy & Physiology

Which of the following is a reason for the lower marriage rate among African Americans?

A. There is unequal gender ratio among blacks, with men being the majority. B. African American men face obstacles in finding employment. C. Most African American women prefer not to get married. D. African Americans are more concerned with building their careers than with starting families.

Anatomy & Physiology