Answer:
The correct answer is A.
Explanation:
For a <u>young, healthy person, weighing 70kg,</u> resting cardiac output is approximately 5 liters per minute (assuming a heart rate of 70 bpm)
70ml stroke volume x 70 beats per minute = 5 liters/min
Stroke volume is the amount of blood ejected by the left ventricle with each contraction (normal value 70ml)
Answer:
Trace the sperm from where they are produced to where they are ejaculated.
Explanation:
<u>The testicles</u> <em>are the site of the scrotum where semen is produced</em>. <u>The epididymis</u> <em>is a coiled structure that crowns the testicles and receives immature sperm from the testicles and stores them for several days. </em><u>When ejaculation occurs</u>,<em> semen is expelled from an</em> <u>extremity of the epididymis</u> <em>into the</em> <u>vas deferens</u>. <em>Subsequently, semen travels through the</em> <u>vas deferens</u> <u>to the spermatic cord</u> <em>in the pelvic cavity beyond the ureter and behind the bladder</em>. <em>There</em>, <em>the</em> <u>vas deferens</u> <em>join with the</em> <u>seminal vesicle</u> <em>to form the ejaculatory duct, which crosses</em> <u>the prostate</u> <em>and empties into</em> <u>the urethra</u>. When ejaculation occurs, <em>rhythmic muscle movements propel sperm forward.</em>
