Chet has had nerve damage to his right leg, so it is getting no autonomic innerv

Question

Chet has had nerve damage to his right leg, so it is getting no autonomic innervation. When Chet undergoes sympathetic activation to his left leg:

A.        Will the diameter of the vessels in Chet’s left leg increase, not change, or decrease?

B.        Will the quantity of blood flowing through Chet’s left leg change more, the same as, or less than the quantity flowing through his right leg?

C.        Will the quantity of blood flowing through his left leg increase, not change, or decrease?

D.        Will the pressure of blood flowing through Chet’s left leg change more, the same as, or less than the quantity flowing through his right leg?

E.         Will the pressure of blood in his left leg increase, not change, or decrease?

F.         Suppose Chet starts crutching his way across campus, using his left leg a lot. What effect, if any, will that have the diameter of vessels in his left leg?

Explanation / Answer

Sympathetic nervous system delete the blood vessel in skeleton muscles, heart, brain like vital organs.

A- diameter of blood vessel increases in left leg

B- quantity of blood in left leg is more than the right leg because the dilated blood vessel conduct more blood then right leg

C- yes the amount of blood flow increases in left leg because the right leg is unable to flow large amount of blood

D- pressure of blood flow increases in left leg as compared to right leg so more blood flow through left.

E- blood pressure of left left leg decreases because the blood vessels are dilated while in right leg the blood vessels are not dilated so they have high pressure

F -   due to excessive use of left leg the diameter of blood vessels in left leg increases and muscular activity also increases hence the thickness and strength of left leg increases while right leg decreases

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.