1. Which of the following tunic is found in every type of blood vessel? A. Tunic

Question

1. Which of the following tunic is found in every type of blood vessel?
A. Tunica intima
B. Tunica media
C. Tunica externa

2. The absolute refractory achieved by cardiac muscle fibers is due to the
A. Calcium channels remaining open longer allowing calcium to move into the cell
B. Increased membrane permeability to move potassium ions into of the cell
C. Movement of sodium ions into the cell
D. Movement of sodium ions out of cell

3. Which of the following is greatest?
A. Cardiac output when venous return decrease
B. Cardiac output when end diastolic volume decreases
C. Cardiac output when end systolic volume increases
D. Cardiac output when preload decreases

Explanation / Answer

1.A Tuica intima

It is present in all the blood vessels. i.e arteries, vein and capileries.

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

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