Choose the appropriate letter below to make the statements true. (a) stimulates
ID: 3516615 • Letter: C
Question
Choose the appropriate letter below to make the statements true.
(a) stimulates or increase
(b) decreases or inhibits
(c) has no effect on
- Decreased cardiac output ___ the mean systemic arterial blood pressure.
- Decreased venous radius ___ the venous return.
- Increased arteriolar radius ___ the total peripheral resistace.
- Decreased O2, increased CO2, increased acid, and increased K+ concentrations in the skeletal muscle ___ the radius of the arterioles supplying this skeletal muscle.
- Increased total peripheral resistance ___ the mean systematic arterial blood pressure.
- Increased parasympathetic nerve activity ___ the heart rate.
- Decreased blood pressure ___ the rate of firing in afferent nerves arising from the baroreceptors.
-Increased venous return ____ the end-diastolic volume.
Explain reasoning for each
Explanation / Answer
1. Decreased cardiac output decreases the mean systemic arterial blood pressure.
(b) decreases
2. Decreased venous radius decreases the venous return.
(b) decreases
3. Increased arteriolar radius increases the total peripheral resistance.
(a) increases
4. Decreased O2, increased CO2, increased acid and increased K+ concentrations in the skeletal muscle Increases the radius of the arterioles supplying this skeletal muscle.
(a) increases
5. Increased total peripheral resistance decreases the mean systematic arterial blood pressure.
(b) decreases
6. Increased parasympathetic nerve activity decreases the heart rate.
(b) decreases
7. Decreased blood pressure decreases the rate of firing in afferent nerves arising from the baroreceptors.
(b) decreases
8. Increased venous return increases the end diastolic volume.
(a) increases