Read the following statements
(i) The cardioinhibitory centre of medulla oblongata is connected with the heart through vagus nerve
(ii) Carotid sinus is the chemoreceptor located in the wall of external carotid artery .
(iii) The signals from carotid sinus are tramsmitted through Hering's nerve to the glossophyrangeal nerve and then to the medulla oblongata.
(iv) Adrenaline has a greater effect on heart activity than nonadrenaline.
Which of these are correct ?

Options

A. (i) ,(ii) & (iii)
B. (i),(iii) & (iv)
C. (i) & (iii)
D. All are correct

Answer

B

Explanation

Carotid sinus is the baroreceptor located in the wall of internal carotid artery.