NEET BIOLOGY

HUMAN PHYSIOLOGY

CONTROL AND COORDINATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is not a reflex action
A
Swallowing
B
Coughing
C
Knee jerk
D
Closing of eyes on flashing light
Explanation: 

Detailed explanation-1: -Sweating is not a reflex action. It is primarily a means of temperature regulation. But, salivation on seeing food, hand withdrawal because of the needle and blinking of the eyes due to bright light are all examples of reflex actions.

Detailed explanation-2: -Swallowing causes reflex closure of the glottis, elevation of the larynx, and a transient cessation of respiration. These complex motor acts implicate that numerous muscles are activated during the act of swallowing.

Detailed explanation-3: -There are different types of reflexes, including a stretch reflex, Golgi tendon reflex, crossed extensor reflex, and a withdrawal reflex.

Detailed explanation-4: -Coughing, yawning and blinking of eyes are examples of reflex actions.

There is 1 question to complete.