GENERAL HISTOLOGY

NERVOUS SYSTEM SPECIAL SENSE

SPINALCORD

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: -Swallowing of food is a voluntary action and hence is not a reflex action.

Detailed explanation-2: -Hyporeflexia happens when your skeletal muscles have a decreased or absent reflex response. An absent reflex response is also called areflexia. A reflex is an involuntary (automatic) action your body does in response to something. Reflexes protect your body from things that can harm it.

Detailed explanation-3: -Coughing, yawning and blinking of eyes are examples of reflex actions.

Detailed explanation-4: -Reflex arc consist of 1)Receptor or sensory organ, 2)Sensory neurine, 3)Reflex centre(brain or spinal cord), 4)Motor neurone and 5)Effector(muscle or gland).

There is 1 question to complete.