ANIMAL BEHAVIOR
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Blinking when something gets right in your face
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A spider spinning a web
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A sea turtle returning to where it was hatched to mate
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Detailed explanation-1: -Contact with the cornea initiates 2 reflexes: blink reflex (corneal reflex) and tear production. The corneal blink reflex is caused by a loop between the trigeminal sensory nerves and the facial motor (VII) nerve innervation of the orbicularis oculi muscles.
Detailed explanation-2: -It is an involuntary action of the eyes also called corneal reflex. Hence it is a reflex action. The cornea is stimulated when it is contacted by a foreign body. The involuntary response is believed to be a survival-related function to protect the eyes from stimuli.
Detailed explanation-3: -The reflex occurs at a rapid rate of 0.1 seconds. The purpose of this reflex is to protect the eyes from foreign bodies and bright lights (the latter known as the optical reflex). The blink reflex also occurs when sounds greater than 40–60 dB are made.
Detailed explanation-4: -The pupillary light reflex is an autonomic reflex that constricts the pupil in response to light, thereby adjusting the amount of light that reaches the retina. Pupillary constriction occurs via innervation of the iris sphincter muscle, which is controlled by the parasympathetic system.