NURSING ANM AND GNM

NURSING EXAM QUESTIONS

PATHOLOGY AND GENETICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What part of the body senses rotational movement?
A
Semicircular canals
B
Otolithic canals
C
Nystagmus
D
Receptor
Explanation: 

Detailed explanation-1: -Whereas the otolith organs are primarily concerned with translational movements, the semicircular canals sense head rotations, arising either from self-induced movements or from angular accelerations of the head imparted by external forces.

Detailed explanation-2: -Three semicircular canals, the anterior, posterior and horizontal canals, sense rotational movements. These two complimentary signals are necessary for the brain to understand the range of physical situations that we experience, probably the most fundamental of which is to work out which way is up.

Detailed explanation-3: -Superior semicircular canal The superior or anterior semicircular canal is a part of the vestibular system and detects rotations of the head in around the lateral axis, that is, rotation in the sagittal plane. This occurs, for example, when nodding one’s head.

There is 1 question to complete.