1.
Olfactory
Correct Answer
A. Smell
Explanation
The word "olfactory" refers to the sense of smell. Therefore, the correct answer is "smell."
2.
Optic
Correct Answer
A. Vision
Explanation
The given options are related to the term "Optic". Out of the given options, "Vision" is the most closely related term to "Optic". Optic refers to anything related to the sense of sight or the eyes, and vision is the ability to see. Therefore, "Vision" is the correct answer as it directly relates to the term "Optic".
3.
Oculomotor
Correct Answer
A. Eyeball. Focussing of lens and pupil constriction.
Explanation
The oculomotor nerve is responsible for controlling the movement of the eyeball and various eye functions. It helps in focusing the lens of the eye and constricting the pupil. This nerve allows the eye to adjust its focus to see objects at different distances and controls the amount of light entering the eye through the pupil. The given answer accurately describes the functions of the oculomotor nerve related to the eyeball.
4.
Trochlear
Correct Answer
A. Downward/outwards movement of eye
Explanation
The trochlear nerve is responsible for the downward/outward movement of the eye. This nerve controls the superior oblique muscle, which helps to move the eye in a downward and outward direction. When this nerve is functioning properly, it allows for smooth and coordinated eye movements, specifically in the downward and outward direction.
5.
Trigeminal
Correct Answer
A. Mastication. Face. Scalp. Teeth. Nose. Throat
Explanation
The given answer includes terms related to the trigeminal nerve, which is the fifth cranial nerve responsible for sensory information from the face, scalp, teeth, nose, and throat. One of the main functions of the trigeminal nerve is mastication, which refers to the process of chewing. Therefore, the answer accurately identifies the functions associated with the trigeminal nerve.
6.
Abducens
Correct Answer
B. Abduction of eye
Explanation
The term "abducens" refers to the sixth cranial nerve, which is responsible for the movement of the eye outwards, away from the nose. This movement is called abduction of the eye. The other options listed, such as face, scalp, teeth, nose, throat, hearing, and equilibrium, are not related to the abducens nerve.
7.
Facial
Correct Answer
A. Taste. Salvation. Tongue. Facial muscles.
Explanation
The given answer includes the terms "Taste," "Salvation," "Tongue," and "Facial muscles." These terms are related to the functions of the tongue and facial muscles. Taste refers to the sense of taste, which is primarily detected by the taste buds on the tongue. Salvation may refer to the ability of the tongue to help with swallowing and preventing choking. The tongue is also responsible for various movements during speech, which involves the coordination of the tongue and facial muscles. Therefore, the answer highlights the functions and roles of the tongue and facial muscles in relation to taste and speech.
8.
Vestibulocochlear
Correct Answer
A. Hearing and equilibrium
Explanation
The vestibulocochlear nerve is responsible for both hearing and equilibrium. It carries sensory information from the inner ear to the brain, allowing us to perceive sound and maintain our balance. This nerve does not have any direct involvement in the functions of the face, scalp, teeth, nose, throat, tongue movement during speech, or vision.
9.
Glossopharyngeal
Correct Answer
A. Taste. Secretions of saliva. Swallowing
Explanation
The glossopharyngeal nerve is responsible for taste sensation from the posterior third of the tongue, secretion of saliva from the parotid gland, and swallowing. It does not have any role in voice production or vision. The nerve also does not control the abduction of the eye.
10.
Vagus
Correct Answer
A. Swallowing. Monitors 02, CO2 and BP
Explanation
The vagus nerve is responsible for controlling various bodily functions, including swallowing and monitoring oxygen levels, carbon dioxide levels, and blood pressure. It does not control the downward or outward movement of the eye, smell, or hearing.
11.
Accessory
Correct Answer
A. Voice. Movement of head and shoulders.
Explanation
The given answer, "Voice. Movement of head and shoulders," suggests that the term "Accessory" refers to the actions or functions related to the voice and the movement of the head and shoulders. It implies that these are the additional or secondary functions associated with the main topic or subject mentioned in the given list of body parts and their functions.
12.
Hypoglossal
Correct Answer
A. Tongue movement during speech. Swallowing
Explanation
The hypoglossal nerve controls the movement of the tongue during speech and swallowing. It innervates the muscles of the tongue, allowing for precise and coordinated movements necessary for articulating speech sounds and manipulating food during swallowing. This nerve plays a crucial role in the production of clear speech and efficient swallowing functions.