Practice free Zoology NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
What is ciliary body?
The ciliary body is the thickened anterior part of the choroid. It contains the ciliary muscle and the ciliary processes, which help in the accommodation of the lens and the production of aqueous humor.
Iris is a continuation of
The iris is a continuation of the ciliary body. Both structures are part of the uvea, which is the middle vascular layer of the eye, consisting of the iris, ciliary body, and choroid.
Which type of muscle are present in ciliary body?
which basic Colour Photoreceptors are Present in human eye?
The human eye contains three types of color photoreceptors known as cones, which are sensitive to red, green, and blue light. These three colors combine in various ways to allow us to perceive a wide spectrum of colors.
Deficiency abnormality of which of the following is responsible for Alzheimer's disease?
Alzheimer's disease is associated with a deficiency in acetylcholine, a neurotransmitter that plays a critical role in memory and learning. Reduced levels of acetylcholine in the brain are linked to the cognitive decline seen in Alzheimer's patients.
What is correct for the “number†of vagus Cranial nerve?
The vagus nerve is also known as the 10th cranial nerve (CN X). It is a part of the cranial nerves which begin in the brain and travel to various parts of the body. The vagus nerve is particularly important for its role in the parasympathetic nervous system, which oversees a range of functions including heart rate and digestion.
At which of the following Structure Sensitivity of retina is highest?
The most light sensitive part of retina is fovea or yellow spot
Assertion (A) and Reason( R) type questions
Statement A : Injury to interior Colliculi can impair hearing
Statement R : center to control auditory sense are lying in it
The inferior colliculi are part of the midbrain and play a crucial role in the auditory pathway. An injury to the inferior colliculi can impair hearing because they are involved in the processing of auditory information. Therefore, both the assertion and the reason are correct, and the reason provided is the correct explanation for the assertion.
Assertion (A) and Reason( R) type questions
Statement A: cochlea can be called true organ of hearing
Statement R : Organ of corti as present in it
The cochlea is indeed called the true organ of hearing because it contains the Organ of Corti, which houses the hair cells responsible for converting sound vibrations into electrical signals that can be interpreted by the brain. Thus, both the assertion and the reason are correct, and the reason correctly explains the assertion.
Assertion (A) and Reason( R) type questions
Statement A: The movement (vibration) of basilar membrane
is necessary for hearing
Statement R : movement of basilar membrane separates sensory hair from tectorial membrane
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The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.