When the eyes are open, what sensory organs provide information needed to maintain equilibrium?

Q: Define power of accommodation?

A: The eye is the organ of the vision. The structure of the eye consists of the iris, corona, retina,…

Q: What types of stimuli to neurons in the primary visual cortex respond to?

A: The primary visual cortex is located in the occipital cortex. Different types of neurons respond to…

Q: What is the function of theiris and of the pupil?

A: The eye is called an organ of sight. It detects light and the signals are sent to the brain. The…

Q: Which cells are capable of perceiving the stimuli?

A: Stimulus - It is a noticeable change in the environment of an organism either externally or…

Q: What is the spiral organ, and where is it located?

A: The ear is divided into three parts, the outer pinna layer, the middle tympanic layer and the inner…

Q: What is accommodation in the eye? How are muscles involved in this process?

A: The process by which certain muscles (called ciliary muscles) work, to change the central length of…

Q: When the eyes are closed, what sensory organs provide such information?

A: The active maintenance of equilibrium requires appropriate sensory functions. Balance is achieved…

Q: Distinguish between the functions of the maculae and the crista ampullaris.

A: Inner ear is a part of the ear that contains organs of the senses of hearing and equilibrium. The…

Q: What is the major structure that the optic tract goes through?

A: The optic tract is an important component of the visual system of the brain. It is composed of the…

Q: What are the organs of Hearing ?

A: Hearing, or auditory perception can be defined as the ability to perceive the sounds by detecting…

Q: what is the fucntion of the semicircular canals?

A: Semicircular canals are three tiny, fluid-filled tubes that help to keep balance.

Anatomy and Physiology of Special Sensory Organs

Sensory organs can be labeled as special sensory structures that permit sight, hearing, odor, and flavor. Sensory structures permitting proprioception, touch, thermal, and pain perception can be classified as more advanced sensory organs. The sensory neurons are trained to find out modifications in the external and internal conditions so that a person's body can react to that change. A stimulus is the first signal that is recognized by any sensory receptor of the body. Stimulus is an impulse generated when there is a change in the surroundings of a person. For example, a heated environment will alert the brain through the thermal sensory organs and generate a reflex accordingly.

Sensory Receptors

The human sensory system is one of the most complex and highly evolved structures, which processes a myriad of incoming messages. This well-coordinated system helps an organism or individual to respond to external stimuli, appropriately. The sensory receptors are an important part of the sensory system. These receptors are specialized epidermal cells that respond to external environmental stimuli. These receptors consist of structural and support cells that form the peripheral unit of the receptor and the neural dendrites which receive and detect the external stimuli.