The ciliary body

I. Association areas, which are mainly motor in function, are responsible for functions like intersensory associations, memory, and communication. II. Midbrain and hindbrain forms the brain stem. III. The ciliary body itself continues forward to form a pigmented and opaque structure- iris. IV. The membranous labyrinth is filled with a fluid called endolymph. How many of the given statements are correct?

Muscles of iris and ciliary body are derived from

Describe the location and the role of ciliary body in the human eye.

State the exact location of the following structures: Ciliary body

Study the following and identify the incorrect statements (i) Muscles of iris and ciliary body are smooth muscles of mesodermal origin (ii) Slow and sustained involuntary contraction of smooth muscles are called spasms (iii) Quiescent mononucleate myogenic cells of skeletal muscles are called pericytes (iv) Skeletal muscles fibre is multinucleate and is a syncytium

Draw a diagram of the vertical section of human eye and label the following parts : (i) cornea, (ii) iris, (iii) aqueous humour, (iv) retina, (v) ciliary body, (vi) fovea centralis, (vii) choroid, (viii) pupil, and (ix) lens.

Muscles of Iris & Ciliary body originate :-

Given below is an example of a certain structure and its special functional activity. On a similar pattern fill in the blanks with suitable functions: Example : Chloroplast and Photosynthesis : Ciliary Body and____________

[A] : Accomodation in the bird's eye is con- trolled by the ciliary apparatus. [R]: It involves deformation of retina.

Body of mass M is much heavier than the other body of mass m,.The heavier body with speed v collides with thelighter body which was at rest initially elastically The speed of lighter body after collisioin is