341.

The visible coloured portion of the eye is

• Retina

• Iris

• Pupil

• Choroid

• Choroid

Read the statements about human neural system and find the wrong one

• The CNS includes the brain and the spinal cord

• The PNS is divided into somatic and autonomic neural system

• The somatic neural system is classified into sympathetic and parasympathetic neural system

• The autonomic neural system transmits impulses from the CNS to the involuntary organs and smooth muscles

• The autonomic neural system transmits impulses from the CNS to the involuntary organs and smooth muscles

Which part of the brain is responsible for thermoregulation?

• Hypothalamus

• Corpus callosum

• Medulla oblongata

• Cerebrum

Which of the following statements is correct?

• Cornea consists of dense connective tissue of elastin and can repair itself.

• Cornea is convex, transparent layer which is highly vascularised.

• Cornea consists of dense matrix of collagen and is the most sensitive portion the eye.

• Cornea is an external, transparent and protective proteinacious covering of the eye-ball.

Organ of Corti is found in

• heart

• kidneys

• inner ear

• nasal chamber

If medulla oblongata is destroyed then which of the following functions will be effected

• No thermoregulation

• No vision

• No memory

• No response when pricked with needle