Neural Control And Coordination

The sense of smell is perceived by of fact region of forebrain.

There are a pair of solid club-shaped structures present on the anterior surface of cerebrum known as olfactory lobes. These lobes have an olfactory bulb and an olfactory tract for relaying sense of smell to temporal lobes

Answer (c) Acetylcholine

Organ of Corti is the sensory part of the cochlea in the inner ear, which responds to sound.

Answer (d) Thyroxine

Parasympathetic ganglia are the ganglia of autonomic nervous system composed of cholinergic neurons receiving afferent fibres originating from preganglionic visceral motor neurons in either the brainstem or the middle sacral segments of spinal cord. There are four paired parasympathetic ganglia of head and neck-pterygopalatine ganglion (found in pterygopalatine fossa), submandibular ganglion (located on hyoglossus muscle), otic ganglion (located immediately below the foramen ovale in the infratemporal fossa )and ciliary ganglion (located in the posterior orbit).