Question

Regarding the human brain (select the MOST CORRECT statement):

		The primary motor cortex is located in the frontal lobe.
		The diencephalon is composed of two structures, the cerebral cortex and the thalamus.
		Sensory information from the skin of the big toe is relayed via ascending spinal tracts to the primary motor cortex
		Both a) and b) are correct and c) is incorrect.
		a), b) and c) are all correct.

Human sensory systems (select the MOST CORRECT statement):

		Sensory information for both vision and touch is relayed to separate regions of the cerebral cortex, but in both cases relies on ascending spinal tracts to reach the brain.
		The location of a stimulus such as touch is coded by the amplitude of the action potentials in the afferent neuron.
		Baroreceptors in the aortic arch respond to changes in blood pressure that are sensed by mechanoreceptors.
		Both a) and b) are correct and c) is incorrect.
		a), b) and c) are all correct.

Answer 1

The motor cortex is located in the rear portion of the frontal lobe, just before the central sulcus (furrow) that separates the frontal lobe from the parietal lobe. The motor cortex is divided into two main areas, Area 4 and Area 6.

The diencephalon, one of the most highly developed structures of the human central nervous system, consists of two major components: the thalamus, a key structure for transmitting information to the cerebral hemispheres; and the hypothalamus, which integrates the functions of the autonomic nervous system and endocrine .so it is wrong

A sensory pathway that carries peripheral sensations to the brain is referred to as an ascending pathway, or ascending tract. The various sensory modalities each follow specific pathways through the CNS. Tactile and other somatosensory stimuli activate receptors in the skin, muscles, tendons, and joints throughout the entire body. However, the somatosensory pathways are divided into two separate systems on the basis of the location of the receptor neurons. Somatosensory stimuli from below the neck pass along the sensory pathways of the spinal cord, whereas somatosensory stimuli from the head and neck travel through the cranial nerves—specifically, the trigeminal system.. it reach the sensory cortex so it is wrong

So only option a is correct