স্পেশাল বিসিএস (স্বাস্থ্য) - লং কোর্স

Collections of neuronal cell bodies (somata) outside the central nervous system is Ganglia & inside CNS is Nuclei.

Astrocyte mainly takes part in formation of blood-brain-barrier

Arachnoid and pia mater together called leptomeninges

Foramen of Monro connects Lateral ventricle to third ventricle

Spinal cord gives rise to 31 pairs of spinal nerves

The term basal nucleus is applied to a collection of masses of Gray matter situated within each cerebral hemisphere. They are the corpus striatum, the amygdaloid nucleus, and the claustrum.

Molecular layer (plexiform layer). This is the most superficial layer; It consists mainly of a dense network of tangentially oriented nerve fibres. These fibres are derived from the apical dendrites of the pyramidal cells and fusiform cells, the axons of the stellate cells, and the cells of Martinelli.

Anosmia refers to total loss of sensation of smell, i.e., inability to recognize or detect any odor.

Circumvallate papillae-largest & contains most taste bud

Typical sweat glands are of the merocrine variety. Their number and size vary in the skin over different parts of the body. They are most numerous in the palms and soles, the forehead and scalp, and the axillae.

The substance of the tongue is made up chiefly of skeletal muscle supported by connective tissue. The muscle is arranged in bundles that run in vertical, transverse and longitudinal directions. This arrangement of muscle permits intricate movements of the tongue associated with the chewing and swallowing of food, and those necessary for speech.

Filiform papillae: They are the most numerous papillae. They are small and conical in shape. The epithelium at the tips of these papillae is keratinised. It may project in the form of threads.

The middle ear is a small space placed deep within the petrous part of the temporal bone. It is also called the tympanum.

Filum terminale is a thin fibrous cord form by pia mater

Broca’s motor speech area (Broadman area)-44, 45

Oculomotor, Abducent & ophthalmic nerve passes through Superior orbital fissure

Vestibulocochlear nerve is originated from PM junction.