Question

Identify the structure and list their functions

Brain

Medulla oblongata

Pons

Cerebrum

cerebellum

Cerebral aqueduct

Thalamus

Pineal gland

Hypothalamus

Pituitary gland

Infundibulum

Gyrus

Sulcus

Lateral ventricles

4 th ventricle

longitudinal fissure

Ear

Pinna/ Auricle

Vestibules

Stapes

Malleus

Incus

External auditory canal

Eustachian tube

Tympanic membrane

Semicircular canals

Cochlea

Vestibulocochlear nerve

Eyes

Tarsal glands

Four rectus muscles with names

Two oblique muscles with names

Sclera

Cornea

Fovea

Iris

Pupil

Ciliary body

Retina

Blind spot

Lens

Olfaction

Cribiform plate of ethimoid bone

Olfactory bulb

Olfactory nerve

Sheep brain

Olfactory bulb

Olfactory tract

Optic chiasm

Optic nerve

Optic tract

Longitudinal fissure

Lateral ventricles

4th ventricle

vermis

Answer 1

Brain -

Medulla oblongata - it is part of brain stem, responsible for the involunatary funtion, like  vomiting to sneezing.

Pons - it is also part of brain stem. It conatins various vital centres of body like, respiratory centre.

Cerebrum - It is the laregest part of the brain, having right and left hemisphere. It is for higher function. Like conciouness, orientation, cognition and also sensory and motor corte.

cerebellum - It is posteriorly located part of brainstem. helps in co-ordination of movement.

Cerebral aqueduct - It is channel connecting 3rd and 4th ventricle. It helps in passage of CSF.

Thalamus - two oval structures made up of gray matter at the base of the cerebrum. They act as relay nucleus for the various singnal.

Pineal gland - small pea shaped gland in the brain. Regulates hormone melatonin for circadian rhythm.

Hypothalamus - located below thalamus and above piturtary. Its hormone controle secretion of pitutary hormone.

Pituitary gland -  pea-sized gland that plays a major role in regulating vital body functions. It is master endocrine gland of the body. It secretes GH, LH, FSH, TSH, ACTH.

Infundibulum - It is stalk of pitutary gland. It connects posterior pitutary to hypothalamus.

Gyrus - Folds over the suface of brain.

Sulcus - Grooves in the surface of brain cortex. Helps in increasing surface area of brain.

Lateral ventricles - These are two cavities in the cerebral hemisphere. It contains CSF,  clear, watery fluid that provides cushion to brain.

4 th ventricle - 2 Lateral ventricle, 3rd ventricle and 4th ventricle. These are cavities in Forebrain, Midbrain and hindbrain. All are connected to each interventricular foramen and aqueduct.

longitudinal fissure - deep grove on the surface of brain. It seperate the two cerebral hemisphere.

Ear

Pinna/ Auricle - It forms the outer ear.

Vestibules - It is part of inner ear, for balance.

Stapes - Smallest ear ossicle. for amplifying & transmitting sound.

Malleus - Hammer shaped Ear ossicle in middle ear.

Incus - shaped like an anvil, and has a long and short crus extending from the body

External auditory canal - It is outer cartilagenous and inner bony. function in transmitting the sound to middle ear.

Eustachian tube - tube connecting pharynx to middle ear. Provides ventilation to inner ear.

Tympanic membrane - Thin membrane between external ear and middle ear.

Semicircular canals - Are linear for angular acceleration detection.

Cochlea - sensory organ for hearing.

Vestibulocochlear nerve - connect the inner ear to brain.