What Are The Two Parts Of The Retina?
Retina is a photographic film of the eye which converts light energy into electrical energy to be transmitted to the... View Article
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What Is Accommodation?
It is the process where the relaxation of zonular fibres enables the lens to become more globular, hence increasing its... View Article
Describe The Lens.
Like the cornea, the lens is transparent. It is avascular and derives nourishment from the aqueous. They possess a thick... View Article
Describe The Vitreous Body.
The vitreous comprises a three-dimensional network of collagen fibres with interspaces filled with polymerised hyaluronic acid molecules. This can hold... View Article
What Are The Anatomical Factors Causing Corneal Transparency?
Corneal transparency is due to physiological and anatomical factors. The anatomical factors are- Descemet’s and Bowman’s – homogeneity of membranes... View Article
What Is The Role Of The Eyelids?
Eyelids are involved in – Protects eye from mechanical trauma, extremes of bright light and temperature Maintaining normal precorneal tear... View Article
What Is The Constituency Of The Choroid?
The choroid comprises the following – Bruch’s membrane – membrane on the external surface of the RPE (retinal pigment epithelium).... View Article
How Does Blood Serve As An Intraocular Fluid?
The eye has three intraocular fluids – Aqueous humour Vitreous humour Blood In addition to its typical function, blood is... View Article
What Are The Layers Of The Cornea?
There are five layers anteroposteriorly in the cornea, they are – Endothelium – single layer of cells lining the inner... View Article
What Are The Three Compartments Of The Eye?
The three compartments of the eye are – Anterior chamber – area between the iris diaphragm and cornea Vitreous chamber... View Article
How Is Negative Pressure Produced In The Ear?
As the lining membrane of the middle is a respiratory membrane, it absorbs some gases. Hence, if the Eustachian tube... View Article
Does The Ear Consist Of A Sound Conducting Mechanism Only?
Anatomically speaking, the ear comprises a sound conducting mechanism as well as a sound transducing mechanism. The sound conducting mechanism... View Article
How Is Sound Propagated From The Tympanic Membrane To The Inner Ear?
Sound is conducted from the tympanic membrane to the inner ear by three bones – the stapes, malleus and incus.... View Article
Why Would You Say The Pancreas Is Also An Exocrine Gland?
Posterior to the small intestine and Inferior to the stomach is the pancreas. The pancreas is long, irregularly-shaped glands having... View Article
Describe The Path Of Air.
Air enters the body when the mouth is closed through the nostrils or external nares. The external nares or nostrils... View Article
Give A Summary Of Events In The Gastric Functions.
The summary of events in the gastric functions are – The signals from the vagus nerve which starts gastric secretion... View Article
What Processes Take Place In The Stomach?
Following are the processes taking place in the stomach – Storage – a meal is consumed and materials are released... View Article
What Are The Structures And Regions Of The Stomach?
The various structures and regions of the stomach are – Gastroesophageal region Body of the stomach – it is here... View Article
What Are The Four Layers Of The Alimentary Canal?
The alimentary canal comprises four layers, they are as follows – Mucosa – the epithelial secretory and absorptive lining bound... View Article
Give The Simple Mechanism Of Amoeba Movement.
The mechanism of amoeba movement is – Plasmagel swells leading to pseudopodia responding to turgidity of semipermeable membrane The movement... View Article
