These nodes strain the lymph which passes through them. Lymph nodes trap germs and cells of the immune system which gives information about the... View Article
They are present in different points along the lymph vessels, often are grouped. Except for the spinal cord and the brain, there are groups of... View Article
The lymph flows from the small lymph vessels into the larger lymph vessels which head towards one of the two lymphatic ducts. The lymph filters... View Article
These are masses of lymphoid tissues implanted in the mucous membranes of the pharynx. It is covered by epithelium, with crypts. These crypts... View Article
It is a single unpaired structure in the mediastinum and the neck area. It is involved in the primary setup of the immune system of the body, the... View Article
The lymph is not under the influence of pressure. It is pushed passively. The lymph vessels are thin-walled, valved structures carrying lymph.... View Article
Lymphatic capillaries - It originates in the tissues as small blind-ended sacs. They are found adjacent to blood capillaries. Much like blood... View Article
The urethra carries urine from the bladder to the outside. External urethral sphincter - composed of skeletal muscle fibres which surround the... View Article
In the first stage of removal, blood enters the kidneys. The blood here flows via small arteries. Gradually, it arrives at a group of capillaries... View Article
As it fills with urine, the urinary bladder distends The stretch receptors in the walls of the bladder are triggered and signal micturition... View Article
Previously known as acute renal failure, acute kidney injury is a progressive loss of renal function which is typically distinguished by oliguria... View Article
The main lacrimal gland occupies the superior temporal anterior portion of the orbit. It comprises ducts that open into the palpebral conjunctiva... View Article
Retina is a photographic film of the eye which converts light energy into electrical energy to be transmitted to the brain. It comprises two... View Article
It is the process where the relaxation of zonular fibres enables the lens to become more globular, hence increasing its refractive power. With... View Article
Like the cornea, the lens is transparent. It is avascular and derives nourishment from the aqueous. They possess a thick elastic capsule that is... View Article
The vitreous comprises a three-dimensional network of collagen fibres with interspaces filled with polymerised hyaluronic acid molecules. This... View Article
Corneal transparency is due to physiological and anatomical factors. The anatomical factors are- Descemet’s and Bowman’s - homogeneity of... View Article
Eyelids are involved in - Protects eye from mechanical trauma, extremes of bright light and temperature Maintaining normal precorneal tear... View Article
The eye has three intraocular fluids - Aqueous humour Vitreous humour Blood In addition to its typical function, blood is functional in... View Article