- Sperm Motility grading.

Sperm Motility grading.

(Human sperm stained for semen quality testing in the clinical laboratory.)

• Grade 1: sperm are immotile meaning that they fail to move at all.
• Grade 2: sperm are labeled as non-progressive motility because they do not move forward despite the fact that they move their tails.
• Grade 3: sperm (non-linear motility) also move forward but tend to travel in a curved or crooked motion.
• Grade 4: sperm are known to have progressive motility meaning they are the strongest and swim fast in a straight line.

Ideal sperm quality dictates that a man should have grade 3 or 4 sperm in order to fertilize an egg.

 Dr Ibrahim
Return to list of medical grades (click here) 

- Saint's triad.

Saint's triad.

It is a common association of:-

1. Gall stones.
2. Hiatal Hernia
3. Diverticulosis coli.

Dr Ibrahim

Return to other triads here.

unhappy triad - O'Donoghue's triad

unhappy triad

or O'Donoghue's triad

or terrible triad

Twisting force in a weight bearing knee joint causes injury to;-

1. Medial collateral ligament.
2. Anterior cruciate ligament.
3. Medial meniscus.

Dr Ibrahim

Return to other triads here.

- Anderson's triad.

Anderson's triad

The association of :-

1. Cystic fibrosis
2. Celiac disease 
3. Vitamin A deficiency

Dr Ibrahim

 

Return to other triads here.