|sperm morphology 4%||0.19||0.7||9819||45|
Sperm morphology results are reported as the percentage of sperm that appear normal when semen is viewed under a microscope. Normal sperm have an oval head with a long tail. Abnormal sperm have head or tail defects — such as a large or misshapen head or a crooked or double tail.What causes low morphology sperm?
Environmental causes. Extended exposure to benzenes, toluene, xylene, herbicides, pesticides, organic solvents, painting materials and lead might contribute to low sperm counts. Heavy metal exposure. Exposure to lead or other heavy metals also can cause infertility.What is normal platelet morphology?
Measurement. The normal range (99% of population analyzed) for platelets in healthy Caucasians is 150,000 to 450,000 per cubic millimeter (a mm 3 equals a microliter). or 150–450 × 10 9 per liter. The normal range has been confirmed to be the same in the elderly and Spanish populations.What is the shape of sperm?
The head of the sperm varies in shape for each animal species. In humans it is flattened and almond-shaped, four to five micrometres long and two to three micrometres wide (there are about 25,000 micrometres in an inch).