Lymphocytes are a population consisting of both B- and T-lymphocytes. In blood smears they have the same morphology. One can see both small (slightly larger than an Rbc 7-8 um) and medium to large (up to 12 um); these represent inactive and activated lymphocytes respectively.
Spruces are large trees, from about 20â60 metres (about 60â200 feet) tall when mature, and can be distinguished by their whorled branches and conical form. The needles, or leaves, of spruce trees are attached singly to the branches in a spiral fashion, each needle on a small peg-like structure.
The white spruce is a large coniferous evergreen tree which grows normally to 15 to 30 metres (49 to 98 ft) tall, but can grow up to 40 m (130 ft) tall with a trunk diameter of up to 1 m (3.3 ft).The bark is thin and scaly, flaking off in small circular plates 5 to 10 centimetres (2.0 to 3.9 in) across.he cones are pendulous, slender, cylindrical, 3 to 7 cm (1.2 to 2.8 in) long and 1.5 cm (0.59 in) wide when closed, opening to 2.5 cm (0.98 in) broad. They have thin, flexible scales 15 mm (0.59 in) long, with a smoothly rounded margin. They are green or reddish, maturing to pale brown 4 to 8 months after pollination.