Adult centrioles are said to lie at right angles, but a critical review of the literature reveals no support for this information.
gray
The system that nerve cell bodies lie closest to the organs being innervated is the peripheral nervous system. Nerve cell bodies are located in ganglia along the pathway of peripheral nerves, which then extend from the spinal cord to innervate organs and tissues throughout the body.
The nucleus is held in the cytoplasm and is a cell part itself. It acts as the brain of the cell.
The basement membrane is what epithelial cells lie on top of. They separations of apposing layers. They have functions, to have compartmentalization They basically have influences in cell proliferation, adheasion, migration, differentiation. Reservoir for growth factors, enzymes and plasma proteins.
During prophase the chromosomes are identical chromatids connected at the center by a centromere, forming a X-shaped object. The distinguishing feature of prophase is the setup of the mitotic spindle, which is used to maneuver the chromosomes about the cell. The spindle is formed by excess parts from the dismantled cytoskeleton. The spindle is initially setup outside the nucleus. The cell's centioles are duplicated to form two pairs of centrioles. Each pair becomes the part of the mitotic center which forms the focus for an array of microtubules, called the aster. The two asters lie side by side close the the nuclear envelope. Near the end of prophase the asters pull apart and the spindle is formed. The mitotic spindle forms. The cell lines up and starts mataphase 1
CENTRIOLES
Centrioles
rod-shaped? The nucleus is filled with protons and neutrons, usually depicted as spheres. you are thinking of a nucleus in an atom (chemistry). in biology, the rod-shaped structures inside the nucleus is the chromosome, the genetic material of the cell.
The centrioles duplicate and then move to each "pole" of the cell. The duplicated chromosomes line up on the metaphase plate (equator). Here is a good drawing showing the centrioles and the spindle at the link below:
Perpendicular lines.
They have leaves that tend to lie in a plane at right angles to the strongest light, hence usually north and south.
Corresponding and alternate angles
They have leaves that tend to lie in a plane at right angles to the strongest light, hence usually north and south.
Alternate Interior Angles
They are equal alternate angles.
A kite is a 4 sided quadrilateral and its 4 interior angles add up to 360 degrees, as in all quadrilaterals. The two diagonals lie at right-angles to each other.
Alternate exterior angles