1 : a slender round rod or stick with narrowed ends by which thread is twisted in spinning and on which it is wound. 2 : something (as an axle or shaft) which has a slender round shape and on which something turns. spindle. noun. spin·​dle | ˈspin-dᵊl “,What does spindle mean in biology?”
Besides, biology a spindle-shaped structure formed by microtubules during mitosis or meiosis which draws the duplicated chromosomes apart as the cell divides.
What is a spindle in a cell?
Keeping this in mind, In cell biology, the spindle apparatus (or mitotic spindle) refers to the cytoskeletal structure of eukaryotic cells that forms during cell division to separate sister chromatids between daughter cells. What is a spindle in engineering?
Definition. A spindle is a rotating shaft with a fixture for holding a tool (in the case of a milling, grinding, or drilling spindle) or a workpiece (in the case of a turning spindle). The spindle shaft serves as a support, a positioner, and a rotary drive for the tool or workpiece.
What is spindle in machine?
In machine tools, a spindle is a rotating axis of the machine, which often has a shaft at its heart. … A machine tool may have several spindles, such as the headstock and tailstock spindles on a bench lathe. The main spindle is usually the biggest one.
What role does the spindle play in cell division?
In cell biology, the spindle apparatus (or mitotic spindle) refers to the cytoskeletal structure of eukaryotic cells that forms during cell division to separate sister chromatids between daughter cells.
What is spindle formation during cell division?
The mitotic spindle also begins to develop during prophase. As the cell’s two centrosomes move toward opposite poles, microtubules gradually assemble between them, forming the network that will later pull the duplicated chromosomes apart.
What is a spindle shape?
Definition. adjective. Having a shape like a spindle, that is being wide in the middle then tapering at both ends.
What is the spindle made of?
The mitotic spindle is a highly dynamic molecular machine composed of tubulin, motors, and other molecules. It assembles around the chromosomes and distributes the duplicated genome to the daughter cells during mitosis.
What is a centrioles function?
Centrioles are paired barrel-shaped organelles located in the cytoplasm of animal cells near the nuclear envelope. Centrioles play a role in organizing microtubules that serve as the cell’s skeletal system. They help determine the locations of the nucleus and other organelles within the cell.
What is a spindle on a CNC machine?
Spindles rotate on the axis which receives input on movement from the CNC controller. Spindle is a very important part of a CNC machining center. The form of the spindle determines the speed and cutting force. A machine tool may have several spindles, the biggest one is called main spindle.
What is the difference between a shaft and a spindle?
It consists of the rotating axis of a machine tool including the shaft, bearings and parts attached to it such as centers in case of lathe. But the shaft is the main component which defines the spindle. so we can say that every spindle is a shaft but every shaft is not a spindle.
What does the spindle do on a lathe?
Lathe spindles are used for machine-cutting of workpieces. They can also be referred to as workpiece spindles, as the workpiece is clamped via the chuck of the lathe spindle. The rotating workpiece is machined by the tool attached to the driven machine axis.
How does a machine spindle work?
The spindle is a high performance element! The spindle works with high torque (high power) at low speed for milling operations such as planing. … The spindle of a machining center is complete with jaws that allow to hold the cutting tool. This device is extremely important in order to change automatically the tool.
What is the use of a spindle in a CNC machine?
Spindles rotate on an axis, which receives input on movement from the accompanying CNC controller. In machine shops, high-speed spindles are often preferred, as these configurations work best when dealing with metal and other materials.
What is a spindle in a CNC?
Spindles rotate on the axis which receives input on movement from the CNC controller. Spindle is a very important part of a CNC machining center. The form of the spindle determines the speed and cutting force. A machine tool may have several spindles, the biggest one is called main spindle.
What is the role of the spindle during mitosis quizlet?
During mitosis, the spindle fibers are called the mitotic spindle. … Their proteins help to hold the sister chromatids together and also play a role in chromosome editing.is a protein structure on chromatids where the spindle fibers attach during cell division to pull sister chromatids apart.
What is the role of the spindle apparatus during anaphase?
The mitotic spindle apparatus serves to pull duplicated chromosomes apart.
What is the role of spindle fibers in mitosis apex?
Spindle fibers form a protein structure that divides the genetic material in a cell. The spindle is necessary to equally divide the chromosomes in a parental cell into two daughter cells during both types of nuclear division: mitosis and meiosis. During mitosis, the spindle fibers are called the mitotic spindle.
What is the spindle made of in mitosis?
The mitotic spindle is a highly dynamic molecular machine composed of tubulin, motors, and other molecules. It assembles around the chromosomes and distributes the duplicated genome to the daughter cells during mitosis.
How spindle fibers are formed?
Overview. Spindle fibers are formed from microtubules with many accessory proteins which help guide the process of genetic division. Each spindle fiber forms during cellular division near the poles of the dividing cell. As they extend across the cell, they search for the centromere of each chromosome.
What phase does spindle fibers form?
During prophase, the nucleus disappears, spindle fibers form, and DNA condenses into chromosomes ( sister chromatids ). During metaphase, the sister chromatids align along the equator of the cell by attaching their centromeres to the spindle fibers.
What type of cell is spindle shaped?
Muscle cells are the spindle-shaped cells found in the human body. They have a spindle shape because they control the human body’s contraction and relaxation. The connective tissues encircle these cells.
What is a spindle shaped root?
A spindle-shaped (fusiform) root is a root that tapers at the top and at the bottom, For example the taproot of a white radish. Spindle-shaped leaf [ Botany ] Synonym: Fusiform leaf.
What is the example of spindle shaped cell?