Cell Division Flashcards | Quizlet

Chromosomes attach to the spindle fibers by undivided structures called _____. Interphase _______ is the period of cell life when the cell is not involved in division.

Mitotic Spindle Form and Function - ncbi.nlm.nih.gov

Spindle Structure. Three-dimensional ultrastructural analysis of yeast mitotic spindle microtubules has been accomplished by reconstruction from serial thin sections of cells (Winey et al. 1995) and by electron tomography of thick sections of cells (O'Toole et al. 1999) (Figure 1).The work confirmed that kinetochores are attached by a single microtubule as suggested in early high-voltage ...

Spindle cell | definition of spindle cell by Medical ...

spin·dle cell a fusiform cell, such as those in the deeper layers of the cerebral cortex. spindle cell n. A spindle-shaped cell characteristic of certain tumors. spindle cell any of various cells that are shaped like spindles, being more or less round in the middle with two ends that are pointed. spindle cell A generic term for an elonged and/or ...

Spindle - Wikipedia

Muscle spindle, a specialized innervated muscle structure involved in the reflex action and in proprioception; Spindle neurons are a specific class of neurons that participate in signal transmission in the nervous system; Sleep spindle, an EEG waveform that occurs during sleep; Euonymus or spindle, a genus of deciduous and evergreen shrubs and ...

Spindle | definition of spindle by Medical dictionary

muscle spindle a mechanoreceptor found between the skeletal muscle fibers; the muscle spindles are arranged in parallel with muscle fibers, and respond to passive stretch of the muscle but cease to discharge if the muscle contracts isotonically, thus signaling muscle length.The muscle spindle is the receptor responsible for the stretch or myotatic reflex.

Spindle Structure - Yu, Lin-chien

Dec 06, 2007· A spindle structure is applied for a fastening base of a portable electronic apparatus. The spindle structure includes a fastening rack, a wedge, an elastic body, a holder, a bolt and a stem. The top of the fastening rack is connected to the fastening base. The bottom of the fastening rack is a slide surface in arc shape.

Oocyte Meiotic Spindle Assembly and Function

CHAPTER FIVE Oocyte Meiotic Spindle Assembly and Function F. Severson*, George von Dassow†, Bruce Bowerman{,1 *Department of Biological, Geological, and Environmental Sciences, Center for Gene Regulation in Health and Disease, Cleveland State University, Cleveland, Ohio, USA

Muscle Spindle and Golgi Tendon Organ

Muscle Spindle The muscle spindle is a proprioceptor. a sense organ that receives information from muscle, that senses STRETCH and the SPEED of the stretch. When you stretch and feel the message that you are at the ENDPOINT of your stretch the spindle is sending a reflex arc signal to your spinal column telling you not to stretch any further.

Muscle Spindle - an overview | ScienceDirect Topics

Muscle spindle. (A) Scheme of muscle spindle structure. (B) Influence of muscle stretch and the contraction of intrafusal muscle fibers on sensory endings in the central part of a spindle. Green arrows point in the direction of conduction of electrical potentials by axons of gamma-motoneurons, and blue arrows indicate type Ia and II sensory fibers.

Spindled | Definition of Spindled at Dictionary.com

a spindle-shaped structure, composed of microtubules, that forms near the cell nucleus during mitosis or meiosis and, as it divides, draws the chromosomes to opposite poles of the cell. a short, turned or circular ornament, as in a baluster or stair rail. spindle file.

Mitotic Spindle - an overview | ScienceDirect Topics

The mitotic spindle is a structure that forms during cell division and separates duplicated chromosomes. In eukaryotic cells, the mitotic apparatus is composed of two centrosomes and spindle microtubules (Figure 43.9).The centrosome is 1–2 μm in diameter.Each centrosome is composed of two centrioles of approximately 20 nm in diameter surrounded by a pericentriolar matrix.

Spindle Fibers: Definition and Function - ThoughtCo

May 10, 2019· Spindle fibers are a part of the spindle apparatus, which moves chromosomes during mitosis and meiosis to ensure that each daughter cell gets the correct number of chromosomes. The spindle apparatus consists of spindle fibers, motor proteins, chromosomes, and, in some cells, structures called asters.

What Function Do Spindles Perform During Mitosis ...

Spindle fibers are protein structures that form early in mitosis, or cell division. They consist of microtubules that originate from the centrioles, two wheel-shaped bodies located in the centromere area of the cell. The centromere is also known as the microtubule organizing center. The spindle …

US2795447A - Bearing and spindle structure for door locks ...

BEARING AND SPINDLE STRUCTURE FOR DOOR'LOCKS Filed May 18, l954 v 2 Sheets-Sheet 2 F163. mm . INVENTOR. ERNEST L. SCHLAGE United States Patent BEARING AND SPINDLE STRUCTURE FOR DOOR LOCKS Ernest L. Schlage, Burlingame, Calif., assignor to Schlage Lock Company, a corporation Application May 18, 1954, Serial No. 430,697 .

US20160344248A1 - Spindle structure, electric motor, and ...

A spindle structure capable of accelerating the flow of a fluid in through holes of a rotor. The spindle structure includes a rotatable rotation part. The rotation part includes a tool holding part provided at an axial direction one end of the rotation part and through holes that penetrate the rotation part and open at the end in the axial direction.

Microtubule - Definition, Function, Structure & Quiz ...

Apr 28, 2017· Microtubules play a key role in forming the mitotic spindle, also called the spindle apparatus. This is a structure that is formed during mitosis (cell division) in eukaryotic cells. The mitotic spindle organizes and separates chromosomes during cell division so that the chromosomes can be partitioned into two separate daughter cells. Its ...

Mitotic Spindle Form and Function - Genetics

YEASTBOOK CELL STRUCTURE & TRAFFICKING Mitotic Spindle Form and Function Mark Winey* and Kerry Bloom†,1 *Molecular Cell and Developmental Biology, University of Colorado, Boulder, Colorado 80309 and †Department of Biology, University of …

Spindle Apparatus - Spindle Structure | Technology Trends

Spindle Structure. The cellular spindle apparatus includes the spindle microtubules, associated proteins, and any centrosomes or asters present at the spindle poles.The spindle apparatus is vaguely ellipsoid in cross section and tapers at the ends.