Gap junction - Study guides, Class notes & Summaries

it is true that a eukaryotic cell. contains structures called organelles Eukaryotic cells contain organelles and histones, they have a well-defined nucleus, and are larger than prokaryotic cells. The function of a histone found in a eukaryotic cell focuses on cellular deoxyribonucleic acid (DNA) folding The histones are binding proteins that cause the supercoiling of DNA into chromosomes and do not affect cellular division, movement, or activities. An organelle that is responsible for th...

What are the two main cavities covered in lecture? : Dorsal and ventral What is the function of the dorsal cavity and what two subdivisions does it contain? : Protection of the nervous system; cranial cavity and vertebral cavity What is the function of the ventral cavity and what two subdivisions does it contain? : Encloses internal organs; Thoracic (above diaphragm) and abdominopelvic What does the thoracic cavity contain? : Pleural cavity, mediastinum (surrounds remaining organs), and p...

What is a neuromuscular junction? - ANSWER-Junction between motor neuron and muscle fiber What is a motor unit? - ANSWER-Motor neuron and all fibers it innervates What is a motor end plate? - ANSWER-Pocket formed around motor neuron by sarcolemma What is a neuromuscular cleft? - ANSWER-Short gap between neuron and muscle fiber What happens when acetylcholine is released from the motor neuron? - ANSWER-Causes an end-plate potential (EPP) What occurs during depolarization of a muscle fibe...

ex phys final exam practice questions and answers 100% pass What is a neuromuscular junction? - Correct Answer ️️ -Junction between motor neuron and muscle fiber What is a motor unit? - Correct Answer ️️ -Motor neuron and all fibers it innervates What is a motor end plate? - Correct Answer ️️ -Pocket formed around motor neuron by sarcolemma What is a neuromuscular cleft? - Correct Answer ️️ -Short gap between neuron and muscle fiber What happens when acetylcholine is rel...

BIOL 1201 FINAL SIEBENALLER LSU TEST QUESTIONS WITH CORRECT DETAILED ANSWERS NEURONS: Support Cells: Schwann Cells - Answer-- In PNS (nerves outside of the brain- spinal column) - Form myelin sheath that insulates that axon of vertebrates in the PNS NEURONS: Nodes of Ranvier - Answer-- Non-insulated regions along the axons - Salutatory conduction of the nerve impulses What is the function of the sodium-potassium pump? - Answer-To maintain regulated levels of concentrations of Na & K ...

Williamson- Chapter 5 Anatomy Questions With Correct Answers tissues - Correct Answer->groups of similar cells with a common function histology - Correct Answer->the study of tissues 4 major types of tissues - Correct Answer->epithelial, connective, muscle, nervous epithelial tissue function - Correct Answer->protection, secretion, absorption, excretion connective tissue function - Correct Answer->bind, support, protect, fill spaces, store fat, produce blood cells muscle t...

What are the 3 cell functions? - Aain integrity and shape of a cell n nutrients and form chemical building blocks 3. dispose of wastes strengthens the cell membrane and stabilizes it at temperature extremes - Answer-cholesterol a "coating of sugar" on the cells surfaces - Answer-glycocalyx kinetic energy inherent within a a substance as it moves down its concentration gradient (diffusion & Osmosis) - Answer-passive transport movement of a solute against its concentration gradient - Answ...

How many synapses can each neuron make? correct answers As many as 100,00 synapses How many neurons are in the brain correct answers 85 billion neurons How do most of the neurons transmit information? correct answers Chemical signals with the aid of neurotransmitters Where are the neurotransmitters released from? correct answers Synaptic cleft How many neurotransmitters have been identified? correct answers Over 100 T/F Neurons have receptors for one type of neurotransmitter? corr...

histology correct answers study of tissues and how they are arranged in organs cell junctions correct answers connections between two cells tight junctions correct answers good for tissues that act as barriers desmosome correct answers very strong and help tissues resist stretching gap junction correct answers fairly weak, but great for allowing cells to communicate quickly tight junctions correct answers linkage between two adjacent cells by transmembrane cell-adhesion proteins a...

cells - Answer-smallest thing in organism tissues - Answer-made up of cells. ex muscles tissues organs - Answer-made up of different tissues Microtubules - Answer-Size: Biggest Protein Compostion: Tubulin(alpha beta) Growth: - to + Motor protein: Kinesin/dynein Role: Cell division/Dynamic instability Intermediate Filaments - Answer-Size: Middle Protein Composition: Varies by tissue and animal Growth: n/a Motor Proteins: n/a Role: cell to cell matrix support Microfilaments - Answer-S...