'Gated ion channels' presentation slideshows

Nervous & Excretory Systems

Nervous & Excretory Systems. Nervous System. Nerves with giant axons. Ganglia. Brain. Arm. Fig. 48-2. Eye. Mantle. Nerve. 3 Functions. 1. Sensory input - conductions from sensory receptors to integration center - i.e . Eye & ear

1.26k views • 107 slides

Membrane Channels

Membrane Channels. The Cell Membrane is Selective. Criteria for passage through the phospholipid bilayer : Hydrophobic Net zero charge Nonpolar Size is also a consideration Chemicals that will NOT pass through the phospholipid bilayer : Hydrophillic Charged, ionic Polar

1.14k views • 89 slides

Nervous Tissue

Nervous Tissue. Martini Chapter 12 Bio 103 Part 2. How do neurons communicate?. Electrically: Action Potentials All or Nothing ALWAYS EXCITATORY!. How do neurons communicate?. Electrically: Action Potentials All or Nothing ALWAYS EXCITATORY! Chemically: Neurotransmitters

931 views • 76 slides

12.1 Nervous Tissue

843 views • 75 slides

The Nervous System Cells of the nervous system Electrical activity in axons What is a synapse?

The Nervous System Cells of the nervous system Electrical activity in axons What is a synapse? How do neurotransmitters work? What are some neurotransmitters?. Nervous system: Central nervous system (CNS): brain and spinal cord Peripheral nervous system (PNS): cranial

757 views • 63 slides

Biology 103 - Main points/Questions

Biology 103 - Main points/Questions. What does a neuron look like? Why do membranes have charges? How can these charges change?. Functions of the Nervous System. Process and coordinate: sensory input: from inside and outside body motor commands:

649 views • 51 slides

Ion Channels and Electrical Activity

Ion Channels and Electrical Activity. The Cell Membrane is Selective. Criteria for passage through the phospholipid bilayer : Hydrophobic Net zero charge Nonpolar Size is also a consideration Chemicals that will NOT pass through the phospholipid bilayer : Hydrophillic Charged, ionic

576 views • 47 slides

Ion Channels and Electrical Activity

Ion Channels and Electrical Activity. The Cell Membrane is Selective. Criteria for passage through the phospholipid bilayer : Hydrophobic Net zero charge Nonpolar Size is also a consideration Chemicals that will NOT pass through the phospholipid bilayer : Hydrophillic Charged, ionic

570 views • 47 slides

Muscular System: Histology and Physiology

Chapter 9. Muscular System: Histology and Physiology. Functions of the Muscular System. Body movement (skeletal muscles attached to bones) Maintenance of posture Respiration (skeletal muscles of thorax are responsible for the movement necessary for respiration)

3.05k views • 46 slides

Nervous Tissue

Nervous Tissue. Controls and integrates all body activities within limits that maintain life Three basic functions sensing changes with sensory receptors fullness of stomach or sun on your face interpreting and remembering those changes reacting to those changes with effectors

612 views • 45 slides

CNS PHARMACOLOGY

CNS PHARMACOLOGY. FARIBORZ KEYHANFAR Ph.D, D.I.C TUMS - Department of Pharmacology. 238 SLIDES. First to be discovered by humans How Long. 100 yrs ? 500 yrs ? 1000 yrs? 2000 yrs ? Ever since the beginning of written history: Cave Walls, Bible, Torah, Koran, mind altering

1.54k views • 45 slides

Cell Communication

549 views • 40 slides

Electrochemical Potentials

Electrochemical Potentials. A. Factors responsible. 1. ion concentration gradients on either side of the membrane. - maintained by active transport. Electrochemical Potentials. A. Factors responsible. 2. selectively permeable ion channels. B. Gradients not just chemical, but electrical too.

558 views • 32 slides

Gated Ion Channels

Gated Ion Channels. Ahu Karademir Andrei Vasiliev. Contents. General Information Voltage-Gated Ion Channels Ligand-Gated Ion Channels The Acetylcholine Receptor Neurotransmitters Toxin targets. Gated Ion Channels. Another type of membrane transport

785 views • 31 slides

Cell Membranes Osmosis and Diffusion

Cell Membranes Osmosis and Diffusion. Functions of Membranes. 1. Protect cell 2. Control incoming and outgoing substances 3. Maintain ion concentrations of various substances 4. Selectively permeable - allows some molecules in, others are kept out. Phospholipid Bilayer.

452 views • 28 slides

Nerve Signal Transmission

390 views • 27 slides

VII. The Nervous System

VII. The Nervous System. A. Cells of the Nervous System. Neurons - cells specialized for transmitting chemical and electrical signals from one location in the body to another. Cell body- contains most of the cytoplasm, the nucleus and other organelles

380 views • 27 slides

Gated Ion Channels

Gated Ion Channels. A. Voltage-gated Na + channels. 5. generation of AP dependent only on Na +. repolarization is required before another AP can occur. K + efflux. Gated Ion Channels. A. Voltage-gated Na + channels. 6. positive feedback in upslope.

565 views • 26 slides

Cell Communication

Cell Communication. 3 stages of cell communication G Protein-coupled receptors Receptor Kinases Cell signal amplification by phosphorylation Cell response in nucleus (genes) vs. cytoplasm (proteins) Apoptosis. Big Questions:. Why do cells communicate?

657 views • 25 slides

Aim: Nerve Control

Aim: Nerve Control. Nervous Coordination. Types of neurons. Sensory neurons (afferent) receive initial stimuli. Interneurons (associative) are located in the brain or spinal cord. Motor neurons (efferent) stimulate effectors (muscles/glands that perform a response.). Neuron Structure.

348 views • 23 slides