'Ca channels' diaporamas de présentation

Hematocrit, plasma & serum

841 views • 60 slides

Biology 212 Anatomy & Physiology I

Biology 212 Anatomy & Physiology I. The Heart. Heart: Mass: 250-300 g Located in center of thorax (mediastinum) Anterior to vertebrae Posterior to sternum & 2 nd through 6 th rib Superior to diaphragm Surrounded by lungs.

503 views • 50 slides

Cardiac Muscle is only found in the heart

Cardiac Muscle is only found in the heart. Striated muscle cells with T- tubules on the Z lines 1 T-tubule per sarcomere Skeletal muscle which is faster has 2 per sarcomere. Cells contract in response to an action potential (like skeletal muscle).

742 views • 43 slides

Cardiac Muscle is only found in the heart

Cardiac Muscle is only found in the heart. Striated muscle cells with T- tubules on the Z lines 1 T-tubule per sarcomere Skeletal muscle which is faster has 2 per sarcomere. Cells contract in response to an action potential (like skeletal muscle).

516 views • 43 slides

Cardiac Physiology

Cardiac Physiology. The heart: chambers, the valves Cardiac muscle cells Some cardiac muscle cells are autorhythmic Arrangement of cardiac muscle cells Excitation-contraction coupling. Atrioventricular (AV) Valves. guard the passageway between the atria and the ventricles

397 views • 37 slides

Regulation of peripheral circulation: introduction

Regulation of peripheral circulation: introduction. Ion channels, membrane potential & vascular tone. Intrinsic control of resistance vessels Metabolic control Autoregulation Endothelial factors Extrinsic control of resistance vessels. RMP = resting membrane potential

522 views • 29 slides

Nerves and Muscles

273 views • 27 slides

Rhythmical Excitation of the Heart

Rhythmical Excitation of the Heart. Specialized Excitatory and Conductive System of the Heart. Sinus node (Sinoatrial or S-A node) Internodal pathways between Sinus and A-V nodes Atrioventricular (A-V) node A-V bundle The left and right bundle branches Purkinje fibers.

4.18k views • 25 slides

Rhythmical Excitation of the Heart

Rhythmical Excitation of the Heart. Specialized Excitatory and Conductive System of the Heart. Sinus node (Sinoatrial or S-A node) Internodal pathways between Sinus and A-V nodes Atrioventricular (A-V) node A-V bundle The left and right bundle branches Purkinje fibers.

876 views • 25 slides

Regulation of cardiac muscle contraction

Regulation of cardiac muscle contraction. Graded contractions Effect of cardiac muscle stretching Channel activity during action potentials In myocardial contractile cells In autorhythmic pacemakers. Graded contraction. The amount of force varies with the number of cross-bridges formed

480 views • 20 slides

Neurons Structure and Conduction of a Nerve Impulse

Neurons Structure and Conduction of a Nerve Impulse. Two coordinating systems which respond to environmental stimuli. Nervous System & Endocrine (hormone) System Begin with Nervous System (data processing system) 3 interconnected functions ? input / integration / output.

238 views • 18 slides

Diversity of Form and Function of Voltage- Gated Potassium Channels

Diversity of Form and Function of Voltage- Gated Potassium Channels. 80 Family Members 5 Architectures 3 Gene SubFamilies. Classes to highlight function : 1. Shaker 2. K Ca 3. K IR. 3 Gene SubFamilies: 6TM 2 TM 4TM Evolutionary tree does not

323 views • 17 slides