Comp Exam - BIOS252 / BIOS 252 (Latest 2023 / 2024) : Anatomy And Physiology II With Lab - Chamberlain

BIOS-252 Anatomy & Physiology II with Lab BIOS252 Comp Exam Calcium functions - Strengthening bones and teeth - Regulating muscle functions ATP function Transfer and storage of energy Troponin and tromyosin function - Regulatory proteins - Troponin and tropomyosin cover up the binding site on the actin proteins - Actin and myosin are not able to join together until the troponin and tropomyosin move out of the way Potassium functions Helps your nerves to function and muscles to contrac t Identify the muscle that acts as the major agonist for plantar flexion of the foot. Gastrocnemius Extrinsic Muscles of the eye function Medial Rectus rotate the eyes medially. Lateral Rectus rotate the eyes laterally. Superior Rectus turns the eye up Superiorly. Inferior Rectus turns the eye inferiorly. Describe what are EPSPs (excitatory postsynaptic potentials) and when they occur ? Opening of Na+ channels allowing for t he influx of Na+ which causes a depolarization When: When sodium ions en ter cell Sarcomere - Contractile unit of muscle - Separated from each other by dark bands called Z lines - Distance between Z disc to a Z disc Sarcoplasmic reticulum Stores calcium for the cell Perimysium Thicker connective tissue that wraps muscle fibers together in bundles ---fascicles Sarcolemma The plasma membrane of a muscle cell Describe what the transverse tubule is? Infoldings of the sarcolemma which penetrate through the cell and emerge on the other side Describe the effect that inhibitory neurotransmitters have on a postsynaptic membrane ? Makes a neuron less likely to fire an action potential List of the neuroglial cells CNS: ependymal, microglial, astrocytes, oligodendrocytes Schwann cells function and division - Form neurilemma around all PNS nerve fibers and myelin around most of them - Aid in regeneration of damaged nerve fibers - Peripheral nervous system Satellite cells function and division - Surround somas of neurons in the ganglia - Provide electri cal insulation and regulate chemical environment of neurons - PNS