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
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller quiz_bit. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.
