Psu bio 161 exam 4 - Study guides, Class notes & Summaries

BIO 161- EXAM 4 DEHART PSU QUESTIONS AND ANSWERS A+ GRADED Skeletal Muscle Tissue Voluntary, striated, multinucleate, attached to bone or fascia Cardiac Muscle Tissue Involuntary, striated, mononucleate, autorhythmic Smooth Muscle Tissue Involuntary, non-striated, mononucleate, found in GI tract Excitability Respond to chemicals released from. motor neurons Conductivity Ability to propagate electrical signals over the membrane Contractility Ability to shorten and generate for...

BIO 161 PSU EXAM 4 QUESTIONS AND ANSWERS A+ GRADED What are the three types of muscle tissue? skeletal, cardiac, smooth What are some characteristics of skeletal muscle? -Voluntary - Striated - Multinucleate - Attached to bone or fascia (connective tissue) What are some characteristics of cardiac muscle? - Involuntary - Striated - Mononucleate - Autorhythmic (cells can self-regulate contraction) What are some characteristics of smooth muscle? - Involuntary - Non-striated

BIO 161 PSU EXAM 5 QUESTIONS AND ANSWERS A+ GRADED Functions of bone 1. Support - Hold body upright, support muscles and organs 2. Protection - Enclose important organs 3. Movement - Provide attachment sites for muscles 4. Electrolyte and Acid/Base Balance - Stores and releases ions needed by the body - Stores and release salts to buffer the blood 5. Blood Cell Differentiation - Location of bone marrow, the main producer of blood cells Diaphysis (long bone) location shaft of ...

BIO 161 PSU EXAM 3 QUESTIONS AND ANSWERS A+ GRADED Where are neurotransmitters synthesized? Where are they transported to and in what? What cell structure do they use to help transport? - cell body - axon terminal in vesicles - microtubules pre-synaptic neuron a neuron that delivers a signal to a synapse post-synaptic neuron the neuron on the receiving end of the synapse When does secretion occur? When an action potential reaches the end of the axon What steps follow the dep...

BIO 161 - PSU - EXAM 3 QUESTIONS AND ANSWERS A+ GRADED Gas neurotransmitters dopamine & norepinephrine Secretion processing of converting electrical signal to chemical signal then back to electrical in postsynaptic neuron Synapse Steps 1 - AP reaches postsynaptic terminal 2 - Ca++ voltage gated channels open 3 - Ca++ binds to vesicles to help them burst 4 - Neurotransmitters in vesicles travel through cleft and bind to postsynaptic ligand channels Snare Proteins docking vesi...

skeletal system -️️dynamic system of connective tissue; living tissue functions of bone - ️️support, protection, movement, electrolyte balance, acid-base balance, blood cell differentiation support function of bone - ️️holds body upright; supports muscles and organs protection function of bone -️️enclose important organs movement function of bone - ️️provide attachement sites for muscles electrolyte and acid-base balance function of bone - ️️stores and releases ions...