Biology 235 - Study guides, Class notes & Summaries

Biology 235 Physiology - Exam #2 Questions With Verified Answers What are the three types of muscle tissue? - answer1) Skeletal muscle 2) Cardiac muscle 3) Smooth muscle What are the characteristics of skeletal muscle? - answer- Long, cylindrical cells - Multinucleate - Striated with numerous fine bands - Voluntary - Neurogenic, it requires a nerve to stimulate it What are the characteristics of smooth muscle? - answer- Spindle shapes - Flat and unstriated - Single nucleus - Involun...

BIOL 235 midterm 2 Biology (Athabasca University) practice exam questions and answers complete solved solution all done

Biology 235 Physiology - Exam #2 Questions With Verified Answers What are the three types of muscle tissue? - answer1) Skeletal muscle 2) Cardiac muscle 3) Smooth muscle What are the characteristics of skeletal muscle? - answer- Long, cylindrical cells - Multinucleate - Striated with numerous fine bands - Voluntary - Neurogenic, it requires a nerve to stimulate it What are the characteristics of smooth muscle? - answer- Spindle shapes - Flat and unstriated - Single nucleus - Involun...

Biology 235 midterm 2A Exam Questions With 100% Correct Answers sacral plexus - network formed by the roots (anterior rami) of spinal nerves L4-L5 and S1-S4 - supply lower limbs, buttock and perineum - DIAGRAM? TIP: sacral plexus with sciatic nerve look into it what helps enhance sensitivity in a receptor? DIAGRAM encapsulated nerve endings zygomaticus major DIAGRAM draws angle of mouth superiorly and laterally (smiling) foliate papillae DIAGRAM located on lateral aspects of poste...

Biology 235 midterm 2A Exam Questions With 100% Correct Answers sacral plexus - network formed by the roots (anterior rami) of spinal nerves L4-L5 and S1-S4 - supply lower limbs, buttock and perineum - DIAGRAM? TIP: sacral plexus with sciatic nerve look into it what helps enhance sensitivity in a receptor? DIAGRAM encapsulated nerve endings zygomaticus major DIAGRAM draws angle of mouth superiorly and laterally (smiling) foliate papillae DIAGRAM located on lateral aspects of poste...

Biology 235 - Exam 3 Prep Questions With Verified Answers Resistance opposition to blood flow from friction What is hypertrophy? increase in muscle size How does hypertrophy occur? increase in the number of actin and myosin filaments satellite cells protect neuron cell bodies Blood Flow Resistance the opposition to blood flow through a vessel Blood Flow Resistance Factors Blood Viscosity Vessel Length Vessel Radius Flow rate of blood F = (pressure gradient / resistance) or F =...

Biology 235 UBCO midterm 2 Exam Questions With 100% Correct Answers what does the pyramidal tract control? learned motor actions The pyramidal tract works with the ______ to produce smooth, co-ordinated movements. Both are contralateral projections extrapyramidal tracts The CNS develops a _______________. when neural folds fuse along the dorsal midline forming a hollow tube embryonic neural tube what is anencephaly? failure to fuse at the rostral end of the tube. this leads t...

Biology 235 - Exam 3 Prep Questions With Verified Answers Resistance opposition to blood flow from friction What is hypertrophy? increase in muscle size How does hypertrophy occur? increase in the number of actin and myosin filaments satellite cells protect neuron cell bodies Blood Flow Resistance the opposition to blood flow through a vessel Blood Flow Resistance Factors Blood Viscosity Vessel Length Vessel Radius Flow rate of blood F = (pressure gradient / resistance) or F =...

Biology 235 Final Exam Questions With 100% Correct Answers 2024/2025 What is afterload with regards to artery anatomy? - answerElastic arteries - stretch and recoil during pressure pulses Amount of elasticity determines force of afterload How do arterioles affect afterload? - answerProvide vascular resistance and regulate regional blood flow via sympathetic vasomotor tone and pre-capillary sphincters What 4 mechanisms regulate blood pressure in the body? - answerBaroreflex Chemoreceptor ...

Biology 235: Exam 3 Questions With 100% Correct Answers Nonspecific Resistance (Innate Immunity) - answerpresent at birth; includes defense mechanisms that provide general protection against invasion by a wide range of pathogens Immunity (Adaptive Immunity) - answerinvolves activation of specific lymphocytes that combat a particular pathogen lymphatic system - answerthe body system that carries out immune responses is the ____________ ______________. innate immunity - answerrefers to a w...