A&P 1 Exam #3 Review 2023/2024 updated to pass

A&P 1 Exam #3 ReviewWhat regulatory proteins can be found on an actin molecule? - correct answer Troponin and Troponin myosin Axon terminal clusters at the ends of neuromuscular junctions are referred to as what? - correct answer Synaptic end bulbs What is the sequence that muscle action potentials must go through to excite a muscle cell? - correct answer Axon of neuron, sarcolemma, T-tubules How do different types of muscle tissue differ from each other? - correct answer Microscopic anatomy, location, and type of control What are the major functions of muscle tissue? - correct answer A. Produces movement(but can only pull) B. Maintain posture C. Stabilizes joints D. Generates heat What is the property of muscle that gives it the ability to stretch without damage? - correct answer Elasticity The hearing centers are located in the ____ - correct answer Temporal lobe What occurs when the nerve membrane becomes highly permeable to sodium? - correct answer Depolarization occurs Be able to identify a "resting" polarized axon - correct answer ++++ ----- (+) outside (-) inside What is a condition in which the neuron membrane is more positive on the outside? - correct answer "Resting" Polarized After the fusion of myoblasts the muscle fiber loses its ability to do what? - correct answer Go through cell division How are mitochondria arranged in a muscle fiber? - correct answer -Close to myofibrils What are the contractile organelles of the muscle fiber? - correct answer Myofibrils What part of the skeletal muscle cell releases calcium when stimulated by the T tubules? - correct answer Terminal cisterns of Sarcoplasmic Recticulum The sarcoplasmic reticulum is used for storing what? - correct answer Calcium/ Ca2+ Where are the thin filaments located? - correct answer I and A band What are the types of proteins contained in myofibrils? - correct answer Contractile proteins Regulatory proteins Structural proteins How much of the total body weight of the average adult is muscle tissue? - correct answer 40-50% A neuron that transmits an impulse to the central nervous system after the neuron is stimulated by the environment is called a(n) ____ - correct answer Sensory neuron Where is titin found in a sarcomere? - correct answer From M line to Z disc A cluster of nerve cell bodies outside the central nervous system is referred to as a(n) _____ - correct answer Ganglion The part of a neuron that carries nerve impulses toward the cell body is called ____ - correct answer Dendrite A physician friend of yours tells you about a patient with a head injury who suddenly stopped breathing during the examination. What portion of the brain was probably injured? - correct answer Medulla Oblongata and Pons Monitoring blood CO2 levels as well as triggering breathing at the appropriate times are functions of the _____ - correct answer Medulla Oblongata In an isometric contraction the muscle develops tension but does not do what? - correct answer Lengthens This is a band of connective tissue that surrounds muscles? - correct answer Epimysium When connective tissue extends as a broad flat layer, the tendon is referred to as what? - correct answer Aponeuron Aponeurosis For every nerve that penetrates a skeletal muscle there are generally how many arteries and veins? - correct answer One Artery and One or Two Veins The corpus callosum connects what parts of the brain? - correct answer Left and Right Hemispheres of the Brain Damage to the occipital lobe would be most likely expressed as ___? - correct answer Visual Impairment Which protein is used to reinforce the sarcolemma? - correct answer Dystrophin