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Which is a correct statement about cross bridge cycling? A. actin does not initiate binding to myosin B. actin pulls myosin C. ATP's energy is used to unbind myosin and actin D. the release of ADP and Pi triggers the deflex - ️️A Correct statements about crossbridge cycling are that actin does not initiate binding to myosin, ATP's energy is not used to unbind myosin and actin, myosin pulls actin, and the release of ADP and Pi triggers the flex The load on a skeletal muscle has...

The current measurement of a typical cell's membrane potential is -60 mV. That cell should therefore be correctly categories as ___ and the likelihood of an action potential occurring is ___. - ️️Depolarized - not able to be determined. Cell B's cytosol is observed to be more negatively charged than the surrounding interstitial fluid. A mechanically-gated sodium channel is open in Cell B. Assuming a typical sodium distribution, sodium would have a net movement ___ Cell B. - ️️...

main component of plasma membrane, polar head, two nonpolar tails, spontaneous bilayer - ️️phospholipid in what order from largest to smallest are the fluid compartments? - ️️intracellular, interstitial fluid, plasma what is the barrier between IF and intracellular fluid? - ️️cell membrane what is the barrier between plasma and IF? - ️️capillary wall cation = ?/anion = ? - ️️positive, negative what are the three fluid compartments? - ️️Plasma, interstitial fluid, i...

Is there an energy cost with active transport? Why or why not? - ️️there is an energy cost because the solutes are traveling against the gradient Does active transport use diffusion? Why or why not? - ️️it does not use diffusion because it is going against the gradient What regulates carrier mediated transport? Why? - ️️binding regulates transport because the solute must interact with the protein, changes the protein's shape What are the two types of carrier mediated transpo...

Increase in osmolarity = more ________ present = smaller _______ present - ️️solute, water _______ gather info about NT; environmental stimuli - ️️dendrites When you have osmotic pressure, you must have what 2 components? - ️️1. semipermeable membrane 2. immobile membrane ____ & ____ are examples of carrier mediated. - ️️facilitated, active Primary active transport uses ATP _____ while secondary active transport uses ATP _____. - ️️directly, indirectly T or F: choles...

preventing hypocalcemia: 1,25 dihydroxyvitamin D (calcitriol; active vitamin D) - ️️source is UV impact on skin creates vitamin D then it is converted by liver then kidney via PTH. The action is to stimulate intestines to absorb Ca2+ . Americans typically require synthetic intake because of wearing sunscreen. .Hypercortisolism (Cushing's syndrome) - ️️-high glucose (can be mistaken for diabetes) -low immune system (cortisol suppresses immune system) -fragile bones (cortisol bre...

Functional assessment - ️️questioning during health history; focuses on the functional patterns that all humans share: health perception and health management, activity and exercise, nutrition and metabolism, elimination, sleep and rest, cognition and perception, self-perception and self-concept, roles and relationships, coping and stress tolerance, sexuality and reproduction, and values and beliefs How do you assess LOC? - ️️1. Spontaneous: enter the room and observe 2. Usual voic...

The production of red blood cells in the bone marrow is called: A) hematopoiesis. B) hemolysis. C) hemoptysis. D) hemianopsia. - ️️hematopoiesis. When testing for muscle strength, the examiner should: A) observe muscles for the degree of contraction when the individual lifts a heavy object. B) apply an opposing force when the individual puts a joint in flexion or extension. C) measure the degree of force that it takes to overcome joint flexion or extension. D) estimate the degree o...

menarche - ️️the first menstrual period menorrhagia (hypermenorrhea) - ️️regularly occurring bleeding excessive in duration and flow (longer than 7 days) metrorrhagia - ️️bleeding at irregular intervals menometr amenorrhea - ️️absence of menstruation orrhagia - ️️irregular, heavy/lengthy bleeding intermenstrual bleeding - ️️bleeding at any time between otherwise normal menses postmenopausal bleeding - ️️bleeding after menopause oligomenorrhea - ️️infrequen...

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Which anticholinesterase is used to help Alzheimer's disease? a. neostigmine b. physostigmine c. pyridostigmine d. all of the above - ️️physostigmine T/F: acetylcholine binds at the neuromuscular junction. - ️️true Which receptors bind acetylcholine? a. muscarinic b. nicotinic c. both d. none - ️️muscarinic and nicotinic Which of the following is true about acetylcholine? a. it has a 3ºN and is charged b. it has a 3ºN and is not charged c. it has a 4ºN and is char...

What is "stratified random sampling"? - ️️the population is naturally divided into two or more groups of similar subjects, called STRATA. from there, a simple random sample is then chosen from each group, and these simple random samples are combined to then give the complete sample. What is "discrete quantitative variable"? - ️️a variable whose measurements can assume only a COUNTABLE number of possible values Population - ️️the entire group of individuals or subjec...

Radiosensitivity is determined by four factors: - ️️1) The metabolic state of the tissue-the faster cells are dividing in a tissue, the more radiosensitive that tissue is (Law of Bergonie and Tribondeau); radiosensitive-bone marrow stem cells, sperm, ova; Radioresistant-nerve and muscle. 2) The rate at which the radiation is delivered (protraction) -the more radiation delivered at one time, the more cellular damage occurs 3) The amount of time between exposures (fractionation)-the more...

Factors Predicting Healthy Behaviors - ️️younger, wealthier, educated, social supported, and less stressed individuals are more likely to have healthier behaviors u-shaped "invincibility fable" healthy behavior dips during adolescent and emerging adulthood Health - ️️a complete state of physical, mental, and social well-being and not merely the absence of disease or infirmity German origin "soundness of body" "wellness" = optimum state of health Biomedical model...

What is the biggest limitation with Nagi's Disablement Model? - ️️Does not classify what healthy is - how do you know who is healthy Verbrugge 1994 Revised Nagi's Model - ️️Instead of being diseased focused, this model looks into extra factors These factors include pre-existing risk factors, intra-individual factors, and extraindividual factors How does health differ from fitness? - ️️Health is not just related to physical well being or the absence of disease or impairmen...

Tertiary Structure - ️️3 dimesional shape of a protein will have a single polypeptide chain "backbone" with one or more protein secondary structures disulfide bridges Carboxyl group -COOH - ️️found on organic acids like amino acids and nucleic acids. Polar group due to polar covalency between O and H and O and C readily ionizes in water to release Hatomic mass - ️️number of protons and neutrons in an atom orbital - ️️the space where an electron orbits an atom's nuc...

fiscal policies - ️️government influence on the amount of savings and expenditures, accomplished by altering the tax structure and by changing the levels of government spending invisible hand - ️️a term created by Adam Smith to describe how an individual's personal gain benefits others and a nation's economy Technical Skills - ️️skill required to accomplish a specific kind of work being done in an organization. (managers may not perform but should be able to train employe...

radiosensitivity is determined by 4 factors - ️️metabolic state of the tissue, rate at which radiation is delivered (protraction), amount of time between exposures(fractionation), and size of the area expozed. transmission - ️️photon passes completely through patient and strikes image receptor, resulting in black(radiolucent) areas on image. radiation - ️️a form of electromagnetic energy production of radiation - ️️source of electrons, a way to accelerate the electrons, a ...

U.S. Court of Appeals - ️️Nominated by the President and approved by the Senate. They do NOT have trial cases. Examines cases from District Court for errors. Covers several states > circuit Diversity Jurisdiction - ️️A case may be removed from state to federal court when the amount in controversy exceeds $75,000 and where the persons that are parties are "diverse" in citizenship, which generally indicates that they are citizens of different states or non-U.S. citizens La...