A refractory period is a period of time where the cells are resistant to depolarisation. There are 3 different refractory periods‚ firstly the absolute refractory period which is the part of the cardiac cycle where no further depolarisation can take place. Secondly it is the relative refractory period where depolarisation of the cells can occur but only if the stimulus is strong enough‚ and finally there is the diminished refractory period where the cells are still resistant to depolarisation but
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Biology Task To investigate the effect of some factor affecting pulse rate Aim TO investigate how exercise affects the pulse rate. To do this‚ we took our normal pulse rate and then compared it with the pulse rate after exercise (walking). We kept all other factors constant so as to study the effect of exercise on pulse rate. Introduction Our heart is a muscle. It’s located a little to the left of the middle of our chest‚ and it’s about the size of our fist. There are lots of muscles all over
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water and the stress of the situation? (Hint: try to name more than 1 hormone and use your notes) Brian’s body would start to produce more ADH. ADH would allow him to retain the water his body does have. His body would also start to produce more epinephrine due to the stress he is under. 4. Would someone with Addison’s disease have normal‚ low‚ or high levels of ACTH in the blood? JFK had Addison’s disease. A person with Addison’s disease would have low levels of ACTH. 5. Which disease is
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do. (Bernard Weiner‚ 1972) If this information is true then humans don’t have control over these actions. An example is our naturally born fight or flight situation‚ our brain secrets a hormone called catecholamine as well as norepinephrine and epinephrine which causes the psychological reaction that the body is in danger and that you need to either fight or run away to protect yourself. (Walter Bradford Cannon‚ 1915) Psychological factors of serial killers involved in the process is after the murders
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Anatomy & Physiology Name____________________________ Ch 10.1 SG (Endocrine Glands) 1. What does the endocrine system consist of? 2. What are hormones? 3. What do hormones influence? 4. How are hormones delivered from endocrine glands to their target organs? 5. Two categories of hormones are ________________ and __________________. 6. Why must insulin be injected‚ yet birth control hormones can be taken orally? 7. How does the control of hormone levels work by
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decreased blood pressure‚ caused by an increased vessel diameter‚ is detected by baroreceptors‚ where an action potential is sent to the brain. Neurotransmitters are released from the brain which prompt the adrenal gland to release hormones such as epinephrine‚ which act as vasoconstrictors. As alcohol consumption
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light-sensitive visual pigments. Also‚ Growth and repair this the most important and Individual amino acids. The body uses amino acids for proteins or nonessential amino acid‚ for other compounds such as for synthesis of neurotransmitters norepinephrine and epinephrine and melanin‚ or for energy. The different side chains of the amino acids making
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Chapter 16: Endocrine System For this assignment‚ please read the chapter and answer the questions below. Please type your answers in red or blue color. Please note that points may be deducted if answers are not submitted in these colors. There is a tutorial on the endocrine glands in Blackboard under the Lab Tutorial button. Use it to study the glands. Under the External Links button The nervous and endocrine systems maintain homeostasis in the body. The nervous system is a fast but short-lived
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Throughout this essay‚ the chosen nursing model of assessing a patient’s social needs and medical history; Roper‚ Logan and Tierney (R-L-T model) Activities of living (AL) will be outlined (Holland et al‚ 2008). Through the use of substantial and relevant theoretical literature‚ AL will be highlighted i.e. biological‚ psychological‚ political economic‚ environmental and social-cultural issues. This will include theoretical highlights of care given to a patient admitted in hospital holistically. Basically
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1) Description- Yoga is the balance of mind and body exercise and the attempt to attain self-enlightenment. There are many different types of yoga and hundreds of schools. The most common types of yoga are Hatha Yoga‚ Raja yoga‚ Jnana Yoga‚ Bhakti Yoga‚ and Karma Yoga. Yoga is considered to be the only type of physical activity to be a complete exercise because it works all of your internal organs and glands that may not be worked by lifting. 2) History- Yoga was developed in India about 5000
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