The Muscular System Teacher pages The muscular system allows us to move. Adults have a certain fixed number of muscle cells‚ approximately 602. . Through exercise‚ such as weight lifting‚ the cells enlarge but the number of cells does not increase. Structure and Function There are three types of muscle tissue—smooth‚ skeletal‚ and cardiac. Each has its own distinctive function‚ and therefore‚ its own distinctive structure‚ but all muscles allow movement of some kind. Skeletal Muscle
Premium Muscle Muscular system Cardiac muscle
Within the brain‚ the main structures that determine mood and behavior are the amygdala‚ the thalamus‚ and the hippocampus. The amygdala is associated with emotions such as anger‚ pleasure‚ sorrow‚ fear‚ and sexual arousal. The thalamus is the region of the brain responsible for speech‚ behavior and movement. The hippocampus helps internalize certain events and creates long-term memory. Recent evidence identifies certain alterations in these areas of the brain in people suffering from depression
Premium Major depressive disorder Bipolar disorder Schizophrenia
Is Betel Nut Chewing All That Bad? Posted on February 15‚ 2007by rodney itaki I am doing some studies into larvicide properties of oils derived from plants that can be used to control mosquitoes and consequently malaria and was doing a literature search. And I came across an article regarding the use of essential oil extracted from betel leaf (daga leaf). The study was done to find out if oil from betel leaf can treat cutaneous or wound infection caused by Chrysomya megacephala(oriental latrine
Premium Artery Blood Blood vessel
appropriate drop box. Identify the Neurotransmitter Function: What does this Neurotransmitter do for us? Possible mental health‚ emotional‚ behavioral‚ or physical issues resulting from too much or too little of the neurotransmitter Acetylcholine It activates muscles‚ enhances sensory perceptions when we wake up and sustains attention. Can assist in causing or worsening of Alzheimer’s Dopamine It helps bodily movements of the muscles and controls human behavior like sleep
Premium Nervous system Brain Psychology
antimuscarinic (anticholinergic) with actions and uses similar to those of benzhexol. It also has weak antihistaminic and local anaesthetic properties. Antimuscarinic drugs are defined by‚ A Dictionary of Nursing (2008) as those inhibiting the action of acetylcholine‚ a neurotransmitter in the parasympathetic nervous system. These drugs relax smooth muscle‚ decrease the secretion of saliva‚ sweat and digestive juice‚ and dilate the pupil of the eye. As mentioned already orphenadrine is used as the hydrochloride
Premium Morphine Pharmacology Dopamine
Part 1 of 17 - 3.33/ 5.0010004 Points Question 1 of 60 0.0/ 1.667 Points Reproduction refers to the formation of new cells for growth only. True False Answer Key: False Feedback: Please review chapter 1. Question 2 of 60 1.67/ 1.667 Points All of the following are examples of organs EXCEPT A. heart. B. gallbladder. C. stomach. D. brain. E. muscle. Answer Key: E Feedback: Good job! Question 3 of 60 1.67/ 1.667 Points All
Premium Reproduction Gamete Reproductive system
problem: congestive heart failure‚ urinary tract infection‚ liver failure‚ and drug or alcohol abuse. People with delirium need immediate medical attention. Delirium is often caused by changes in the chemical transmitter between the nerves‚ called acetylcholine. Even medications can cause this to happen. Delirium symptoms also fluctuate throughout a day. It is most important to emphasize that delirium is a sudden onset‚ unlike dementia which comes on more slowly. The risk of delirium increases for people
Premium Alzheimer's disease Dementia Neurology
[2‚ 5]. Oral treatment includes anticholinergic agents such as glycopyrrolate‚ oxybutinin or amitriptyline which represent the main systemic medications for hyperhidrosis. They inhibit the neuroglandular signaling by blocking the binding of acetylcholine to its receptor in the nerve cells [1‚ 3‚ 5]. Their use is usually restricted to primary focal hyperhidrosis due to frequent adverse effects (dry mouth‚ blurred vision‚ constipation‚ and urinary retention) [1-3‚ 5]. Injectable therapies comprise
Premium Hyperhidrosis
Biopesticides: A Better Alternative for a Healthy Future For decades‚ the metaphorical story of the “Birds and the Bees” has been told to children in order to explain sexual intercourse. Since honey bees are an important part of the fertilization process among plants‚ also known as pollination‚ this story is a good way of speaking openly about the subject without using technical terms. When a honey bee lands on a flower‚ their feet slip into little grooves that hold pollen sacks which they carry
Premium Insect Beekeeping Honey bee
The sliding filament theory is used to explain how muscles contract‚ this is shown by the 5 stages of the sliding filament theory. When the muscle contracts‚ the myosin filaments attach themselves to similar actin filaments‚ this attachment causes formation in chemical bonds this then forms the cross bridges. Myosin and actin molecules are made in a series‚ this series is what makes up a muscle cell. This basic module is called the sarcomere‚ these are what gives the tissue of a skeletal muscle its
Premium Muscle Myosin Muscle contraction