CHAPTER 3: THE MUSCULAR SYSTEM Three Types of Muscle * Muscle tissue is a collection of cells that shorten during contraction which create tension that results in movement * Tendons are touch bands of connective tissue that join muscle with bones Skeletal muscles * Muscles that are attached to bone (by tendons and other tissue) * Comprise 30 to 40% of human body weight * Humans have conscious control (conscious muscle) over these muscles (the brain can tell them what to do)
Premium Muscle Knee Myosin
Rehabilitation Muscle Physiology Physiological changes of training Testing - Evaluation Strength training concepts Return to function - Core Muscles Muscle Physiology Muscle Structure Fiber Type Muscle Contraction Energy Systems Force of Contraction Physiologic changes of training Skeletal Muscle Structure Motor Unit Mitochondria produce energy ATP Sarcolemma muscle fibers membrane Sarcomere contractile unit of skeletal muscle. Myofibril are
Premium Muscle Adenosine triphosphate Myosin
Exercise Electrocardiogram Lab Purpose The purpose of this lab is to understand the concepts of an electrocardiogram of a normal person as well as understand what a normal ECG and an exercise ECG look like when performing a Bruce protocol treadmill test. Methods Materials- Test subject‚ ECG-12lead‚ 10 electrodes‚ treadmill The subject must have the electrodes properly connected before starting the treadmill test. Remove any hair from the subject before placing the electrodes on. The
Premium Cardiology Ventricular fibrillation Heart rate
Exercise 2: Skeletal Muscle Physiology: Activity 1: The Muscle Twitch and the Latent Period Lab Report Pre-lab Quiz Results You scored 20% by answering 1 out of 5 questions correctly. 1. Skeletal muscles are connected to bones by Your answer : c. ligaments. Correct answer: b. tendons. 2. Skeletal muscles are composed of hundreds to thousands of individual cells called Your answer : b. myofibrils. Correct answer: c. fibers. 3. The term motor unit refers to Your answer : a. all of the motor neurons
Premium Skeletal muscle Neuromuscular junction Acetylcholine
ions during contraction of a skeletal muscle? Calcium is an important element for live. Calcium is found in the bones of animals and humans. In muscle contraction is produce as a result of Calcium ions ‚ Ca2+‚ It comes from rapid release from the cisternae of the sarcoplasmic reticulum which cause a chemical reaction between ATP and the myofilaments. Another important function of Calcium ions occurs during the state of resting muscle. During the state of resting muscle‚ calcium Ion is “maintaining
Premium Muscle Bone Nutrition
9.01 Brings oxygenated air to the alveoli. Removes air containing carbon dioxide. Filters‚ warms‚ and humidifies the air. Produces sound (speech). Helps with sense of smell. Assists to regulate the pH within the blood. 9.02 Nose- Nares/Nostrils- Allow entrance for air. Nasal Cavity- Lined with mucous & ciliated epithelium. Air is filtered‚ warmed‚ and humidified. Nasopharynx- Part of the throat serving only as a passageway for air. Pharynx- Throat. 3 Passageways that serve for air
Premium Respiratory system
organization of tissues into organs. The structures and functions of organs determine their relationships within body systems of an organism. Homeostasis allows the body to perform its normal functions. Explain how the muscular/skeletal system (skeletal‚ smooth and cardiac muscles‚ bones‚ cartilage‚ ligaments‚ tendons) works with other systems to support the body and allow for movement. Recognize that bones produce blood cells. For this unit you will submit all assignments through your shared “Flipped Resources”
Free Muscle Muscular system Cardiac muscle
REVIEW SHEET EXERCISE 6 Cardiovascular Physiology NAME: LAB TIME/DATE: 1. Define each of the following terms: • autorhymicity- The heart is autorhythmic. This means it generates its own rhythmic action potential independent of the nervous system. • sinoatrial node- is the impulse-generating (pacemaker) tissue located in the right atrium of the heart‚ and thus the generator of normal sinus rhythm. • pacemaker cells- are specialized cells that cause involuntary muscles and tissues to
Premium Action potential Parasympathetic nervous system Heart
Worksheet 2- Brittani Wright 1. a) Define a cell. A cell is the basic unit of life b) What is a unicellular organism? An organism that consists of only one cell c) Can a cell be multicellular? No because a cell is the smallest unit of life‚ cells can however join together to start forming something else 2. a) What is a difference between prokaryotic and eukaryotic cells? b) What is one significant similarity? Prokaryotic cells do not have a neucleus and Eukaryotic cells do have a nucleus
Premium Cell Organelle Protein
Cardiovascular Physiology and Blood Pressure July 27‚ 2009 BY 409L - LW Blake Perry Lab Partners: Jennifer Rastegar and John Riopka Abstract This experiment was designed to observe a baseline heart rate and blood pressure and to examine various modifications of the two. This experiment utilized both the BiopacPro and PhysioEx computer programs. The PhysioEx program was used to simulate a heart rate and modifications to it. The BiopacPro program was used to monitor a volunteer’s blood pressure;
Premium Blood pressure Heart Artery