UNIT ONE: the digestive system Digestion breaks down larger molecules into smaller ones. Mouth. Oesophagus is the tube that takes food from the mouth to the stomach using waves of muscle contractions called Peristalsis. Mucus is secreted from the tissues to lubricate the foods passage. Mouth. Oesophagus is the tube that takes food from the mouth to the stomach using waves of muscle contractions called Peristalsis. Mucus is secreted from the tissues to lubricate the foods passage. Many
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delicate parts of the body are protected. These parts are major organs‚ the brain is protected by the skull‚ the lungs and heart are protected by the ribs and the vertical column protects the spinal cord. For example you will see this happen in many sports such as boxing‚ the skull protects the brain from impact of a punch during a fight. Support/ Shape: The skeletal system gives the human body structure. It supports the internal organs that are held within the body in a network of tissue
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“The Difference between the Human Digestive System & the Digestive System of a Cow” Digestion is the mechanical and chemical breaking down of food into smaller components‚ to a form that can be absorbed‚ for instance‚ into a blood stream. Digestion is a form of catabolism; a break-down of macro food molecules to smaller ones. Digestion begins in the mouth‚ for a cow the teeth structure is very different from humans. Instead of having two rows of sharp incisors‚ cows have a single‚ bottom row
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multimedia system‚ you just need to simply double-click on yhe “Human Digestive System.exe” file. By doing this you will directly be brought to the opening screen and after that will directly to the main menu screen. There will be five buttons on main menu‚ they are “Learning”‚ “Exercise”‚ Demo Video”‚ and “Exit”. Each of these button will bring you to several different pages. 1. Learning By clicking this button‚ you will be brought to the learning material of “Human Digestive System”. after you
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Organization of the human body Human anatomy and physiology – study of the structure and function of the human body. Anatomy- the scientific discipline that investigates the structure of the human body. Physiology – The scientific discipline that investigates the process of functions of living things. 6 Structural levels 1. Chemical level – atoms combine to form molecules 2. Cell level – Molecule form organelles 3. Tissue level – similar and surrounding material make up tissues
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ANATOMY ASSIGMENT- THE MUSCULAR SYSTEM Q9.Explain how the muscle produces movement and different types of contraction.(M3) Sliding filament theory. Each muscle fibre is made up of smaller fibres called myofibrils. These contain even smaller structures called actin which is a thin‚ contractile protein filament‚ containing ’active’ or ’binding’ sites and myosin filaments which are a thick‚ contractile protein filament‚ with Myosin Heads. These filaments slide in and out between each other to form
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The Muscular System: Muscle Metabolism 1. List the three roles of ATP in muscle contraction: 1. ________________________________ 2. ________________________________ 3. _________________________________ 2. The potential energy in ATP is released when the terminal high-energy bond is broken by a process called ___________________________. Write the end products of this process: ATP (+ H2O) → _________________ 3. Rebuilding ADP into ATP with a new source of energy is carried out by a process called
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skeletal system is divided into 2 divisions : the AXIAL SKELETON and the APPENDICULAR SKELETON. the axial skeleton consists of your SKULL‚ HYOID BONE‚ and VERTEBRAL COLUMN. and then your APPENDICULAR SKELETON consists of your SHOULDER GIRDLE‚ UPPER EXTREMITIES‚ and LOWER EXTREMITIES. your skull is the superior portion of your axial skeleton‚ wherein you can find your frontal bone‚ that forms the anterior third of your cranial dome‚ parrietal bone‚ that forms the middle segment of the cranial dome
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The Digestive System The digestive system is made up of the digestive tract—a series of hollow organs joined in a long‚ twisting tube from the mouth to the anus—and other organs that help the body break down and absorb food. Organs that make up the digestive tract are the mouth‚ esophagus‚ stomach‚ small intestine‚ large intestine—also called the colon—rectum‚ and anus. Inside these hollow organs is a lining called the mucosa. In the mouth‚ stomach‚ and small intestine‚ the mucosa contains tiny
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The Muscular System: Contraction of Motor Units 1. Define a motor neuron:_____A single nerve cell that branches from the brain or the spinal cord to a muscle or a gland. 2. Define a motor unit: ___A motor neuron and all of the muscle fibers it stimulates. 3. The synapse between a motor neuron and the muscle it innervates is called a ____neuromuscular junction_______. 4. The stimulation of additional motor units will increase the strength of the contraction. This process is called
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