INTEGUMENTARY SYSTEM FUNCTIONS 1. Covering and protection 2. Secretion (cutaneous gland) 3. Excretion of metabolic wastes (cutaneous gland) 4. Sensation (presence of nerve endings and tacticle) 5. Respiration – in frog 6. Absorption – in frog 7. Regulation of body temperature HOMOIOTHERMOUS ANIMALS- warm blooded animals or those with regulated body temperature because of their heat-conserving body. POIKILOTHERMOUS ANIMALS - cold blooded animals whose body temperature closely follows
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Structures and functions of the Digestion System This essay aims to explain the structure and functions of the digestion system‚ starting from consuming a cooked dinner to chemical and physical changes within the body‚ to prepare or help absorption of vital nutrients and help disposal of waste. The structure of the digestive system starts with the gastrointestinal tract‚ it is a tube that runs from the mouth to the anus and because of this some scientist says it is an external organ; there
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Anatomy of the Respiratory System Nose and Nasal Cavity The nose and nasal cavity form the main external opening for the respiratory system and are the first section of the body’s airway—the respiratory tract through which air moves. The nose is a structure of the face made of cartilage‚ bone‚ muscle‚ and skin that supports and protects the anterior portion of the nasal cavity. The nasal cavity is a hollow space within the nose and skull that is lined with hairs and mucus membrane. The function
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-We have 2 parts in our nervous system: The central nervous system (CNS) is the nerves in our brain and spinal chord. The peripheral nervous system (PNS) is a network of nerve cells in the rest of our body. -Our nervous system detects stimuli and allows us to react to them. -Stimulus: a change‚ action or occurrence in the environment that can cause an organism to respond. Eg. Light‚ noise‚ pressure… How do we detect stimuli? -We have sensory organs that detect particular stimuli eg. Skin What
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Respiration §The act or process of inhaling and exhaling §Functions of Respiratory System §Gas exchange between blood and air §Move air to and from exchange surfaces §Protect exchange surfaces from environmental variations and pathogens §Produce sound §Detect olfactory stimuli Types of respiratory organ §1. Aquatic respiration §A. cell membrane – amoeba‚ paramecium §C. gills – mollusks and arthropods §1. papulae – finger-like dermal branchiae §Eg. Starfish
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Exercise No. Respiratory System I. Introduction Oxygen is a very important element which our body needs. Without oxygen life is not possible without oxygen which helps in producing energies that our body cells need. But‚ how do we acquire this oxygen needed by the body? It is by the process called Respiration. Respiration is a process of taking in and out of air from the body. There are two kinds of respiration called cellular respiration and external respiration. Cellular respiration
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precise effects on one’s physiological responses‚ especially regarding one’s nervous‚ endocrine‚ and immune system. The nervous system acts as a “flight or fight” response in the presence of stress. The body will either subconsciously flee from the stressful situation or stay and put up a front and try to manage the stress. These responses are quick and are known as emergency responses. The endocrine system consists of the HPA axis that is more conditioned for long-term stressors. The physiological
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DIGESTIVE SYSTEM Digestion is a process of breaking down complex food molecules into simple ones‚ suitable for absorption and their subsequent utilization in our body PURPOSE to convert complex food molecules into simpler ones‚ suitable for absorption and utilization production of energy‚ necessary for survival & vital chemical activity growth & development of the body repairing function reproductive function lactation FUNCTION to keep the
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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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RESPIRATORY SYSTEM Respiration (processes) 1. Ventilation and breathing‚ which is the movement of air into and out of the lungs 2. Exchange of oxygen and carbon dioxide between the air in the lungs and the blood 3. Transport of oxygen and carbon dioxide between the blood and tissues 4. Exchange of oxygen and carbon dioxide between the blood and tissues. Function 1. Regulation of blood pH 2. Voice production 3. Olfaction 4. Innate immunity ANATOMY OF THE RESPIRATORY SYSTEM A. Upper respiratory
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