SENSORY ORGANS Introduction The knowledge of the world around us stimulates our sensory organs to provide us with the information of what is going on around us. All sensory information is picked up by the sensory receptors‚ specialised cells that monitor internal and external conditions. Examples of sensory organs are: SENSE ORGAN Eye Ear (Organ of Corti) Ear (Semicircular Canals) Ear (utricle and saccule) Olfactory mucous membrane Taste Buds Skin Skin Skin Skin Various Muscle Spindle Golgi tendon
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WATER FLOW ACROSS CELL MEMBRANES pg. 1 Lab Report 1 Water Flow Across Semi-Permeable Membranes WATER FLOW ACROSS CELL MEMBRANES pg.2 WATER FLOW ACROSS CELL MEMBRANES The movement of water across semi-permeable membranes as it relates to the laws of thermodynamics and energy flow with the diffusion
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The Lipid Barrier of the Cell Membrane‚ and Cell Membrane Transport Proteins The structure of the membrane covering the outside of every cell of the body is discussed in Chapter 2 and illustrated in Figures 2–3 and 4–2.This membrane consists almost entirely of a lipid bilayer‚ but it also contains large numbers of protein molecules in the lipid‚ many of which penetrate all the way through the membrane‚ as shown in Figure 4–2. The lipid bilayer is not miscible with either the extracellular
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Discuss the movement (of substances) inside cells Substances can travel from inside the cell out and from outside of the cell inwards across a membrane. Movement of substances also occurs inside the cell and is part of many of the processes that occur inside cells in both eukaryotic and prokaryotic cells as well as animal and plant cells. The movement of substances may occur across a semi-permeable membrane such as the phospholipid bilayer membrane on the outside of a cell in the digestive
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Sense Organs The General Senses Sensory receptors n monitor external or internal conditions. Simplest are free nerve endings. -Temperature - pain -touch -pressure -vibration Receptors throughout the body •Special senses nSmell ntaste nvision nbalance nhearing nReceptors located in sense organs (e.g.‚ ear‚ eye). EYES nAccessory Structures of the Eye qEyelids (palpebra) and glands qSuperficial epithelium of eye nConjunctiva qLacrimal apparatus nTear production and removal
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SENSE ORGANS RECEPTORS (Sense organs) * Transducers of specific forms of kinetic energy * Change mechanical‚ electrical‚ thermal‚ chemical‚ or radiant energy into nerve impulses in sensory neurons Two major categories: * GENERAL RECEPTORS * Often exist as individual cells or receptor units * Widely distributed throughout the body * Most numerous such as: * touch‚ temperature‚ and pain: and * to initiate various reflexes necessary for maintaining
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Organ Systems Project (Digestive‚ Excretory‚ Circulatory‚ Reproductive‚ Nervous) There is an enormous variety of life on our planet Earth ranging from simple cell bacteria to complex multicellular animals. Animals are creatures in the kingdom Animilia‚ one of the kingdoms in Whitakers 5 kingdom system. Their bodies consist of 555tanimal eukaryotic cells. Meaning their cell or cells contain a nucleus‚ are surrounded by a cell membrane (phospholipid bilayer) and can self-reproduce in a free
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The Organ Systems of the Human Body The human body is made up of 11 organ systems. The Integumentary System‚ Skeletal System‚ Muscular System‚ Nervous System‚ Endocrine System‚ Circulatory System‚ Lymphatic System‚ Respiratory System‚ Urinary System‚ Digestive System‚ and Reproductive System for the male and female. Also‚ we have the Immune System which is an accumulation of cells rather than an organ system. Protection‚ support and movement are the main functions of the Integumentary system
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7 BIOLOGY Though these are different experiences‚ can’t they be felt at the same time? Can’t we hear‚ touch‚ smell and taste while seeing? Have you ever thought how this happens? You know that we get information about the changes in the environment through the sense organs. What are the sense organs we have? What is the function of each? Prepare a note on it. ..................................................................... Let us examine the parts of the eye. Make a list of those you
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Organ transplantation is a treatment of choice to replace damaged organs through the intervention of a donor. There are several types of donors according to their provenance. The donor of organs between two identical twins is called isograft‚ when donor and recipient is the same individual is called autograft‚ donor from the same species but different person is called allograft and donor coming from different species with the recipient is called xenograft (Fernandez‚ 2012). Apart of the above
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