asal Posted March 6, 2011 Share Posted March 6, 2011 (edited) can you help me with this homework plz any of the questions if you can answer would be great UNIT TITLE Human Tissues and Systems Level 3 Credit Value 3 Unit Code Learning Outcomes Assessment Criteria Q.No Marks available Marks On completion of this unit the learner will: 1. Understand the differences between cells, tissues, organs and systems. 2. Understand the structure and function of human tissues 3. Appreciate histological changes in tissues resulting from disease or other causes 4. Understand the functions and location of human systems The learner can: 1.1 Explain the differences between cells, tissues, organs and systems. 2.1 Explain and interpret the histological structures of a range of named tissues from drawings or photographs of microscopical specimens. 2.2. Relate the histological structure of a tissue to its biological functions in vivo (eg: muscle tissue, bone tissue) 3.1 Explain simple histological changes in a named tissue resulting from either disease or other causes. 4.1 Explain the essential functions of the named body systems. 4.2. Relate key structures in a body cavity (cranial, thoracic, abdominal or pelvic) to body systems. 1 2a 2b 3 4a 4b 10 Total = 10 9 10 Total = 19 5 Total = 5 10 5 Total = 15 Nb. References must be included Harvard system only Refs 1 Grand total 50 % Level Diagram 1: The Tissues Composing the Stomach 1. Use the diagram above to distinguish between the terms cells, tissues, organs and systems …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… ……………………………………………………………………………………………………. ……………………………………………………………………………………………………. 10 2a. Make fully labelled biological drawings of the following tissues during the allocated practical sessions. Please attach these at the back of your work Ciliated epithelial tissue [T.S. of trachea or fallopian tube] Striated muscle [teased skeletal muscle, L.S.] Bone [T.S. of compact hard bone to show a single Haversian system] 9 2b. Answer the following questions about these tissues which specifically relate to how the tissues are specialised or adapted with respect to their microscopic/histological structure to carry out their function. Ciliated epithelial cells are usually either cuboidal or columnar in their appearance. Why is it important that they have this shape? Give 2 reasons. Reason 1………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………… 1 Reason 2…………………………………………………………………………………………. …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… 1 [ii] Muscle cells are extremely long cells when compared to other cells in the body. Give 2 reasons for their long length. Reason 1………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… ……………………………………………………………………………………………… 1 Reason 2 ………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… ………………………………………………………………………………………………… 1 The contractile proteins in smooth muscle are distributed differently from those in striated muscle. State how their distribution differs in the 2 types of muscle cells mentioned. …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… 2 [iii] State 2 ways in which the histological structure and/or composition of compact hard bone is specialised or adapted to allow it to carry out its function. Each of your answers should include a statement about a particular function of bone and the structure/adaptation which allows that function to be carried out. Consider the Haversian system only. Function 1 …………………………………………………………………………………………………… …………………………………………………………………………………………………… ……………………………………………………………………………………………………1 Adaptation 1 …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… ……………………………………………………………………………………………… 1 Function 2 …………………………………………………………………………………………………… …………………………………………………………………………………………………… ……………………………………………………………………………………………………1 Adaptation 2 …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… …………………………………………………………………………………………………… ……………………………………………………………………………………………… 1 3. Describe how the structure and function of the ciliated respiratory epithelium changes due to smoking. Use the bioviewers in class. (Your answer should include a description of normal ciliated respiratory epithelium and 4 changes that occur to it due to smoking) ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… ………………………………………………………………………………....................................... ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… ………………………………………………………………………………....................................... ………………………………………………………………………………………………………… ………………………………………………………………………………....................................... ………………………………………………………………………………………………………… 5 4a. Please complete the missing parts of the following table:- Table 1: The Body Systems SYSTEM MAJOR ORGANS FUNCTIONS Digestive a. Breaks down and absorbs foods for use by cells; eliminates waste b. Bones, cartilage, joints c. d. Cardiovascular Blood, heart, blood vessels e. f. Endocrine Glands and tissues which produce hormones g. Muscular h. i. j. k. Regulates body activities by nerve impulses l. Lymphatic vessels, spleen, thymus, tonsils, lymph nodes m. n. o. p. Supplies oxygen to cells; eliminates carbon dioxide; regulates acid-base balance Reproductive q. r. s. Kidneys, urinary bladder, ureters, urethra. t. u. 10 4b. Match the following by writing the lower case letter e.g. [a] in the column to the left of the capital letter ( Please do not draw any crossing over lines on the table ):- Lower case letter Table 2: Body Cavities ê A. contains urinary bladder and reproductive organs a. dorsal cavity B. contains the brain b. cranial cavity . C. contains heart c. abdominal cavity D. region between lungs, from breast bone to backbone d. vertebral cavity E. separates thoracic and abdominal cavities e. pelvic cavity F. contains lungs f. pleural cavity G. contains the spinal cord g. mediastinum H. consists of thoracic and abdominopelvic cavities h. diaphragm I. contains stomach, pancreas, liver i. ventral cavity J. consists of cranial cavity and vertebral canal j. pericardial cavity 5 References:- Edited March 6, 2011 by asal Link to comment Share on other sites More sharing options...
mooeypoo Posted March 6, 2011 Share Posted March 6, 2011 Double posting. Please see answer in your other thread. Don't post full homework sheets, we're not here to just hand you answers. If you want help, pick a question, tell us what you already tried to do and where you got stuck, and we will direct you to how to do them. Link to comment Share on other sites More sharing options...
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