Concept explainers
Core Skill: Connections In what other organ is a brush border found (refer back to Figure 46.6)? What general conclusions can you draw about the function of such specialized epithelia?
Figure 46.6 The specialized arrangement of tissues in the small intestine. The inner surface of the small intestine is folded into numerous villi, which increase the surface area for digestion and absorption. Within each villus are capillaries and a lymphatic vessel called a lacteal, into which absorbed nutrients are transported. The epithelial cells of the villi have extensions from their surface called microvilli. The microvilli constitute the brush border of the intestine and greatly add to the total surface area.
Want to see the full answer?
Check out a sample textbook solutionChapter 49 Solutions
BIOLOGY-TEXT
Additional Science Textbook Solutions
Chemistry
Fundamentals of Physics Extended
Biological Science (6th Edition)
Chemistry: Structure and Properties (2nd Edition)
Campbell Biology in Focus (2nd Edition)
Laboratory Manual For Human Anatomy & Physiology
- Make a plan drawing of the cross section (Figure 2). A plan drawing is a simple drawing showing only the boundaries between the lumen, the columnar epithelium, the (areolar) connective tissue, the circular smooth muscle, and the longitudinal smooth muscle. A plan diagram serves to illustrate the location and relative thickness of the various tissue layers. No cellular details are necessary in the plan drawing. There should be no more detail than is shown in Figure 2. Please note that many slides do NOT have serosa on them. Keep in mind that your drawing must reflect the image you saw in the lab under the microscope. Label the following structures in your diagram: Longitudinal smooth muscle, Columnar epithelial tissue, Circular smooth muscle, Villi, Areolar connective tissue, and Lumen. Calculate the actual size for the width of the intestine. Include the formula and calculations. Include a scale bar in your drawing. Then show your calculation for your drawing magnification. Include the…arrow_forwardWrite the names of the three types of muscle tissue in the appropriate blanksarrow_forward3. [Essay] Do you know "IceBucket challenge"? The purpose of this public welfare activity is to help the patients with amyotrophic lateral sclerosis. The main symptom of amyotrophic lateral sclerosis is that the muscles of the patients gradually shrink until they die. However, not all muscles of the patients with amyotrophic lateral sclerosis are atrophic. Combined with the knowledge of muscle tissue we have learned, please talk about the types of muscle tissue, and what are the differences in the structure and function of these muscle tissues? What type of muscle atrophy in patients with amyotrophic lateral sclerosis?arrow_forward
- Tissues in a pork chop, make a simple sketch and label the tissues. The bone is a connective layer and supportive tissue the, the lean meat is mostly made up of muscular tissue, the fat is another type of tissue, the white translucent plastic-like material that connects the bone to the lean meat, the lean meatto the fat and the fat to the skin is another type of connective and supportive tissue called the fibrous tissue. plssss help me sketch this and put the labels, thank you.arrow_forwardIdentifying Main Idea and details. Did you know your second largest organ in your body?arrow_forwardFUNCTION Move fluid that contains foreign over free surface LOCATION Pseudostratified columnar Nasal cavity, lungs, trachea SPECIFIC TYPE MAJOR TISSUE Lines uterus, digestive tract organs Secretion and Kidney tubules, glands and their ducts absorption in the kidney Diffusion, filtration Simple cuboidal Simple squamous epithelium Lining of blood and lymphatic vessels and small ducts Stratified squamous Mouth, throat, and vagina Protection against abrasion Mammary gland ducts, sweat glands, pancreas Male gentilia, pharynx trans Urinary tract Specialized to become distended Loose (areolar) tissue (adipose) skin, hypodermis Loose packing material in most organs Tendons, ligaments words Engish (United States) Skin KFocus G Warrow_forward
- What type of muscle tissue (skeletal, cardiac, or smooth) are these layers?arrow_forwardWhat are the three muscle types shown in slide 2 (between cardiac, skeletal, and smooth)? Label A, B, and C, and explain the reasoning for why you labeled each image as such. a. Compare the muscle types. What are the similarities and differences between each muscle type? Why is methylene blue used to stain cells? What does it bind to? Which type of microscopy should you use to visualize cells stained with methylene blue?arrow_forwardLabel all the visible parts of the following skeletal and smooth muscle. Describe these cells and identify their cell shape.arrow_forward
- Sartorious muscle: Please explain its principal function?arrow_forwardHello, good day. I have a problem answering this question, and I need your help. Hoping for a response, and thank you so much. Instruction: The answer must be in a minimum of 2 paragraphs, and each paragraph must have a minimum of 4 sentences. Question: How do you identify cardiac muscle tissue?arrow_forwardComplete the following statements about the structure of the different muscle types. Not all choices will be used.arrow_forward
- Anatomy & PhysiologyBiologyISBN:9781938168130Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark WomblePublisher:OpenStax CollegeBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning